
Buick LaCrosse 2011 Fuse Box Info
Passenger compartment fuse box location:

The instrument panel fuse box is located in the instrument panel, on the driver side of the vehicle.
Engine compartment fuse box location:

Luggage compartment fuse box location:

Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Functions |
| Fuses | |
| 1 | Steering Wheel Controls Backlight |
| 2 | Body Control Module 7 |
| 3 | Body Control Module 5 |
| 4 | Radio |
| 5 | OnStar® Universal Hands Free Phone |
| 6 | Power Outlet 1 |
| 7 | Power Outlet 2 |
| 8 | Body Control Module 1 |
| 9 | Body Control Module 4 |
| 10 | Body Control Module 8 |
| 11 | Front Heater Ventilation Air Conditioning/Blower |
| 12 | Passenger Seat |
| 13 | Driver Seat |
| 14 | Diagnostic Link Connector |
| 15 | Airbag |
| 16 | Trunk |
| 17 | Heater Ventilation Air Conditioning Controller |
| 18 | Radio, OnStar®, Universal Hands Free Phone |
| 19 | Display |
| 20 | Automatic Occupant Sensing |
| 21 | Instrument Panel Cluster |
| 22 | Discrete Logic Ignition Switch |
| 23 | Body Control Module 3 |
| 24 | Body Control Module 2 |
| 25 | Rear Heater Ventilation Air Conditioning/Blower |
| 26 | AC/DC Inverter |
| Relays | |
| R1 | Trunk Relay |
| R2 | Not Used |
| R3 | Power Outlet Relay |
Engine compartment fuse box:
| Fuse/Relay N° | Functions |
| Mini Fuses | |
| 1 | Transmission Control Module |
| 2 | Engine Control Module Battery |
| 5 | Engine Control Module Ignition |
| 8 | Ignition Coils ‐ Even |
| 9 | Ignition Coils ‐ Odd |
| 10 | Engine Control Module |
| 11 | Post Catalytic Converter Oxygen Sensor Heater |
| 13 | Trans Ignition/Fuel System Control Module |
| 16 | MAF |
| 17 | Airbag Module |
| 18 | SBZ Ignition |
| 23 | Variable Effort Steering |
| 29 | Power Lumbar, Left |
| 32 | Body Control Module |
| 33 | Heated Seat |
| 34 | Antilock Brake System Valves |
| 35 | Amplifier |
| 36 | AFL Ignition |
| 37 | Right High Beam |
| 38 | Left High Beam |
| 46 | Cooling Fan Relay |
| 47 | Pre Catalytic Converter Oxygen Sensor Heater |
| 48 | Fog Lamps |
| 49 | Right High Intensity Discharge Headlamp |
| 50 | Left High Intensity Discharge Headlamp |
| 51 | Horn |
| 52 | Cluster Ignition |
| 53 | Inside Rearview Mirror, Rear Vision Camera, Vacuum Pump |
| 54 | Heating, Ventilation and Air Conditioning |
| 55 | Outside Rear View Mirror, Universal Garage Door Opener, Window Switch |
| 56 | Windshield Washer |
| 60 | Heated Mirror |
| 62 | Canister Vent |
| 64 | AFL Battery |
| 65 | Theft Deterrent Horn |
| 67 | Fuel System Control Module |
| 69 | Regulated Voltage Control Sensor |
| 70 | Ultrasonic Parking Assist/Side Blind Zone |
| J-Case Fuses | |
| 6 | Wiper |
| 12 | Starter |
| 21 | Rear Power Windows |
| 22 | Sunroof |
| 24 | Front Power Windows |
| 26 | Antilock Brake System Pump |
| 27 | Electric Park Brake |
| 28 | Rear Window Defogger |
| 41 | Brake Vacuum Pump |
| 42 | Cooling Fan K2 |
| 45 | Cooling Fan K1 |
| Mini Relays | |
| 7 | Engine Control Module |
| 9 | Cooling Fan |
| 13 | Cooling Fan |
| 15 | Run / Crank |
| 17 | Rear Window Defogger |
| Micro Relays | |
| 2 | Starter |
| 4 | Wiper Speed |
| 5 | Wiper Control |
| 10 | Cooling Fan |
| 14 | Headlamp Low Beam |
Luggage compartment fuse box:
| Fuse/Relay N° | Functions |
| Mini Fuses | |
| 5 | Not Used |
| 6 | Heated Steering Wheel |
| 7 | Not Used |
| 8 | Not Used |
| 12 | Not Used |
| 15 | Not Used |
| 16 | Not Used |
| 17 | Not Used |
| 18 | PEPS |
| 19 | Not Used |
| 20 | Rear Sunshade, Ventilated Seats |
| 21 | Not Used |
| 22 | Not Used |
| 23 | Not Used |
| 24 | Not Used |
| 25 | Not Used |
| 26 | Not Used |
| 27 | Not Used |
| 28 | Not Used |
| 29 | Not Used |
| 30 | Not Used |
| 31 | Electronic Suspension Control |
| 32 | Rear Seat Infotainment |
| 33 | All‐Wheel Drive |
| J‐Case Fuses | |
| 1 | Not Used |
| 2 | Not Used |
| 3 | Not Used |
| 4 | Not Used |
| 9 | Not Used |
| 10 | Not Used |
| 11 | Not Used |
| 13 | Not Used |
| 14 | Not Used |
| 34 | Not Used |
| 35 | PEPS |
| 36 | Not Used |
| 37 | Not Used |
| Relays | |
| K1 | Not Used |
| K2 | Seat Ventilation, Sunshade |
| K3 | Heated Steering Wheel |
| K4 | Not Used |





