MODEL IDENTIFICATION
To identify the proper procedures for the vehicle, identify the vehicle body. See BODY IDENTIFICATION table.
| Style | Model |
|---|---|
| Pickup | Sierra & Silverado, 3500 HAD |
| Utility | Avalanche, Escalade, Escalade ASV, Escalade EX, Suburban, Tahoe, Yukon, & Yukon XL |
BODY IDENTIFICATION
Vehicle drivetrain can be identified by 5th character of Vehicle Identification Number (VIN), stamped on metal pad on top of left end of instrument panel, near windshield. See DRIVETRAIN IDENTIFICATION table.
| Series (1) | Model |
|---|---|
| "C" | Avalanche, Escalade, Sierra, Silverado, 3500 HAD, Suburban, Tahoe, Yukon, & Yukon XL |
| "K" | Avalanche, Escalade, Escalade ASV, Escalade EX, Sierra, Silverado, 3500 HAD, Suburban, Tahoe, Yukon, & Yukon XL |
| (1) "C" series trucks are rear wheel drive. "K" series trucks are All Wheel Drive (AWD) or Four Wheel Drive RWD. | |
| (1) | "C" series trucks are rear wheel drive. "K" series trucks are All Wheel Drive (AWD) or Four Wheel Drive RWD. |
DRIVETRAIN IDENTIFICATION
Some procedures vary, depending on Gross Vehicle Weight Rating (GVWR) and options. For GVWR identification, check driver door jamb sticker. For Regular Production Option (RPO) Code identification, see RPO CODE IDENTIFICATION table. The RPO codes are on a label, normally located in glove box.
| RPO Code | Option |
|---|---|
| JC3 | Vacuum Boost 6400 GVWR |
| JC4 | Vacuum Boost 7200 GVWR |
| JH1 | Hydraulic Boost 6400 GVWR |
| JH2 | Hydraulic Boost 7200 GVWR |
| JH6 | Hydraulic Boost 9900 GVWR |
| JH7 | Hydraulic Boost 12,300 GVWR |
| JL4 | Active Brakes |
| NYS | 4-Wheel Steering |
RPO CODE IDENTIFICATION