Buick LaCrosse III (2016-2019) (lower left end of dash) Wiring diagrams

BATT POS VOLT BLK WIRE BRIGHTNESS DK GRN/BLK WIRE FUSE 39 GROUND GY HEAD UP DISPLAY SIG HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES HUD HUD SW LOW REF HUD SW SIG ILL INFO INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 12 LOGIC LT GRN WIRE LVDS RED/DK BLU WIRE RED/LT BLU WIRE YEL WIRE YEL/WHT WIRE

"CHECK ENGINE" IND CTRL ABS IND. ADAPTIVE CRUISE IND AFL IND AIR BAG IND AUTO STOP IND BATT POS VOLT BLK WIRE BRAKE IND BRAKE WARNING IND BRN WIRE CHARGING IND COMPUTER DATA LINES SYSTEM CRUISE IND DATA BUS 3 DATA BUS 4 DK GRN/BLK WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR OPEN IND DOWN DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY ECS IND ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE IND ESC OFF IND FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE FUSE 21 FUSE 39 GRY WIRE GRY/LT GRN WIRE GRY/VIO WIRE HEAD-UP DISPLAY CIRCUIT HEAD-UP DISPLAY SIG HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION 1 VOLT ILLUMINATION INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK KM/H IND LANE DEPARTURE WARNING IND LANE KEEPING ASSIST IND LED DISPLAY DIMMING CTRL LEFT LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LEFT TURN IND LF DR AJAR LIN SERIAL DATA BUS 12 LOGIC LOGIC DRIVER WINDOW MOTOR LOW SPD GMLAN SER DATA 2 LR DR AJAR LVDS BK MALFUNCTION IND MIL SS FUSE MOST SERIAL DATA (+) MPH IND NAVIGATION SYSTEM PARK BRAKE IND PARK IND PARK LAMP IND REAR FOG LAMP IND RED/DK BLU WIRE RED/LT BLU WIRE RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH RIGHT TURN IND SEAT BELT IND SECURITY IND SEEK DOWN SEEK UP SELECT SERVICE PARK BRAKE IND SPEEDOMETER SW SIG TACHOMETER TIRE PRESSURE IND TRACTION CONTROL OFF IND UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WHT/GRN WIRE

ACTIVE SAFETY CONTROL MODULE BATT POS VOLT BLK WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/VIO WIRE DRIVER INFORMATION CONTROL DISPLAY FRONT OBJECT SENSOR CONTROL 2 FRONT VIEW CAMERA (TOP CENTER OF WINDSHIELD) FUSE 40 GMLAN SERIAL DATA (-) 8 GMLAN SERIAL DATA - 1 GROUND GRY WIRE GRY/LT GRN WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (-) 4 LANE DEPARTURE WARNING DISABLE SW SIG HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LO SPD GMLAN SERIAL DATA 2 LOGIC INSTRUMENT CLUSTER LONG RANGE RADAR SENSOR MODULE LOW SPEED GMLAN LT GRN WIRE RED/DK GRN WIRE WHT WIRE

BATT POS VOLT BLK WIRE BLU/GRY WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS COLLISION ALERT SWITCH COMM ENABLE COMPUTER DATA LINES SYSTEM DK BLU WIRE FRONT VIEW CAMERA FUSE 40 GMLAN SERIAL DATA (-) 8 GROUND GRY WIRE GRY/GRN WIRE GRY/LT GRN WIRE GRY/WHT WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH IP BODY IGN FUSE LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPEED GMLAN SERIAL DATA 2 LOGIC LOW SPEED GMLAN LT GRN WIRE RED WIRE RED/DK GRN WIRE STEERING WHEEL AIR BAG COIL SW REF SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO/GRY WIRE WHT WIRE WHT/DK BLU WIRE WHT/GRY WIRE

1-VT 2-VT BATT POS VOLT BLK WIRE BLK/YEL WIRE BRN WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DK GRN/BLK WIRE DK GRN/DK BLU WIRE DK GRN/WHT WIRE FUSE 31 GRY/GRN WIRE HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN LVDS MEDIA DISC PLAYER MENU MUTE NEXT RADIO CONTROLS RED WIRE RED/LT BLU WIRE RED/VIO WIRE RED/WHT WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SELECT SERIAL DATA 2 SERIAL DATA BUS 10 SERIAL DATA BUS 5 STEERING WHEEL AIR BAG COIL TALK USB VOL (-) W/ ONSTAR W/O ONSTAR W/ NAVIGATION W/O NAVIGATION WHT WIRE YEL WIRE

1-VT 2-VT BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DK GRN/BLK WIRE FUSE 31 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/GRN WIRE HOT AT ALL TIMES ILL INSTRUMENT PANEL FUSE BLOCK LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MENU MUTE NEXT RED WIRE RED/VIO WIRE RED/WHT WIRE SEEK DOWN SEEK UP SELECT STEERING WHEEL AIR BAG COIL TALK USB VOL (-) WHT WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BRN/BLU WIRE BRN/DK BLU WIRE COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + DK BLU WIRE DK GRN/DK BLU WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE FUSE 16 FUSE 38 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY/GRN WIRE HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR WINDOW SHELF SPEAKER LOGIC LOW SPEED GMLAN LVDS MEDIA DISC PLAYER RADIO CONTROLS RED/BRN WIRE RED/LT BLU WIRE RED/VIO WIRE RED/YEL WIRE REPLICATED SERIAL DATA 2 SERIAL DATA BUS 10 SERIAL DATA BUS 5 SIG VIO/DK BLU WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GMLAN SERIAL DATA 2 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES ILL INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK MOST CONTROL MOST SERIAL DATA (+) RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR WINDOW SHELF SPEAKER WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE COMPUTER DATA LINES SYSTEM DIMMING CONTROL DK BLU/BLK WIRE FUSE 39 FUSE 42 GMLAN SERIAL DATA 2 GRN/VIO WIRE GROUND GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT REAR TRIM PANEL SPEAKER MOST CONTROL MOST SERIAL DATA (+) RED/BLU WIRE RED/LT BLU WIRE RED/VIO WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TRIM PANEL SPEAKER RIGHT SUBWOOFER SPEAKER WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

BATT POS VOLT BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY DRIVER OBJECT DETECTION IND DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION LED SIG (1) FUSE 40 GROUND GRY WIRE GRY/LT GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT SIDE OBJECT SENSOR MODULE LOGIC LOW SPD GMLAN SERIAL DATA 2 LOW SPEED GMLAN SERIAL DATA LT GRN WIRE PASS SIDE OBJECT DETECTION LED SIG (1) PASSENGER OBJECT DETECTION IND PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS RED/DK GRN WIRE RIGHT SIDE OBJECT SENSOR MODULE