Arrows and Symbols
This service information uses various symbols in order to describe different service operations.
Scheme 1
| Callout | Component Name |
|---|---|
| 1 | Front of Vehicle |
| 2 | View Detail |
| 2 | View Detail |
| 3 | Ambient Air Mixed with Another Gas or Indicate Temperature Change |
| 4 | Motion or Direction |
| 5 | View Angle |
| 6 | Dimension (1:2) |
| 7 | Ambient/Clean Air Flow or Cool Air Flow |
| 8 | Lubrication Point- Oil or Fluid |
| 9 | Task Related |
| 10 | Sectioning (1:3) |
| 11 | Gas Other Than Ambient Air or Hot Air Flow |
| 12 | Lubrication Point- Grease or Jelly |
| 13 | Multidirectional Arrow |
Acronyms and Units
| Acronym | Meaning | Definition |
|---|---|---|
| 2WD | Two-Wheel Drive | Indicates that a vehicle has 2 driven wheels OR that a 4WD vehicle uses only 2 wheels for propulsion. So it can be the description of a vehicle configuration OR the operational mode of the drivetrain. |
| 4WD | Four-Wheel Drive | Four-wheeled vehicle with a drivetrain that allows all four wheels to receive power from the engine simultaneously which provides better control on various surfaces. Can be used to describe the configuration of the vehicle OR as the operational mode of the drivetrain. 4WD vehicles usually can turn 2 wheels off to be in a 2WD mode. See also AWD. |
| A/C | Air Conditioning | The cooling and dehumidification of indoor air for thermal comfort. |
| A/D | Analog to Digital | Used in context of converting electrical analog signals to digital signals. |
| ABS | Antilock Braking System | System on motor vehicles which prevents the wheels from locking while braking which helps the driver maintain control in heavy braking conditions. |
| AC | Alternating Current | An electrical current whose magnitude and direction vary cyclically. |
| AM | Amplitude Modulation | Method of impressing data onto an alternating-current (AC) carrier waveform. |
| APP | Accelerator Pedal Position | A pedal that controls the throttle valve. |
| AWD | All-Wheel Drive | All-wheel-drive systems are designed to function on all types of surfaces, both on- and off-road, and most of them cannot be switched off. This can also be called full-time four wheel drive. See also 4WD. |
| AWG | American Wire Gauge | American wire gauge is a standardized wire gauge system used since 1857 predominantly in the United States for the diameters of round, solid, nonferrous, electrically conducting wire. E.g. a wire of AWG10 has a diameter of 2.588mm, AWG20 corresponds to a diameter of 0.812mm. |
| B+ | Battery Positive Voltage | The electrical potential on the positive terminal of the battery. |
| BARO | Barometric Pressure | Atmospheric pressure as measured by a barometer. |
| BCM | Body Control Module | This module supplies vehicle occupants with visual and audible information and controls various vehicle functions |
| BECM | Battery Energy Control Module | Control module used to regulate the battery voltage. |
| BPP | Brake Pedal Position | Position of the foot pedal that moves a piston in the master brake cylinder. |
| CAN | Controller Area Network | Serial data connection between control modules by Bosch |
| CCM | Chassis Control Module | The module that controls various vehicle functions on the Chassis, like Engine/Trans Mount, Active Grille Air Shutter, Load Leveling, etc |
| CD | Compact Disc | A small optical disk on which data such as music, text, or graphic images is digitally encoded. |
| CNG | Compressed Natural Gas | This a substitute for gasoline or diesel fuel. It is made by compressing natural gas (which is mainly composed by methane (CH4), in a percentage range of 70% to 98%) |
| CO | Carbon Monoxide | This is a product of the incomplete combustion of carbon-containing compounds, at room temperature this is a gas. It consists of one carbon atom covalently bonded to one oxygen atom. |
| CO2 | Carbon Dioxide | Chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. |
| CPA | Connector Position Assurance | Part of an electrical connector that prevents the connector from moving out of its socket. Usually needs to be pressed to unlock the connector when disconnecting it. |
| CPP | Clutch Pedal Position | A lever operated with the foot that controls the coupling that connects or disconnects driving and driven parts of a driving mechanism. |
| CV | Constant Velocity | Used in conjunction with CV joints, which connect two shafts at an angle while both shafts always have the same rotational speed without variations. |
| CVT | Continuously Variable Transmission | A transmission in which the ratio of the rotational speeds of two shafts, as the input shaft and output shaft of a vehicle or other machine, can be varied continuously within a given range, providing an infinite number of possible ratios which improves fuel economy. |
| D | Drive | D on the transmission gear selector lever. |
| DAB | Digital Audio Broadcast | Technology for broadcasting of audio using digital radio (carries information via digital signal) transmission. |
| DC | Direct Current | Continuous current, constant flow of electric charge. |
| DLC | Data Link Connector | This is an electronic connector typically located underneath the driver's side dashboard, just above the pedals. The connector has 16 pins. |
| DMM | Digital Multimeter | Electronic measuring instrument that combines several functions in one unit. The most basic instruments include an ammeter, voltmeter, and ohmmeter. |
| DOHC | Dual Overhead Camshaft | Dual overhead camshafts (DOHC) are higher performance engines, they produce more power, and can run at higher speeds because they allow an engine to have four valves per cylinder. Each camshaft operates two of the valves, one camshaft handles the intake valves, and one handles the exhaust valves |
| DPF | Diesel Particulate Filter | Device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. |
| DRL | Daytime Running Lamps | White lights mounted on the front of an automobile that automatically switch on when the key is turned and are intended for daytime use, to increase the visibility of the automobile. |
| DSCC | Distance Sensing Cruise Control | A type of cruise control that automatically maintains the distance between vehicles. |
| DSP | Digital Signal Processor | A specialized microprocessor designed specifically for digital signal processing, generally in real-time computing. |
| DTC | Diagnostic Trouble Code | An electronic signal stored in an automotive computer, indicating the presence of a fault detected by that computer. |
| DVD | DVD | A popular optical disc storage media format the size of a CD. Used mainly for movies but also for data. DVD has no spelled out version (officially it does not mean Digital Video Disc or Digital Versatile Disc, it just means DVD). |
| EBCM | Electronic Brake Control Module | This module contains a microprocessor and software for antilock braking system operation. |
| ECM | Engine Control Module | This electronic module works with a vehicle's sensors and engine control devices to insure that the engine operates at maximum efficiency and performance. It performs three vital functions. Receives electronic signals from engine sensors. Analyzes the data and makes an engine performance decision (based on the pre-set parameters within the unit). Sends an "output command" to an actuator that adjusts engine performance. |
| ECT | Engine Coolant Temperature | A measure of how hot or cold the fluid which flows through the engine in order to prevent its overheating, transferring the heat produced by the device to other devices that utilize or dissipate it. |
| EEPROM | Electrically Erasable Programmable Read-Only Memory | A non-volatile storage chip used in computers and other devices to store small amounts of volatile data, e.g. calibration tables or device configuration. |
| EGR | Exhaust Gas Recirculation | Is an NOx (nitrogen oxide and nitrogen dioxide) reduction technique used in most gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. |
| EMI | Electromagnetic Interference | Electromagnetic interference (also called radio frequency interference) is a disturbance that affects an electrical circuit due to either electromagnetic conduction or electromagnetic radiation emitted from an external source. |
| ESD | Electrostatic Discharge | The sudden and momentary electric current that flows between two objects at different electrical potentials. |
| EV | Electric Vehicle | A category of vehicles that only have an electric drive system. |
| EVAP | Evaporative Emission | A system that controls the fuel fumes in the fuel tank. |
| FM | Frequency Modulation | In telecommunication this is a way to convey information over a carrier wave by varying its frequency. |
| FWD | Front-Wheel Drive | A form of engine/transmission layout used in motor vehicles, where the engine drives the front wheels only. |
| GMLAN | General Motors Local Area Network | A local-area network is a computer network covering a small geographic area, like a home or vehicle. This specific type of LAN connects several controllers inside the vehicle and was developed by General Motors. |
| GPS | Global Positioning System | Satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. |
| GSM | Global System for Mobile Communications | Globally accepted standard for digital cellular communication. |
| GVW | Gross Vehicle Weight | Maximum total weight of a road vehicle or trailer that is loaded, including the weight of the vehicle itself plus fuel, passengers, cargo, and trailer tongue weight. |
| HD | Heavy Duty | Robust design to accommodate large work loads. |
| HID | High Intensity Discharge | A type of light that produces a bright light by using gas filled bulbs. (gas is usually mercury, metal halide, and high-pressure sodium) Uses very little battery power and is a very "cool" light. |
| HO2S | Heated Oxygen Sensor | Heated oxygen sensors have an internal heater circuit that brings the sensor up to operating temperature more quickly than an unheated sensor. An oxygen sensor must be hot (about 600-650°F) before it will generate a voltage signal. The hot exhaust from the engine will provide enough heat to bring an O2 sensor up to operating temperature. |
| HVAC | Heating Ventilation Air Conditioning | This system is sometimes referred to as climate control. Ventilation air ducts installed throughout a vehicle that supply conditioned air to a room through rectangular or round outlet vents. |
| I 2 C | Inter-Integrated Circuit | Serial data connection between Integrated Circuits (microchips) inside a control module invented by Phillips |
| IAT | Intake Air Temperature | Temperature of the air entering intake air flow system of the engine. |
| ICE | Internal Combustion Engine | An engine in which the combustion of fuel and an oxidizer (typically air) occurs in a confined space called a combustion chamber. |
| ID | Identification | Number or Code that identifies a component or control module. Can be written on the part or be transmitted on a bus or via radio. |
| ISP | Internet Service Provider | A company that furnishes corporations and individual consumers with various services, mainly access to the Internet. |
| ISS | Input Shaft Speed | Rotational speed of the input shaft of a transmission. |
| LAN | Local Area Network | Standard network connection PC's. |
| LCD | Liquid Crystal Display | A thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector. |
| LED | Light Emitting Diode | Small light bulbs that fit easily into an electrical circuit they do not have a filament that will burn out, and they do not get especially hot. They are illuminated solely by the movement of electrons in a semiconductor material. |
| LIN | Local Interconnect Network | Computer networking bus system used within automotive network architectures. Similar to CAN, but cheaper and less powerful. |
| LPG | Liquefied Petroleum Gas | A mixture of mainly propane and butane, produced commercially and stored under pressure to keep it in a liquid state. |
| MAF | Mass Air Flow | The amount of air drawn into the engine |
| MAP | Manifold Absolute Pressure | Pressure in the engine intake system after the throttle valve referenced to a perfect vacuum. |
| MDI | Multiple Diagnostics Interface | A device used by GM dealers that enables a PC to communicate with the control modules in a vehicle. |
| MIL | Malfunction Indicator Lamp | An indicator of the internal status of a car engine. |
| MOST | Media Oriented Systems Transport | Serial communication bus to transmit audio and video information. |
| N | Neutral | A state of the transmission in which it is not engaged. |
| NiMH | Nickel Metal Hydride | A type of rechargeable battery that uses a hydrogen absorbing alloy for the negative electrode. |
| NOx | Nitrogen Oxides | Refers to any of the following oxygen compounds of nitrogen or a mixture of them. Nitric Oxide, Nitrogen dioxide, Nitrous Oxide, Dinitrogen trioxide, Dinitrogen tetroxide, Dinitrogen pentoxide. |
| O2 | Oxygen | A colorless, odorless, tasteless, gaseous chemical element with the chemical symbol O and atomic number 8. |
| O2S | Oxygen Sensor | An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed. |
| OBD | On-Board Diagnostic | A generic term referring to a vehicle's self-diagnostic and reporting capability. |
| OEM | Original Equipment Manufacturer | A producer that provides a product to its customers, who proceed to modify or bundle it before distributing it to their customers. |
| OSS | Output Shaft Speed | Rotational speed of the output shaft of a transmission. |
| P | Park | A state in which the transmission is set so one can leave the vehicle. |
| PCB | Printed Circuit Board | A thin plate on which chips and other electronic components are placed. |
| PCM | Powertrain Control Module | A control module that features the functions of both, the engine and the transmission control module. |
| PCMCIA | Personal Computer Memory Card Industry Association | An international standards body and trade association with over 100 member companies that was founded in 1989 to establish standards for Integrated Circuit cards and to promote interchangeability among mobile computers where ruggedness, low power, and small size were critical. |
| PIN | Personal Identification Number | A secret numeric password shared between a user and a system that can be used to authenticate the user to the system. |
| PPE | Personal Protective Equipment | Protective clothing, helmets, goggles, or other garment designed to protect the wearer's body from injury. |
| PRNDL | Park, Reverse, Neutral, Drive, Low | Park, Reverse, Neutral, Drive, Low (automatic transmission positions). |
| PTC | Positive Temperature Coefficient | Refers to materials that experience an increase in electrical resistance when their temperature is raised. |
| PTO | Power Take-Off | A splined driveshaft, usually on a tractor or truck that can be used to provide power to an attachment or separate machine. This mechanism allows implements to draw energy from the tractor's engine. |
| PVC | Polyvinyl Chloride | A thermoplastic copolymer. |
| PWM | Pulse Width Modulation | Square shaped type of signal that carries the information in the ratio between on and off times. |
| R | Reverse | Rearward: directed or moving toward the rear |
| RAM | Random Access Memory | A type of computer data storage. It today takes the form of integrated circuits that allow the stored data to be accessed in any order. |
| RCT | Radiator Coolant Temperature | This is the heat intensity of the radiator coolant measured in degrees. The radiator is a part of the cooling system that removes the engine heat. Coolant is a mixture of water and antifreeze (ethylene glycol) which lowers the freezing point of the water in the coolant system, this fluid also picks up heat from the engine and transfers it to the air. |
| RDS | Radio Data System | A standard from the European Broadcasting Union for sending small amounts of digital information using conventional FM radio broadcasts. |
| RF | Radio Frequency | A frequency or rate of oscillation within the range of about 3 Hz and 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. |
| ROM | Read-Only Memory | A class of storage media used in computers and other electronic devices. Data stored in ROM cannot be modified. |
| RPO | Regular Production Option | A three digit/letter code given to parts, assemblies, and systems originally installed on the vehicle. These RPO codes designate options and are assigned by General Motors. |
| RSA | Rear Seat Audio | An auxiliary set of controls that operate the main audio system from the rear seat. Rear passengers can also operate a different media source than the front passengers. |
| RWD | Rear-Wheel Drive | A common engine/transmission layout in which the engine is in the front of the vehicle, but the front mid-engine, rear mid-engine and rear engine layouts are also used. |
| SCV | Speed Controlled Volume | The volume control is set for a desired sound level in the vehicle as the vehicle increases its speed, the sound level is adjusted. |
| SDM | Sensing and Diagnostic Module | The name given to air bag modules used in General Motors vehicles. |
| SIM | Subscriber Identity Module | Part of a removable smart card Integrated Circuit Card. This is used for mobile cellular telephone devices such as mobile computers and mobile phones. SIM cards securely store the service-subscriber key used to identify a subscriber. The SIM card allows users to change phones by simply removing the SIM card from one mobile phone and inserting it into another mobile phone or broadband telephony device. |
| SIR | Supplemental Inflatable Restraint | Technical term for the air bag. Air bag is a stretchable membrane, which inflates during an automobile accident to provide cushioning to the passenger's head and torso to prevent injury to the passengers. |
| SPI | Serial Peripheral Interface | This is an interface that enables the serial (one bit at a time) exchange of data between two devices. An SPI operates in full duplex mode. This means that data can be transferred in both directions at the same time. It is a standard bus technology like CAN or I2C. |
| SPS | Service Programming System | System that enables repair facilities to update the software in control modules. |
| SUV | Sport Utility Vehicle | A passenger vehicle which combines the towing capacity of a pickup truck with the passenger-carrying space of a minivan. |
| SVS | Service Vehicle Soon | Indicator lamp or symbol for a malfunction related to a vehicle component or system. |
| TA | Traffic Announcement | Message spoken on radio regarding the movement of vehicles or pedestrians through an area or along a route. The buttons on radios that enable this announcements are also often labeled TA. |
| TAC | Throttle Actuator Control | A motor which moves the engine throttle plate or valve, controlled by the engine control module. A throttle plate limits the amount of air entering a internal combustion gasoline engine. |
| TAP | Transmission Adaptive Pressure | The transmission control module learns each component's characteristics and adjusts fluid pressure accordingly. |
| TCC | Torque Converter Clutch | Resides in a torque converter to connect an engine to an automatic transmission. The clutch is applied when conditions are correct to achieve a 1:1 ratio of engine crankshaft to transmission input shaft. |
| TCM | Transmission Control Module | A module that controls electronic automatic transmissions. It uses sensors from the vehicle as well as data provided by the Engine Control Module to calculate how and when to change gears in the vehicle for optimum performance, fuel economy and shift quality. |
| TDC | Top Dead Center | The piston is in its highest position relative to the combustion chamber. |
| TIS | Techline Information System | The PC-based global dealership diagnostic software that provides the technician the ability to reference the most recent service information via the service department's computer. |
| TPA | Terminal Position Assurance | An additional locking mechanism inside an electric connector that holds the pins in place. |
| TV | Television | A telecommunication system for broadcasting and receiving moving pictures and sound over a distance. |
| USB | Universal Serial Bus | A type of communication bus connection between a computer and a peripheral device. |
| VCI | Vehicle Communications Interface | A diagnostic tool that communicates to modules of multiple communication protocols in a vehicle by converting vehicle serial data into PC serial data communication. |
| VIN | Vehicle Identification Number | Used by manufacturers to uniquely identify motor vehicles using 17 characters. |
| VSCM | Vehicle Stability Control Module | This module uses information from several sensors to detect a loss of vehicle traction, then works with the antilock brake system to apply individual brakes to help keep the vehicle on its intended path. |
| VSS | Vehicle Speed Sensor | Sends data regarding how fast the car is traveling at the moment of driving. It is designed to be able to record the rate at which the vehicle's crankshaft is spinning. |
| WOT | Wide Open Throttle | When the throttle blade or valve is at its maximum open position, allowing maximum air to enter an internal combustion gasoline engine. |
| WLAN | Wireless Local Area Network | Standard to transmit digital data via radio frequency. |
| XM | XM (Satellite Radio) | XM Satellite Radio Holdings (XM) is one of two satellite radio services in the United States and Canada. XM provides pay-for-service radio, analogous to cable television. Its service includes 73 different music channels, 39 news, sports, talk, and entertainment channels, 21 regional traffic and weather channels and 23 play-by-play sports channels (2008). |
| XML | Extensible Markup Language | A markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. |
Acronyms
| Unit | Meaning | Definition |
|---|---|---|
| M 2 | Square Meter | Area |
| A | Ampere | Electrical |
| Ah | Ampere Hour | Electrical |
| C | Coulomb | Electrical |
| DBm | Decibel Meter | Electrical |
| DBmV | Decibel Millivolt | Electrical |
| MV/DIV | Millivolts per Division | Electrical |
| MV/s | Millivolts per Second | Electrical |
| Ohms | Ohm | Electrical |
| V | Volt | Electrical |
| V/DIV | Volts per Division | Electrical |
| V/ms | Volts per Millisecond | Electrical |
| W | Watt | Electrical |
| Mm 3 /stroke | Cubic Millimeters per Stroke | Flow |
| Gal/h | Gallons per Hour | Flow |
| G/s | Grams per second | Flow |
| G/stroke | Grams per Stroke | Flow |
| Kg/100km | Kilograms per 100 Kilometer | Flow |
| Kg/h | Kilograms per Hour | Flow |
| Km/L | Kilometer/liter | Flow |
| L/100km | Liters per 100 Kilometers | Flow |
| L/h | Liters per Hour | Flow |
| L/min | Liters per Minute | Flow |
| MPG | Miles per Gallon | Flow |
| Mg/s | Milligrams per Second | Flow |
| Mg/stroke | Milligrams per stroke | Flow |
| Ft | Feet | Length |
| In | Inch | Length |
| M | Meter | Length |
| Mi | Mile | Length |
| Bar | Bar | Mechanical |
| Bar/min | Bars per Minute | Mechanical |
| In. H2O | Inches of Water | Mechanical |
| In. H2O/s | Inches of Water per second | Mechanical |
| KPa/s | Kilopascals per Second | Mechanical |
| N | Newton | Mechanical |
| Newton Meter | Mechanical | |
| Pa | Pascal | Mechanical |
| Pa/s | Pascals per Second | Mechanical |
| Lb ft | Pound Foot | Mechanical |
| PSI | Pound-Force per Square Inch | Mechanical |
| Counts | Counts | Misc. |
| Cycles | Cycles | Misc. |
| DB | Decibel | Misc. |
| ° | Degree | Misc. |
| °C | Degree Centigrade | Misc. |
| °CA | Degree Crankshaft Angle | Misc. |
| °F | Degree Fahrenheit | Misc. |
| °/s | Degree per Second | Misc. |
| Hz | Hertz | Misc. |
| Kbit/s | Kilobit per second | Misc. |
| Lx | Lux | Misc. |
| Ppm | Parts per Million | Misc. |
| % | Percent | Misc. |
| %/min | Percents per Minute | Misc. |
| %/sec | Percents per Second | Misc. |
| Pulses | Pulses | Misc. |
| 1 | Ratio | Misc. |
| RPM | Revolutions per Minute | Misc. |
| Steps | Steps | Misc. |
| W/m 2 | Watts per Square Meter | Misc. |
| G | G (Acceleration) | Movement |
| Km/h | Kilometers per Hour | Movement |
| M/s | Meters per Second | Movement |
| M/s 3 | Meters per Second Cubed | Movement |
| M/s 2 | Meters per Second Squared | Movement |
| MPH | Miles per Hour | Movement |
| Mm/s | Millimeters per Second | Movement |
| D | Day | Time |
| H | Hour | Time |
| Hh:mm:ss | Hour:Minute:Second | Time |
| Ms/DIV | Milliseconds per Division | Time |
| Min | Minute | Time |
| S | Second | Time |
| S/DIV | Seconds per Division | Time |
| Yy-mm-dd | Year-Month-Day (2 digits) | Time |
| Yyyy-mm-dd | Year-Month-Day (4 digits, preferred) | Time |
| M 3 | Cubic Meter | Volume |
| Gal | Gallon | Volume |
| L | Liter | Volume |
| ML | Milliliters | Volume |
| US gal | US Gallon | Volume |
| US pt | US Pint | Volume |
| US qt | US Quart | Volume |
| Kg | Kilogram | Weight |
Units
Customer Concern Verification Sheets
The GM Customer Concern Verification Sheets have been designed to improve communications between the service customer and the technician. The more clearly the technician understands the concern and its symptoms, the more likely the concern will be fixed right the first time.
The GM-wide Customer Concern Verification Sheets are available in GM GlobalConnect. The Customer Concern Verification Sheets may be printed and reproduced locally.
Dealers
All U.S. GM Dealers participating in the Center of Learning / GM Service Technical College (STC) Programs can enroll through the Center of Learning website at https://www.centerlearning.com. Within the website, there are individual training paths that are designed to assist in planning the training needs for each individual and their job role. Dealers who have questions about Center of Learning Training should contact the Center of Learning help desk at 1-888-748-2687. The help desk is available Monday through Friday, 8:00 am - 9:00 pm Eastern Standard Time, excluding holidays. For GM Access support, contact the GM Access Help Desk at 1-888-337-1010.
Fleets
GM Fleet customers with GM Warranty In-Shop agreements are able to participate in service technical training through the Center of Learning/GM Service Technical College (STC).
Assistance for GM fleet registered customers using GM STC training is provided by the Center of Learning help desk at 1-888-748-2687. The help desk is available Monday through Friday, 8:00 am-9:00 pm Eastern Standard Time, excluding holidays. For GM Access support, contact the GM Access Help Desk at 1-888-337-1010.
Most GM STC course materials have associated charges.
To purchase authentic GM STC Training Materials, contact the GM Training Materials Headquarters at 1-800-393-4831.
Non-GM Dealer Technicians
Technician training for non-GM dealers is available through ACDelco. This training is for ACDelco PSC and Fleet program members employed in the automotive or truck service industry.
ACDelco courses are available at approved GM STC Training Centers. Availability and schedules can be obtained by calling 1-800-825-5886 (prompt 1) or contact us via the web at www.acdelcotechconnect.com and select the Training tab. Seminars are also offered through the ACDelco Warehouse Distribution channel. Contact your Local ACDelco representative or distributor directly for more information.
Scheme 2
The VIN plate is the legal identifier of the vehicle. The VIN plate (1) is located on the upper left corner of the instrument panel (I/P) and can be seen through the windshield from the outside of the vehicle
| Position | Definition | Character | Description |
|---|---|---|---|
| 1 | Country of Origin | 1 | U.S.A. |
| 2 | Manufacturer | G | General Motors |
| 3 | Make | C | Chevrolet Truck |
| T | GMC Truck | ||
| 4 | GVWR/Brake System/Body Style | L | 6, 001-7, 000 lbs/Hydraulic/Cargo or Passenger Van |
| N | 6, 001-7, 000 lbs/Hydraulic/Commercial Van or RV Cutaway | ||
| S | 7, 001-8, 000 lbs/Hydraulic/Cargo or Passenger Van | ||
| W | 8, 001-9, 000 lbs/Hydraulic/Cargo or Passenger Van | ||
| Y | 8, 001-9, 000 lbs/Hydraulic/Commercial Van or RV Cutaway | ||
| Z | 9, 001-10, 000 lbs/Hydraulic/Cargo or Passenger Van | ||
| 0 | 9, 001-10, 000 lbs/Hydraulic/Commercial Van or RV Cutaway | ||
| 3 | 10, 001-14, 000 lbs/Hydraulic/Commercial Van or RV Cutaway | ||
| 6 | 14, 001-16, 000 lbs/Hydraulic/Commercial Van or RV Cutaway | ||
| 5 | Chassis | G | Express 4x2 |
| H | Express 4x4 | ||
| 7 | Savana 4x2 | ||
| 8 | Savana 4x4 | ||
| 6 | Series | A | 1500 Cargo - 135" Wheelbase |
| B | 1500 Passenger LS - 135" Wheelbase | ||
| C | 1500 Passenger LT - 135" Wheelbase | ||
| D | 1500 Conversion 3LT - 135" Wheelbase | ||
| E | 1500 Conversion 4LT - 135" Wheelbase | ||
| F | 2500 Cargo - 135" Wheelbase | ||
| G | 2500 Cargo Ext - 155" Wheelbase | ||
| H | 2500 Paratransit - 135" Wheelbase | ||
| J | 2500 Paratransit Ext - 155" Wheelbase | ||
| K | 2500 Conversion 3LT - 135" Wheelbase | ||
| L | 2500 Conversion Ext 3LT - 155" Wheelbase | ||
| M | 2500 Conversion 4LT - 135" Wheelbase | ||
| N | 2500 Conversion Ext 4LT - 155" Wheelbase | ||
| P | 2500 Passenger LS - 135" Wheelbase | ||
| R | 2500 Passenger LT - 135" Wheelbase | ||
| S | 2500 Mobility - 135" Wheelbase | ||
| T | 3500 Cargo - 135" Wheelbase | ||
| U | 3500 Cargo Ext - 155" Wheelbase | ||
| V | 3500 Paratransit - 135" Wheelbase | ||
| W | 3500 Paratransit Ext - 155" Wheelbase | ||
| X | 3500 Passenger LS - 135" Wheelbase | ||
| Y | 3500 Passenger LT - 135" Wheelbase | ||
| Z | 3500 Passenger LS Ext - 155" Wheelbase | ||
| 1 | 3500 Passenger LT Ext - 155" Wheelbase | ||
| 2 | 3500 Cutaway - 139" Wheelbase | ||
| 3 | 3500 Cutaway - 159" Wheelbase | ||
| 4 | 3500 Cutaway - 177" Wheelbase | ||
| 5 | 4500 Cutaway - 159" Wheelbase | ||
| 9 | Export - Non US, Non Canada | ||
| 7 | Restraint System | B | Active Manual Belts, Airbag - Driver only - Front |
| C | Active Manual Belts, Airbag - Driver and Passenger - Front (1st row) | ||
| D | Active Manual Belts, Airbags - Driver and Passenger - Front (1st row), Front Seat Side (1st row) | ||
| E | Active Manual Belts, Airbags - Driver and Passenger Front (1st row), Front Seat Side (1st row), Roof Side (All seating rows) | ||
| F | Active Manual Belts, Airbags - Driver and Passenger - Front (1st row) and Roof Side (All seating rows for vehicles with 3 or fewer seating rows; 1st, 2nd and 3rd row for vehicles with 4 or more seating rows) | ||
| H | Active Manual Belts, Airbag - Driver only - Front, Roof Side (All seating rows for vehicles with 3 or fewer seating rows; 1st, 2nd and 3rd row for vehicles with 4 or more seating rows) | ||
| 8 | Engine Type | A | RPO L20, Flexible Fuel, Gas/ALC, 8 Cylinder, 4.8L, SFI, Iron, GM |
| B | RPO LC8, Flexible Fuel, (CNG/LPG), 8 Cylinder, V8, 6.0L, SFI, GE N1, GMNA | ||
| G | RPO L96, Flexible Fuel, Gas/ALC, 8 Cylinder, 6.0L SFI, Iron, GM | ||
| L | RPO LGH, Diesel, 8 Cylinder, 6.6L, DI, V8, Turbo, Duramax | ||
| 8 | RPO LML, Diesel, 8 Cylinder, 6.6L, DI, V8, Dual Turbo, Duramax | ||
| 4 | RPO LMF, Flexible Fuel, Gas/ALC, 8 Cylinder, 5.3L, SFI, V8, OHV, Iron, GM | ||
| X | RPO LU3, Gas, 6 Cylinder, 4.3L, MFI, V6, 90 Degree | ||
| 9 | Check Digit | Check Digit | |
| 10 | Model Year | E | 2014 |
| 11 | Plant Location | 1 | Wentzville, MO |
| 12-17 | Plant Sequence Number | Plant Sequence Number |
Vehicle Identification Number (VIN) System
All engines and transmissions are stamped or laser etched with a partial VIN, which was derived from the complete VIN. A VIN derivative contains the following 9 positions
| Position | Definition | Character | Description |
|---|---|---|---|
| 1 | GM Division Identifier | G | General Motors |
| 2 | Model Year | E | 2014 |
| 3 | Assembly Plant | 1 | Wentzville MO |
| 4-9 | Plant Sequence Number | 100, 001 | Plant Sequence Number |
| 4-9 | Plant Sequence Number | 900, 001 | Pre-Assigned |
VIN Derivative
4.3L RPO LU3 Engine ID and VIN Derivative Location
Refer to Engine Identification .
4.8L RPO L20, 5.3L RPO LMF, and 6.0L RPO L96 Engine ID and VIN Derivative Location
Refer to Engine Identification .
6.6L RPO LGH and LML Engine ID and VIN Derivative Location
Refer to Engine Identification .
4L60-E Transmission ID and VIN Derivative Location
Refer to Transmission Identification Information .
6L90 Transmission ID and VIN Derivative Location
Refer to Transmission Identification Information .
Scheme 3
| Callout | Description |
|---|---|
| Vehicle Certification Label The vehicle certification label is located on the driver door and displays the following assessments: Gross Vehicle Weight Rating (GVWR) Gross Axle Weight Rating (GAWR), front and rear The gross vehicle weight (GVW) is the weight of the vehicle and everything it carries. The GVW must not exceed the GVWR. Include the following items when figuring the GVW: The base vehicle weight (factory weight) The weight of all vehicles accessories The weight of the driver and the passengers The weight of the cargo | |
| 1 | Name of Manufacturer |
| 2 | Gross Vehicle Weight Rating |
| 3 | Gross Axle Weight Rating (FRONT, REAR) |
| 4 | Canadian Safety Mark (w/RPO Z49) |
| 5 | Certification Statement |
| 6 | Vehicle Class Type (Pass Car, etc.) |
| 7 | Vehicle Identification Number |
| 8 | Date of Manufacture (Mo/Yr) |
| Tire Placard The tire placard label is located on the driver door and displays the following assessments | |
| 9 | Specified Occupant Seating Positions |
| 10 | Maximum Vehicle Capacity Weight |
| 11 | Tire Pressure, Front, Rear, and Spare (Cold) |
| 12 | Original Equipment Tires Size |
| Service Parts ID Label The vehicle service parts identification label is located in the rear compartment under the spare tire cover. The label is use to help identify the vehicle original parts and options. | |
| 13 | Vehicle Identification Number |
| 14 | Engineering Model Number (Vehicle Division, Line and Body Style) |
| 15 | Interior Trim Level and Decor |
| 16 | Exterior (Paint Color) WA Number |
| 17 | Paint Technology |
| 18 | Special Order Paint Colors and Numbers |
| 19 | Vehicle Option Content |
| Anti-Theft Label | |
| 20 | The Federal law requires that General Motors label certain body parts on this vehicle with the VIN. The purpose of the law is to reduce the number of motor vehicle thefts by helping in the tracing and recovery of parts from stolen vehicles. Labels are permanently affixed to an interior surface of the part. The label on the replacement part contains the letter R, the manufacture's logo, and the DOT symbol. The anti-theft label must be covered before any painting, and rust-proofing procedures, and uncovered after the procedures. Failure to follow the precautionary steps may result in liability for violation of the Federal Vehicle Theft Prevention Standard and possible suspicion to the owner that the part was stolen. |
Vehicle Certification, Tire Placard, Anti-Theft, and Service Parts ID Label
RPO Code List
The production/process codes provide the description of the regular production options (RPOs). The RPO list is printed on the Service Parts Identification Label.
| RPO | Description |
|---|---|
| 01U | PRIMARY COLOR EXTERIOR, SPECIAL (96) |
| 15U | PRIMARY COLOR EXTERIOR, CASHMERE METALLIC (04) |
| 16U | PRIMARY COLOR EXTERIOR, GRAYSTONE METALLIC (213M) |
| 25U | PRIMARY COLOR EXTERIOR, DARK MING BLUE (02) |
| 40P | WHEEL COLOR - WHITE (91) |
| 41U | PRIMARY COLOR EXTERIOR, BLACK (97) |
| 47U | PRIMARY COLOR EXTERIOR, MEDIUM GREEN PEARL METALLIC (02) |
| 50U | PRIMARY COLOR EXTERIOR, OLYMPIC WHITE (93) |
| 52G | TRIM COMBINATION CLOTH, MEDIUM NEUTRAL II (G) (00) |
| 52I | INTERIOR TRIM LIGHT NEUTRAL (I) (96) |
| 52W | TRIM COMBINATION VINYL, MEDIUM NEUTRAL II (W) (00) |
| 74U | PRIMARY COLOR EXTERIOR, VICTORY RED (96) |
| 86U | PRIMARY COLOR-EXTERIOR, WHEATLAND YELLOW (02) 253A |
| 93G | TRIM COMBINATION CLOTH, MEDIUM DARK PEWTER II (G) (03) (GMT610 - G VAN) |
| 93I | INTERIOR TRIM MEDIUM DARK PEWTER II (03) (GMT610 - G VAN) |
| 93W | TRIM COMBINATION VINYL, MEDIUM DARK PEWTER II (W) (03) (GMT610 - G VAN) |
| 9N2 | GVW RATING-10, 050 LBS |
| A07 | WINDOW - BODY |
| A08 | WINDOW - BODY, RIGHT |
| A12 | WINDOW REAR - DOOR, STA |
| A13 | WINDOW SIDE DOOR - REAR, STA |
| A17 | WINDOW SIDE BODY - SWING OUT, LEFT |
| A18 | WINDOW REAR - DOOR, SWING OUT |
| A19 | WINDOW SIDE DOOR - REAR, SWING OUT |
| A31 | WINDOW - POWER OPERATED, ALL DOORS |
| AG1 | ADJUSTER FRONT SEAT - POWER, MULTI-DIRECTIONAL, DRIVER |
| AG2 | ADJUSTER PASSENGER SEAT - POWER, MULTI-DIRECTIONAL |
| AJ1 | WINDOW TINTED - DEEP, ALL EXCEPT WINDSHIELD AND DOORS |
| AJ3 | RESTRAINT SYSTEM - SEAT, INFLATABLE, DRIVER |
| AK5 | RESTRAINT SYSTEM - SEAT, INFLATABLE, DRIVER AND PASSENGER |
| AL0 | SENSOR INDICATOR - INFLATABLE RESTRAINT, FRONT PASSENGER/CHILD PRESENCE DETECTOR |
| ANC | SALES PACKAGE SHUTTLE BUS |
| AR7 | SEAT - FRONT BUCKET, STANDARD |
| ASF | RESTRAINT - ROOF SIDE, LEFT AND RIGHT, INFLATABLE |
| AS5 | SEAT - FRONT BUCKET, DELUXE |
| AT8 | RESTRAINT PROVISION CHILD, REAR SEAT, REAR FACING |
| ATG | LOCK CONTROL, ENTRY - REMOTE ENTRY, STANDARD RANGE |
| AU3 | LOCK CONTROL - SIDE DOOR, ELECTRIC |
| AXK | VEHICLE TYPE - TRUCK |
| AXP | VIN IDENTIFICATION - POSITION, MULTI-PURPOSE VEHICLE |
| AXW | VEHICLE TYPE - BUS (NOT SCHOOL BUS) |
| B30 | COVERING FLOOR - CARPET |
| B31 | COVERING FLOOR - VINYL, FRONT, FULL WIDTH |
| B32 | COVERING FRONT - FLOOR MATS, AUXILIARY |
| B33 | COVERING REAR - FLOOR MATS, AUXILIARY |
| B38 | COVERING FLOOR - VINYL, FRONT AND REAR, FULL WIDTH |
| B3D | EQUIPMENT - SCHOOL BUS |
| B46 | TRIM EQUIPMENT - SPECIAL ORDER |
| BA0 | ORNAMENTATION - EXTERIOR, DOOR, NAMEPLATE |
| BA3 | COMPARTMENT - STOWAGE, I/P LOWER EXTENSION DELUXE |
| BAG | PARTS PACKAGE - EXPORT |
| BG5 | COVERING FLOOR - DELETE |
| BNC | PARTS PACKAGE - BODY MOUNT CUSHIONS |
| BTV | REMOTE START - ENGINE |
| BUE | KIT EXHAUST DIESEL |
| C36 | HEATER - AUXILIARY |
| C4K | GVW RATING-9, 925 LBS |
| C4M | GVW RATING 4 500 KG (9, 900 LB) |
| C42 | HVAC SYSTEM - HEATER, OUTSIDE AIR, DELUXE |
| C49 | DEFOGGER - REAR WINDOW, ELECTRIC |
| C6A | GVW RATING 7, 300 LBS |
| C6P | GVW RATING - 8, 600 LBS/3 900 KG |
| C6Y | GVW RATING - 9, 600 LBS |
| C60 | HVAC SYSTEM - AIR CONDITIONER FRONT, MANUAL CONTROLS |
| C69 | HVAC SYSTEM REAR - AIR CONDITIONER |
| C7A | GVW RATING 10, 000 LBS |
| C7I | GVW RATING 14, 200 LBS |
| C7N | GVW RATING 12, 300 LBS |
| C7Q | GVW RATING 4 000 KG (8, 800 LB) |
| C8V | GVW RATING 13, 980 LBS |
| C99 | SWITCH INFLATABLE RESTRAINT, INSTRUMENT PANEL MODULE MANUAL SUPPRESSION |
| CEI | CERTIFICATION CERTIFICATION, EMISSION, GEOGRAPHICALLY RESTRICTED REGION FOR VEHICLES OVER 14, 000 LBS GVW |
| CEJ | CERTIFICATION EMISSION, FEDERAL FOR VEHICLES OVER 14, 000 LBS GVW |
| CU7 | COUNTRY - KUWAIT |
| CU8 | COUNTRY - SAUDI ARABIA |
| CV3 | COUNTRY - MEXICO |
| CV4 | COUNTRY - ISREAL |
| CW2 | COUNTRY - GULF AREAS |
| CW3 | COUNTRY - ASIA/PACIFIC |
| CW5 | COUNTRY - VENEZUELA |
| CW6 | COUNTRY - GUAM |
| CW9 | COUNTRY - MISC |
| D28 | MIRROR OUTSIDE - DELETE |
| D31 | MIRROR INSIDE REARVIEW TILT (DUPLICATE WITH D36) |
| DAA | SUNSHADE VINYL |
| DE2 | MIRROR OUTSIDE - LEFT AND RIGHT, MANUAL CONTROL, FOLDING, COLOR |
| DE5 | MIRROR OUTSIDE - LEFT AND RIGHT, REMOTE CONTROL, ELECTRIC, HEATED, FOLDING, COLOR |
| DE7 | MIRROR OUTSIDE - LEFT AND RIGHT, REMOTE CONTROL, ELECTRIC, HEATED, LIGHT SENSITIVE, MANUAL FOLDING, TURN SIGNAL INDICATOR, COLOR |
| DHC | MIRROR OUTSIDE - LEFT AND RIGHT, MANUAL CONTROL, AUX WFOV, COLOR |
| DH6 | MIRROR INSIDE FRONT VANITY LEFT AND RIGHT, SUNSHADE, ILLUMINATED |
| DNS | EQUIPMENT - SUPPLIER INSTALLED |
| DT4 | ASHTRAY - CIGARETTE LIGHTER |
| E24 | DOOR SIDE - REAR, HINGED |
| E26 | DOOR SIDE REAR LEFT - HINGED |
| E3T | HANDLE - INSIDE, DOOR RELEASE |
| E48 | COVER - RADIATOR GRILLE OPG - COLD CLIMATE |
| EF7 | COUNTRY-UNITED STATES OF AMERICA (USA) |
| ENC | HVAC PROVISIONS - AUXILIARY HEATER PLUMBING AND WIRING |
| EVA | TEST - DVT, EVAP EMISSION REQUIREMENT |
| EXP | EXPORT |
| FAS | ACCESSORY-NAVIGATION SYSTEM - PORTABLE - LEVEL 2 |
| FAW | ACCESSORY-NAVIGATION SYSTEM - PORTABLE - LEVEL 3 |
| FE9 | CERTIFICATION - EMISSION FEDERAL |
| FHO | VEHICLE FUEL - GASOLINE E10 |
| FHS | VEHICLE FUEL - GASOLINE E85 |
| FHX | VEHICLE FUEL - DIESEL B20 |
| FHZ | VEHICLE FUEL - DEDICATED CNG |
| G7K | EQUIPMENT - ANTENNA, CABLE AND GROUNDPLATE |
| G80 | AXLE POSITRACTION - LIMITED SLIP |
| GGZ | PRIMARY COLOR EXTERIOR, SHEER SILVER METALLIC |
| GH0 | AXLE REAR 3.54 RATIO |
| GT4 | AXLE REAR 3.73 RATIO |
| GT5 | AXLE REAR 4.10 RATIO |
| GU6 | AXLE REAR 3.42 RATIO |
| JFF | GVW RATING-10, 100 LBS |
| JH5 | BRAKE HYDRAULIC POWER, 4 WHEEL DISC, 7, 200 LBS |
| JH6 | BRAKE HYDRAULIC POWER, 4 WHEEL DISC, 9, 900 LBS |
| JH9 | BRAKE HYDRAULIC POWER, 4 WHEEL DISC, 14, 050 LBS |
| JL4 | CONTROL - ACTIVE BRAKE |
| K05 | HEATER ENGINE - BLOCK |
| K08 | HEATER - AUXILIARY, FUEL FIRED |
| K34 | CRUISE CONTROL - AUTOMATIC, ELECTRONIC |
| K50 | FUEL - FITTING, LINE TAKE-OFF |
| K68 | GENERATOR - 105 AMP |
| KC4 | COOLING SYSTEM - ENGINE OIL |
| KD1 | COOLING SYSTEM - TRANSMISSION, OIL |
| KD9 | GENERATOR 145 AMP, DUAL |
| KG3 | GENERATOR 145 AMP |
| KG7 | GENERATOR 125 AMP |
| KO7 | VEHICLE FUEL - LIQUEFIED PETROLEUM GAS, LIQUID - (PROPANE AND PROPANE / BUTANE BLENDS) |
| KUP | THROTTLE CONTROL - ELECTRONIC |
| L20 | ENGINE FLEXIBLE FUEL, GAS/ETHANOL, 8 CYLINDER, 4.8L, SFI IRON, GM |
| L96 | ENGINE FLEXIBLE FUEL, GAS/ETHANOL, 8 CYLINDER, 6.0L, SFI IRON, GM |
| LC8 | ENGINE - LPG / CNG, 8 CYL, V8, 6.0L, SFI, GEN 1, GMNA |
| LGH | ENGINE DIESEL, 8 CYLINDER, 6.6L, DI, V8, TURBO, DURAMAX |
| LMF | ENGINE FLEXIBLE FUEL, (GAS/ALC) 8 CYLINDER, 5.3L, SFI, V8, OHV, IRON, GM |
| LU3 | ENGINE GAS, 6 CYLINDER, 4.3L, MFI, V6, 90 DEGREE |
| M30 | TRANSMISSION AUTOMATIC 4 SPEED, HMD, 4L60-E, ELECTRONIC |
| MTF | PROVISIONS - FIRE EXTINGUISHER MOUNTING |
| MYD | TRANSMISSION - AUTOMATIC 6 SPEED, HMD, 6L90 |
| N12 | EXHAUST SYSTEM - REAR EXIT |
| N33 | STEERING COLUMN - TILT TYPE |
| N88 | WHEEL 17 X 7.5, ALUMINUM, PREMIUM |
| NB8 | EMISSION OVERRIDE - CALIFORNIA SYSTEM |
| NCF | LOCK - CHILD SECURITY FEATURE - DELETE |
| NC7 | EMISSION OVERRIDE - FEDERAL SYSTEM |
| NC8 | EMISSION SYSTEM CALIFORNIA, ULEV |
| NE1 | CERTIFICATION - EMISSION, GEOGRAPHICALLY RESTRICTED REGISTRATION FOR VEHICLES UP TO 14, 000 LBS GVW |
| NE7 | FUEL TANK - 227 L, 57 GAL |
| NPL | PLATE NAME - DELETE |
| NP5 | STEERING WHEEL - LEATHER WRAPPED |
| NT7 | EMISSION SYSTEM - FEDERAL, TIER 2 |
| NUA | EMISSION SYSTEM - CALIFORNIA, 150K, LEV 2 |
| NU4 | EMISSION SYSTEM - CALIFORNIA LEVEL 2 PLUS |
| NU5 | EMISSION SYSTEM CALIFORNIA, BIN 4 |
| NX7 | WHEEL 17 X 7.5, STEEL |
| NZ4 | WHEEL SPARE - FULL SIZE, 17" STEEL |
| P03 | COVER, WHEEL - VAR 3 |
| P46 | WHEEL 17 X 7.5, ALUMINUM, UPLEVEL |
| PNC | PANEL - TRIM, FRONT DOORS AND SIDE REAR DOOR(S) AND REAR DOORS |
| PPC | PANEL - TRIM, REAR DOORS |
| PRP | SALES PACKAGE - COMMERCIAL TRADESMAN |
| QB5 | WHEEL 16 X 6.5, STEEL |
| QT4 | WHEEL 16 X 6.5, STEEL H.D. |
| R04 | WHEEL CONFIGURATION - REAR, SINGLE |
| R05 | WHEEL CONFIGURATION - REAR, DUAL |
| R25 | APPEARANCE PACKAGE - EXTERIOR, CHROME GRILLE AND PAINTED BUMPER |
| R26 | APPEARANCE PACKAGE - EXTERIOR, CHROME GRILLE AND FRONT BUMPER |
| T62 | LAMP SYSTEM - DAYTIME RUNNING - DELETE |
| T74 | HEADLAMPS CONTROL AUTOMATIC, DELAY |
| TGA | LANGUAGE CONTROL - ENGLISH, FRENCH, SPANISH |
| TGG | LANGUAGE CONTROL - ENGLISH, ARABIC, FRENCH |
| TR9 | LAMP GROUP |
| U05 | HORN - DUAL |
| U1C | RADIO - AM/FM STEREO, SEEK/SCAN, CD, CLOCK, ETR |
| U19 | SPEEDOMETER - INSTRUMENT, KILOMETERS AND MILES, KILOMETER ODOMETER |
| U2J | DIGITAL AUDIO SYSTEM S-BAND, NOT INSTALLED |
| U2K | DIGITAL AUDIO SYSTEM - S-BAND |
| U73 | ANTENNA - FIXED, RADIO |
| U74 | ANTENNA - RADIO - DELETE |
| U80 | DISPLAY - COMPASS |
| UA1 | BATTERY - HIGH CAPACITY, WET |
| UA7 | THEFT DETERRENT SYSTEM - EXPORT SPECIFIC, VAR 2 |
| UC2 | SPEEDOMETER - INSTRUMENT, KILOMETER AND MILES, KILOMETER ODOMETER, POSITIVE BIAS |
| UD4 | ALARM - VEHICLE SPEED, 120 KM/H |
| UD7 | PARK ASSIST-REAR |
| UE0 | COMMUNICATION SYSTEM - VEHICLE, G.P.S. - NONE |
| UE1 | COMMUNICATION SYSTEM - VEHICLE, G.P.S. 1 |
| UFA | DISPLAY - OUTSIDE TEMPERATURE |
| UFM | PARTS PKG - COMPLETE VEHICLE KIT, 3 TANK |
| UFP | PARTS PKG - COMPLETE VEHICLE KIT, 4TANK |
| UF2 | LAMP - CARGO |
| UF3 | SWITCH - HIGH IDLE |
| UJM | TIRE PRESSURE INDICATOR MANUAL LEARN |
| UJ1 | INDICATOR - SYSTEM, BRAKE WARNING |
| UL2 | FREQUENCIES-EUROPEAN |
| UL5 | RADIO - DELETE |
| UL8 | FREQUENCIES - SAUDI ARABIAN |
| UM7 | RADIO AM/FM STEREO, SEEK/SCAN, CLOCK, ETR |
| UPF | WIRELESS INTERFACE - SHORT RANGE, VOICE REC |
| US8 | RADIO - AM/FM STEREO, SEEK/SCAN, CD, AUTO TONE, CLOCK, ETR, MP3, RDS |
| USR | RECEPTACLE - USB |
| UVC | CAMERA-REAR VIEW |
| UXZ | RADIO - PROVISIONS FOR |
| UY7 | WIRING HARNESS - TRUCK TRAILER, HD |
| UYS | RADIO-AM/FM STEREO, NAV, DVD-ROM, CAF, HDD, USB, RSA, RSE (GMNA VERSION) |
| V10 | PROVISION OPTIONS - COLD WEATHER |
| V14 | COOLER - OIL, TRANSMISSION, AUXILIARY |
| V22 | GRILLE - RADIATOR, CHROME |
| V37 | BUMPER - FRONT AND REAR, CHROME |
| V46 | BUMPER FRONT - CHROME |
| V4D | CALIBRATION - SEPARATED STOP/TURN SIGNAL CIRCUITS |
| V8D | VEHICLE STATEMENT - US |
| V8I | VEHICLE STATEMENT-ISRAEL |
| VBX | LANGUAGE LABEL - ARABIC |
| VC5 | LABEL - SHIPPING, EXCEPT US, US POSSESSIONS, OR JAPAN |
| VC7 | LABEL - PRICE/FUEL ECONOMY, GUAM |
| VG8 | VEHICLE - LABEL, NOTICE TO BUYER |
| VH6 | BUMPER FRONT - BLACK |
| VJG | BUMPER REAR - BLACK |
| VK3 | LICENSE PLATE FRONT - FRONT MOUNTING PACKAGE |
| VK5 | SEAT - TEMPORARY, FOR SHIPPING |
| VPH | VEHICLE PREPARATION - OVERSEAS DELIVERY |
| VP6 | NOISE CONTROL |
| VR4 | TRAILER HITCH - WEIGHT DISTRIBUTING PLATFORM |
| VR6 | HOOK - TIE-DOWN SHIPPING |
| VT7 | OWNERS MANUAL - ENGLISH LANGUAGE |
| WEN | PLANT CODE - WENTZVILLE, MO, USA |
| W1Y | CONTROL - STEERING WHEEL, RADIO, REDUNDANT CONTROLS |
| XEC | TIRE FRONT LT215/85R16/E BW R/ST ST TL HWY |
| XHF | TIRE FRONT - LT225/75R16/E BL R/PE ST ALS |
| XHH | TIRE FRONT - LT245/75R16/E BW R/PE ST TL ALS 120Q |
| XL7 | FREQUENCIES RATING - 315 MHZ, LONG DISTANCE |
| XLP | TIRE FRONT - LT245/75R16/E BW R/PE ST TL ALS 120/116S |
| XPR | TIRE FRONT P245/70R17-108S BW TL ST ALS |
| X88 | MARKET BRAND - CHEVROLET |
| Y3H | MERCHANDISED PACKAGE - HANDICAPPED, MOBILITY, PARATRANSIT |
| YA2 | DOOR SIDE - REAR, SLIDING |
| YB9 | PAINT PROCESS - INTERIOR - DELETE |
| YC6 | PACKAGE, CONVENIENCE - DECOR LEVEL 6 |
| YEC | TIRE REAR LT215/85R16/E BW R/ST ST TL HWY |
| YF1 | SALES PACKAGE - CUTAWAY UPFITTER |
| YF2 | SALES PACKAGE - AMBULANCE UPLIFTER |
| YF5 | CERTIFICATION - EMISSION, CALIFORNIA |
| YF7 | SALES PACKAGE - RECREATIONAL VEHICLE, UPFITTER |
| YHF | TIRE REAR - LT225/75R16/E BL R/PE ST ALS |
| YHH | TIRE REAR - LT245/75R16/E BW R/PE ST TL ALS 120Q |
| YLP | TIRE REAR - LT245/75R16/E BW R/PE ST TL ALS 120/116S |
| YPR | TIRE REAR P245/70R17-108S BW TL ST ALS |
| Z49 | COUNTRY - CANADA |
| Z82 | TRAILER PROVISIONS - SPECIAL EQUIPMENT, H.D. |
| Z88 | MARKET BRAND - GMC |
| ZEC | TIRE SPARE LT215/85R16/E BW R/ST ST TL HWY |
| ZHF | TIRE SPARE - LT225/75R16/E BL R/PE ST ALS |
| ZHH | TIRE SPARE - LT245/75R16/E BW R/PE ST TL ALS 120Q |
| ZLP | TIRE SPARE - LT245/75R16/E BW R/PE ST TL ALS 120/116S |
| ZPR | TIRE SPARE P245/70R17-108S BW TL ST ALS |
| ZP0 | SEATING ARRANGEMENT - TEMPORARY DRIVER |
| ZP3 | SEATING ARRANGEMENT 15 PASSENGER |
| ZP8 | SEATING ARRANGEMENT 8 PASSENGER |
| ZQ2 | SALES PACKAGE - DRIVER CONVENIENCE |
| ZQ3 | SALES PACKAGE - DRIVER CONVENIENCE II |
| ZR7 | APPEARANCE PACKAGE - GRILLE AND BUMPER CHROME |
| ZW2 | WINDOW PACKAGE - REAR DOORS |
| ZW3 | WINDOW PACKAGE - REAR DOORS, SIDE REAR DOOR |
| ZW4 | WINDOW PACKAGE - RIGHT SIDE, REAR DOORS |
| ZW6 | WINDOW PACKAGE - COMPLETE BODY |
| ZW9 | BODY EQUIPMENT - BASE BODY OR CHASSIS |
| ZX1 | SEATING ARRANGEMENT - DRIVER ONLY, HIGH BACK |
| ZX2 | SEATING ARRANGEMENT - DRIVER AND PASSENGER, HIGH BACK |
| ZX5 | SEATING ARRANGEMENT - 12 PASSENGER |
| ZX9 | TIRE SPARE - WITH WHEEL - DELETE |
| ZY1 | COLOR COMBINATION SOLID |
RPO Code List
Metric Fasteners
This vehicle provides fastener dimensions using the metric system. Most metric fasteners are approximate in diameter to equivalent English fasteners. Make replacements using fasteners of the same nominal diameter, thread pitch, and strength.
A number marking identifies the OE metric fasteners except cross-recess head screws. The number also indicates the strength of the fastener material. A Posidrive® or Type 1A cross-recess identifies a metric cross-recess screw. For best results, use a Type 1A cross-recess screwdriver, or equivalent, in Posidrive® recess head screws.
GM Engineering Standards and North American Industries have adopted a portion of the ISO-defined standard metric fastener sizes. The purpose was to reduce the number of fastener sizes used while retaining the best thread qualities in each thread size. For example, the metric M6.0 X 1 screw, with nearly the same diameter and 25.4 threads per inch replaced the English 1/4-20 and 1/4-28 screws. The thread pitch is midway between the English coarse and fine thread pitches.
Scheme 4
| Callout | Component Name |
|---|---|
| 1 | English Bolt, Grade 2 (Strength Class) |
| 2 | English Bolt, Grade 5 (Strength Class) |
| 3 | English Bolt, Grade 7 (Strength Class) |
| 4 | English Bolt, Grade 8 (Strength Class) |
| 5 | Metric Nut, Strength Class 9 |
| 6 | Metric Bolts, Strength Class Increases as Numbers Increase |
The most commonly used metric fastener strength property classes are 9.8 and 10.9. The class identification is embossed on the head of each bolt. The English, inch strength classes range from grade 2 to grade 8. Radial lines are embossed on the head of each bolt in order to identify the strength class. The number of lines on the head of the bolt is 2 lines less than the actual grade. For example, a grade 8 bolt will have 6 radial lines on the bolt head. Some metric nuts are marked with a single digit strength identification number on the nut face.
The correct fasteners are available through GM SPO. Many metric fasteners available in the aftermarket parts channels are designed to metric standards of countries other than the United States, and may exhibit the following
- Lower strength
- No numbered head marking system
- Wrong thread pitch
The metric fasteners on GM products are designed to new, international standards. The following are the common sizes and pitches, except for special applications
- M6.0 X 1
- M8 X 1.25
- M10 X 1.5
- M12 X 1.75
- M14 X 2.00
- M16 X 2.00
Prevailing Torque Fasteners
Prevailing torque fasteners create a thread interface between the fastener and the fastener counterpart in order to prevent the fastener from loosening.
All Metal Prevailing Torque Fasteners
These fasteners accomplish the thread interface by a designed distortion or deformation in the fastener.
Nylon Interface Prevailing Torque Fasteners
These fasteners accomplish the thread interface by the presence of a nylon material on the fastener threads.
Adhesive Coated Fasteners
These fasteners accomplish the thread interface by the presence of a thread-locking compound on the fastener threads. Refer to the appropriate repair procedure in order to determine if the fastener may be reused and the applicable thread-locking compound to apply to the fastener.
Scheme 5
| Callout | Component Name |
|---|---|
| 1 | Prevailing Torque Nut, Center Lock Type |
| 2 | Prevailing Torque Nut, Top Lock Type |
| 3 | Prevailing Torque Nut, Nylon Patch Type |
| 4 | Prevailing Torque Nut, Nylon Washer Insert Type |
| 5 | Prevailing Torque Nut, Nylon Insert Type |
| 6 | Prevailing Torque Bolt, Dry Adhesive Coating Type |
| 7 | Prevailing Torque Bolt, Thread Profile Deformed Type |
| 8 | Prevailing Torque Bolt, Nylon Strip Type |
| 9 | Prevailing Torque Bolt, Out-of-Round Thread Area Type |
A prevailing torque fastener may be reused ONLY if
- The fastener and the fastener counterpart are clean and not damaged
- There is no rust on the fastener
- The fastener develops the specified minimum torque against its counterpart prior to the fastener seating
| Application | Specification | |
|---|---|---|
| Metric | English | |
| All Metal Prevailing Torque Fasteners | ||
| 6 mm | 0.4 N.m | 4 lb in |
| 8 mm | 0.8 N.m | 7 lb in |
| 10 mm | 1.4 N.m | 12 lb in |
| 12 mm | 2.1 N.m | 19 lb in |
| 14 mm | 3 N.m | 27 lb in |
| 16 mm | 4.2 N.m | 37 lb in |
| 20 mm | 7 N.m | 62 lb in |
| 24 mm | 10.5 N.m | 93 lb in |
| Nylon Interface Prevailing Torque Fasteners | ||
| 6 mm | 0.3 N.m | 3 lb in |
| 8 mm | 0.6 N.m | 5 lb in |
| 10 mm | 1.1 N.m | 10 lb in |
| 12 mm | 1.5 N.m | 13 lb in |
| 14 mm | 2.3 N.m | 20 lb in |
| 16 mm | 3.4 N.m | 30 lb in |
| 20 mm | 5.5 N.m | 49 lb in |
| 24 mm | 8.5 N.m | 75 lb in |
Metric Prevailing Torque Fastener Minimum Torque Development
| Application | Specification | |
|---|---|---|
| Metric | English | |
| All Metal Prevailing Torque Fasteners | ||
| 1/4 in | 0.5 N.m | 4.5 lb in |
| 5/16 in | 0.8 N.m | 7.5 lb in |
| 3/8 in | 1.3 N.m | 11.5 lb in |
| 7/16 in | 1.8 N.m | 16 lb in |
| 1/2 in | 2.3 N.m | 20 lb in |
| 9/16 in | 3.2 N.m | 28 lb in |
| 5/8 in | 4 N.m | 36 lb in |
| 3/4 in | 7 N.m | 54 lb in |
| Nylon Interface Prevailing Torque Fasteners | ||
| 1/4 in | 0.3 N.m | 3 lb in |
| 5/16 in | 0.6 N.m | 5 lb in |
| 3/8 in | 1 N.m | 9 lb in |
| 7/16 in | 1.3 N.m | 12 lb in |
| 1/2 in | 1.8 N.m | 16 lb in |
| 9/16 in | 2.5 N.m | 22 lb in |
| 5/8 in | 3.4 N.m | 30 lb in |
| 3/4 in | 5 N.m | 45 lb in |
English Prevailing Torque Fastener Minimum Torque Development
Thread Inserts
General Purpose Thread Repair Kits.
These kits are available commercially.
Repair Procedure
- Determine the size, the pitch, and the depth of the damaged thread. If necessary, adjust the stop collars on the cutting tool and tap to the required depth.
- Drill out the damaged threads. Clean out any chips.
- Lubricate the tap with light engine oil. Tap the hole. Clean the threads.
- Thread the thread insert onto the mandrel of the installer. Engage the tang of the insert onto the end of the mandrel.
- Lubricate the insert with light engine oil, except when installing in aluminum and install the insert.
- If the tang of the insert does not break off when backing out the installer, break the tang off with a drift.
Registered and Non-Registered Trademarks
Listed below are Registered Trademarks (®) or Non-Registered Trademarks (™) which may appear in this service manual.
| A |
|---|
| AC® |
| ACCUTURN® |
| ACDelco® |
| Active Fuel Management™ |
| Acuzinc® |
| Airbank® |
| Allison® |
| AMMCO® |
| AUTOFUSE® |
| AUTOTRAC® |
| B |
| Bendix® |
| Bluetooth® |
| BON-AMI® |
| Bosch® |
| Bose® |
| C |
| Caterpillar® |
| CAT® |
| C-Quam® |
| D |
| Delco® |
| Delco Bose® |
| Delco Electronics® |
| Delco Freedom® |
| Delco LOC II® |
| Delco Moraine® |
| Delco Remy® |
| Delco Sound® |
| Delco Supreme® |
| Delco Tech® |
| DELCORE® |
| Delphi® |
| DEX-COOL® |
| DEXOIL® |
| DEXRON® |
| DEXSTEER™ |
| DNR® |
| Dolby® |
| DR® |
| Duracell® |
| Duraguard® |
| Durastop® |
| Duramax™ |
| E |
| Eaton Corporation® |
| EMD® |
| ETR® |
| F |
| FLO-LITE® |
| G |
| General Motors® |
| GM® |
| GM Goodwrench Service® |
| GM Optikleen® |
| GM Parts™ |
| GM Pass® |
| GM Ultralite® |
| GMAC® |
| Goodwrench® |
| GTP® |
| H |
| Homelink™ |
| HYDRA-MATIC® |
| I |
| Illumination® |
| INSTA-TRAC® |
| Intune® |
| L |
| LOCTITE™ |
| Lord Fusor™ |
| M |
| MAGNASTEER® |
| Maxifuse® |
| Metripack® |
| Micropack® |
| Minifuse® |
| Mr Goodwrench® |
| N |
| Northstar® |
| O |
| OnStar® |
| Optikleen® |
| P |
| PASS-KEY® |
| PASS-KEYII® |
| PASSLOCK™ |
| PK3® |
| Posidrive® |
| Pro® |
| Q |
| Quad 4® |
| R |
| RAINSENSE™ |
| Rapid Fire® |
| S |
| ScotchBrite™ |
| Scotchguard™ |
| Signals® |
| Sikkens™ |
| Soft-Ray® |
| Solar-Ray® |
| Stabilitrak® |
| Sunrayce® |
| Superlube® |
| Syclone® |
| T |
| Tech 2® |
| Techline® |
| Teflon® |
| Tefzel® |
| Theft-I® |
| Theftlock® |
| Tiltmaster® |
| TORX® |
| Transjel® |
| Transguide® |
| Twilight Sentinel® |
| U |
| Ultralite® |
| V |
| Velcro® |
| W |
| Weatherpack™ |
Registered and Non-Registered Trademarks
Use Instruction Sheet Supplied
For the lock cylinder coding procedure, refer to the instruction sheet supplied in the lock cylinder kit.
For key cutting information, refer to the instructions provided from the manufacturer of the key cutting equipment used.
Scheme 6
| WARNING | To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist. |
| WARNING | To avoid any vehicle damage, serious personal injury or death, always use the jackstands to support the vehicle when lifting the vehicle with a jack. |
| CAUTION | Perform the following steps before beginning any vehicle lifting or jacking procedure: Remove or secure all of the vehicle contents in order to avoid any shifting or any movement that may occur during the vehicle lifting or jacking procedure. The lifting equipment or the jacking equipment weight rating must meet or exceed the weight of the vehicle and any vehicle contents. The lifting equipment or the jacking equipment must meet the operational standards of the lifting equipment or jacking equipment manufacturer. Perform the vehicle lifting or jacking procedure on a clean, hard, dry, level surface. Perform the vehicle lifting or jacking procedure only at the identified lift points. DO NOT allow the lifting equipment or jacking equipment to contact any other vehicle components. Failure to perform the previous steps could result in damage to the lifting equipment or the jacking equipment, the vehicle, and/or the vehicle contents. |
Vehicle Lifting
- Ensure that the lifting equipment meets weight requirements and is in good working order. Always follow the lift manufacturer's instructions.
- You may lift and support the front of the vehicle at the front suspension near the wheel assemblies. Ensure that the arms of the front cradle are extended as close to the steering knuckle as possible.
- Ensure that the vehicle is centered on the hoist before attempting to lift.
- When using a suspension-contact hoist, ensure that the rear cradle has adequate clearance for the rear stabilizer bar.
- When lifting or jacking a vehicle, be certain that the lift pads do not contact the exhaust system, brake pipes, cables, HVAC lines, wiring harnesses, fuel lines, or underbody. Such contact may result in damage or unsatisfactory vehicle performance.
- When using a frame-contact hoist, only place the pads on flat surfaces. Do not place pads within 50 mm (2 in) of any radius.
- Before lifting the vehicle, verify that the vehicle loads are secure and equally distributed.
- When major components are removed from the vehicle when supported on a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and secure the vehicle frame to the hoist pads nearest the component to be removed.
Vehicle Jacking
- Park the vehicle on a clean, hard, level surface before jacking the vehicle.
- Any time you lift the vehicle on one end, chock the wheels at the opposite end.
- Use jack stands in order to provide support.
- When supporting the vehicle using jack stands, place the jack stands under the side rails or the axle.
- When lifting under the rear differential, do not allow the jack pad to contact the rear stabilizer bar or mounting hardware.
Special Tools
The special service tools shown in this service manual that have product numbers beginning with J, BO, GE, CH, DT, EN, EL, SA, OR KM are available for worldwide distribution.
US and Canada only
Note. For Special Service tools only - see different location below for diagnostic tools & equipment.
Bosch Automotive Service Solutions
28635 Mound Road
Warren
MI
48092-3499
U.S.A
Phone: 1-800-GM-TOOLS
Monday through Friday
8:00 am-7:00 pm Eastern Standard Time
Fax: 1-800-578-7375 or 586-578-7321
www.gmspecialservicetools.spx.com
Mexico, Including Central America and Caribbean
Bosch Automotive Service Solutions
Mitla No. 442 Col. Vertiz Narvarte
03600 Mexico City
Mexico
Phone: +5255 2595 1630
Fax: +5255 2595 1639
Inquiries can be sent to: herramientas@spx.com
South America, Excluding Brazil
Bosch Automotive Service Solutions
Mitla No. 442 Col. Vertiz Narvarte
03600 Mexico City
Mexico
Phone: +5255 2595 1630
Fax: +5255 2595 1639
Inquiries can be sent to: herramientas@spx.com
Brazil
Bosch Automotive Service Solutions
Av. Maria Coelho de Aguiar, 573 - G10
05805-000 Sαo Paulo
Brasil
Phone: +55 11 5851-7477
Fax: +55 11 5853-7479
Inquiries can be sent to: ferramentas@spx.com
Korea, Thailand, Vietnam, Laos, Cambodia
Robert Bosch Korea Ltd, Service Solution
689-17 Geumjeong-dong, Gunpo-si, Gyeonggi-do, 435-862
Korea
Phone: 82-31-457-9520
Fax: 82-31-427-9522
Greater China, SGM, SGMW, FAW-GM, GM OPEL China
Bosch Automotive Service Solutions China
333 Fuquan Road North IBP, Changning District
Shanghai 200335 P.R.
Phone: 86-21-22182668
jianchao.zhai@cn.bosch.com, and Chao.Ma@cn.bosch.com
Fax: 86-21-22085666
Australia
Bosch Automotive Service Solutions Australia
300 Wellington Road
Mulgrave
Vic. 3170
Phone: 61 3 9544 6222
Fax: 61 3 9544 5222
Inquiries can be sent to: sales.aus@servicesolutions.spx.com
Iberica S.A.
Dealers based in Spain, Portugal and Canary Islands
Bosch Automotive Service Solutions Europe
Nave 72 (Nudo Oeste), 19004 Guadalajara
Spain
Phone: 34 949 208 337
Fax: 34 949 208 327
www.spxtools-shop.com
Europe GmbH
Dealers based in The Netherlands, Belgium and Luxemburg
Bosch Automotive Service Solutions Europe
Albert Tijsstraat 12, 6471 WX Kerkrade
Netherlands
Phone: 31 -45 567 8870
Fax: 31-45 567 8871
www.spxtools-shop.com
United Kingdom Limited
Dealers based in UK
Bosch Automotive Service Solutions Europe
Ironstone Way; Brixworth, Northants, NN6 9UD
Great Britain
Phone: 44 -1327 303 400
Fax: 44 -1327 303 499
www.spxtools-shop.com
Italy
Dealers based in Italy
Bosch Automotive Service Solutions Europe
Via provinciale, 12, 43038 Sala Baganza-PR
Italy
Phone: 39 -521 837 508
Fax: 39 - 521 335 385
www.spxtools-shop.com
Tech 2, MDI Diagnostic Tools and Accessories, Dealer Equipment
US and Canada
Dealer Equipment and Services
5775 Enterprise Drive
Warren
MI, U.S.A
48092-3463
Phone: 1-800-GM-TOOLS
Monday through Friday
8:00 am-6:00 pm EST
Fax: 1-586-578-7205
www.GMDEsolutions.net (US only) or www.des-canada.ca (Canada only)