GMC Terrain II (2017-2021) (on steering column) Wiring diagrams

1.5L TURBO, 2.0 TURBO ACCY WAKEUP BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/YEL WIRE GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/PPL WIRE HI SPD GMLAN INSTRUMENT CLUSTER LO SPD GMLAN SER DATA 2 MOST SER DATA (+) NETWORK SER DATA BUS 12 NITROGEN OXIDES SENSOR 2 PPL/YEL WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SER DATA SER DATA (-) 7 SER DATA - (3) STEERING WHEEL AIR BAG COIL TRANSMISSION RANGE SELECTOR CONTROLS VIDEO PROCESSING CONTROL MODULE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

1.5L TURBO, 2.0L TURBO 1.6L TURBO DIESEL ADAPTIVE CRUISE IND ADAPTIVE CRUISE SWITCH APP POS SIG 1 APP SIG (2) BATT POS VOLT BATT POSITIVE VOLT BCM 7 FUSE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/PPL WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRK APPLY SENS CTRL BRK APPLY SENS SIG BRK POS SENS LOW REF BRK POS SENS SIG BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CANCEL SWITCH CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM CRUISE IND CRUISE/ETC/TCC BRAKE SIG DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY ECM FUSE ENGINE CONTROL MODULE FORWARD COLLISION ALERT WARNING SWITCH GMLAN GMLAN SERIAL DATA (-) 3 GP UP/DOWN SWITCH GRN/WHT WIRE GROUND GRY/GRN WIRE HOT ALL ALL TIMES HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO SPD LOGIC LOW REF LOW REF (1) LOW REF 2 RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RES+ SER SERIAL DATA (-) (1) SET- SET/COAST/RESUME/ ACCELERATE SW SIG STEERING WHEEL AIR BAG COIL TB SENS SIG THROTTLE ACTR CTRL CLOSE THROTTLE ACTR CTRL OPEN THROTTLE POSITION SENS 5 VOLT REF THROTTLE POSITION SENS LOW REF UNDERHOOD FUSE BLOCK UP/DOWN SW SIG WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

1.5L TURBO, 2.0L TURBO 1.6L TURBO DIESEL ADAPTIVE CRUISE IND ADAPTIVE CRUISE SWITCH APP POS SIG 1 APP SIG (2) BATT POS VOLT BATT POSITIVE VOLT BCM 7 FUSE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/PPL WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRK APPLY SENS CTRL BRK APPLY SENS SIG BRK POS SENS LOW REF BRK POS SENS SIG BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CANCEL SWITCH COMPUTER DATA LINES SYSTEM CRUISE IND CRUISE/ETC/TCC BRAKE SIG DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY ECM FUSE ENGINE CONTROL MODULE FORWARD COLLISION ALERT WARNING SWITCH GMLAN GMLAN SERIAL DATA (-) 3 GP UP/DOWN SWITCH GRN WIRE GRN/WHT WIRE GROUND GRY/GRN WIRE HOT ALL ALL TIMES HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LO SPD LOGIC LOW REF LOW REF (1) LOW REF 2 RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RES+ SER SERIAL DATA (-) (1) SET- SET/COAST/RESUME/ ACCELERATE SW SIG STEERING WHEEL AIR BAG COIL TB SENS SIG THROTTLE ACTR CTRL CLOSE THROTTLE ACTR CTRL OPEN THROTTLE POSITION SENS 5 VOLT REF THROTTLE POSITION SENS LOW REF UNDERHOOD FUSE BLOCK UP/DOWN SW SIG W/ FORWARD COLLISION ALERT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

ACTIVE GRILLE AIR SHUTTER ACTUATOR 1 AMBIENT LIGHT/ SUNLOAD SENSOR BATTERY SAVER RELAY 1 BLK WIRE BRN WIRE COLLISION ALERT INDICATORS DATA LINK CONNECTOR DIODES ENGINE HOOD SWITCH GMC HEADLAMP SWITCH HORN SWITCH HVAC CONTROL MODULE IGNITION MAIN RELAY IGNITION MODE SWITCH LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP BALLAST LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP COOLING FAN LEFT HEADLAMP LEVELING ACTUATOR LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP LEFT STEERING WHEEL CONTROLS SWITCH LIFTGATE UNLATCH RELAY MOBILE DEVICE WIRELESS CHARGER MODULE NCA WIRE RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH REAR DEFOGGER RELAY REAR WINDOW WASHER PUMP REAR WINDOW WASHER PUMP RELAY REAR WIPER RELAY RETAINED ACCESSORY POWER RELAY RIGHT STEERING WHEEL CONTROLS SWITCH SERIAL DATA GATEWAY MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER STEERING WHEEL HEATING CONTROL MODULE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ ONSTAR W/O START STOP SYSTEM WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY

12 VOLT REF ALERT LED CTRL BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU WIRE BODY CONTROL MODULE (BELOW CENTER OF DASH) BRN WIRE CAM LGM VPM FUSE CHEVROLET COLLISION ALERT INDICATORS COMPUTER DATA LINES SYSTEM DIMMING CTRL DRIVE MODE SELECT SWITCH DRIVER LEFT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER SEAT MEMORY CONTROL MODULE FORWARD COLLISION ALERT LED CTRL FORWARD COLLISION ALERT WARNING SWITCH FRONT VIEW WINDSHIELD CAMERA FUSE 3 GMC GRN WIRE GRN/WHT WIRE GROUND GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOCAL INTERCONNECT NETWORK BUS 8 LOGIC LOW SPD GMLAN SERIAL DATA LOW SPD GMLAN SERIAL DATA 2 LR HAPTIC SEAT MOTOR CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE REFLECTED LED DISPLAY DIMMING CTRL RR HAPTIC SEAT MOTOR CTRL SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VAR/FUNC FUSE W/ FORWARD COLLISION ALERT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BRN WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN ETHERNET BUS 4 (-) GRN/ORG WIRE GRY WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/BRN WIRE REF RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE LOW REF VOICE SIGNAL VOL (-) W/ ONSTAR W/O ONSTAR WHT WIRE WHT/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN ETHERNET BUS 4 (-) GRN/ORG WIRE GRY WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/BRN WIRE RED/PPL WIRE REF RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE LOW REF VOICE SIGNAL VOL (-) W/ ONSTAR W/O ONSTAR WHT WIRE WHT/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE CELL CELL/GPS COAX COMPUTER DATA LINES SYSTEM ETHERNET BUS 4 (-) GRN/ORG WIRE GRY WIRE GRY/ORG WIRE GRY/WHT WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC MICROPHONE (-) LOW REF MICROPHONE SIG POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU (OR BLU) WIRE RED/BLU WIRE RED/BRN WIRE REF RIGHT DOWN RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VOL (-) VOL - SEL W/ ONSTAR W/O ONSTAR W/O S-BAND DIGITAL AUDIO SYSTEM WHT WIRE WHT/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN ETHERNET BUS 4 (-) GRN/ORG WIRE GRY WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/BRN WIRE REF RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE LOW REF VOICE SIGNAL VOL (-) W/ ONSTAR W/O ONSTAR WHT WIRE WHT/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN ETHERNET BUS 4 (-) GRN/ORG WIRE GRY WIRE GRY/ORG WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH SPD GMLAN LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE POWER DISTRIBUTION SYSTEM RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/BRN WIRE RED/PPL WIRE REF RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 SIG STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE LOW REF VOICE SIGNAL VOL (-) W/ ONSTAR W/O ONSTAR WHT WIRE WHT/GRN WIRE