Buick LaCrosse 2st generation was produced in 2010, 2011, 2012, 2013, 2014, 2015, 2016. During this time, the model underwent restyling. In our article we will present a description of fuses and relays Buick LaCrosse 2with fuse box diagrams, their locations and photo examples of execution. Let’s highlight the cigarette lighter fuse.
The number of elements in the boxes and their purpose may differ from that shown and depends on the year of manufacture and the country of delivery of your Buick LaCrosse 2.
Contents
Passenger compartment
Fuse box is located under the dashboard on the driver’s side, behind the glove compartment.
Diagram
Assignment
| 1 | 2A Steering Wheel Control Switch |
| 2 | 15A Body Control Module (BCM) |
| 3 | 15A Body Control Module (BCM) |
| 4 | 15A Audio System |
| 5 | 7,5A Vehicle Communications Interface Module (VCIM) |
| 6 | 20A Accessory Power Outlet (Center Console 1) |
| 7 | 20A Accessory Power Outlet (Center Console 2) |
| 8 | 15A Body Control Module (BCM) |
| 9 | 15A Body Control Module (BCM) |
| 10 | 30A Body Control Module (BCM) |
| 11 | 40A HVAC Control Module |
| 12 | 25A Circuit Breaker: Passenger Seat |
| 13 | 25A Circuit Breaker: Driver Seat, Seat Memory Control Module |
| 14 | 7,5A Data Link Connector |
| 15 | 10A Inflatable Restraint Sensing and Diagnostic Module (SDM) |
| 16 | 10A Rear Compartment Lid Latch |
| 17 | 10A HVAC Control Module |
| 18 | 25A Audio System |
| 19 | 10A Head Up Display (HUD), Info Display Module, Multimedia Player Interface Module, Radio/HVAC Control |
| 20 | 5A Inflatable Restraint Passenger Presence System (PPS) Module |
| 21 | 5A Instrument Panel Cluster (IPC) |
| 22 | 2A Ignition Switch |
| 23 | 15A Body Control Module (BCM) |
| 24 | 15A Body Control Module (BCM) |
| 25 | – |
| 26 | 30A Accessory AC/DC Power Control Module |
| Relay | |
| R1 | Accessory |
| R2 | – |
| R3 | Rear Compartment Lid Unlatch |
The fuses numbered 6 and 7 at 20A are responsible for the operation of the cigarette lighter and additional sockets.
Engine compartment
Main fuse box
The main fuse and relay box is on the left, next to the battery, and is covered by a protective cover.
Photo for example
Diagram
Designation
| 1 | 15A Transmission Control Solenoid Valve Assembly |
| 2 | 5A Engine Control Module (ECM) |
| 3 | 10A ’14: A/C Compressor Clutch |
| 4 | – |
| 5 | 5A Engine Control Module (ECM) |
| 6 | 30A Windshield Wiper Motor |
| 7 | – |
| 8 | 15A 3.0L (LF1), 3.6L (LLT, LFX): Ignition Coils, Engine Control Module (ECM) |
| 9 | 15A 3.0L (LF1), 3.6L (LLT, LFX), 2.4L (LUK): Ignition Coils, Engine Control Module (ECM) |
| 10 | 20A Engine Control Module (ECM) |
| 11 | 10A 3.0L (LF1), 3.6L (LLT, LFX): Heated Oxygen Sensors |
| 10A 3.6L (LFX): Heated Oxygen Sensors, Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor, Fuel Composition Sensor | |
| 12 | 30A Starter Motor |
| 13 | 7,5A Fuel Pump Flow Control Module, Transmission Control Solenoid Valve Assembly |
| 14 | 5A 2.4L (LUK – Hybrid): Heater Coolant Pump |
| 15 | 10A 2.4L (LUK – Hybrid): Starter/Generator Control Module |
| 16 | 7,5A 3.6L (LLT): Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor |
| 17 | 5A Inflatable Restraint Sensing and Diagnostic Module (SDM) |
| 18 | – |
| 19 | – |
| 20 | – |
| 21 | 30A Window Switch (Left Rear/Right Rear) |
| 22 | 30A Sunroof Control Module, Sunroof Sunshade Motor Module |
| 23 | 10A Power Steering Control Module |
| 7,5A 2.4L (LUK – Hybrid): Hybrid/EV Battery Pack | |
| 24 | 30A “14: Window Switch (Left Front/Right Front) |
| 25 | – |
| 26 | 60A ABS |
| 27 | 30A Parking Brake Control Module |
| 28 | 40A Rear Window Defogger |
| 29 | 15A Seat Lumbar Adjuster Switch – Driver |
| 30 | 15A 2.4L (LUK -Hybrid): Hybrid/EV Battery Pack Cooling Fan |
| 31 | – |
| 32 | 15A Body Control Module (BCM) |
| 33 | 25A Heated Seat Control Module |
| 25A Memory Seat Module | |
| 34 | 25A ABS |
| 35 | 30A Audio Amplifier |
| 36 | 10A Adaptive Forward Lighting (AFL) |
| 37 | 10A Right Headlamp (High Beam), High Beam Solenoid Actuator (Right) |
| 38 | 10A Left Headlamp (High Beam), High Beam Solenoid Actuator (Left) |
| 39 | – |
| 40 | – |
| 41 | 20A Brake Booster Pump Motor |
| 42 | 30A Cooling Fan Motor (Right) |
| 43 | – |
| 44 | 30A 2.4L (LUK -Hybrid): Transmission Fluid Pump |
| 45 | 30A Cooling Fan Motor (Left) |
| 46 | 10A Cooling Fan Low Speed Relay, Cooling Fan Left High Speed Relay |
| 47 | 10A 2.4L (LAF), 3.0L (LF1), 2.4L (LUK): Heated Oxygen Sensors, Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor |
| 10A 3.6L (LLT): Camshaft Position (CMP) Actuators | |
| 10A 3.6L (LFX): Heated Oxygen Sensor, Multifunction Intake Air Sensor, Evaporative Emission Purge Solenoid Valves | |
| 48 | 15A Front Fog Lamps |
| 49 | 15A Right Headlamp (Low Beam) |
| 50 | 15A Left Headlamp (Low Beam) |
| 51 | 15A Horn |
| 52 | 5A Instrument Panel Cluster (IPC) |
| 53 | 10A Air Quality Sensor, Brake Booster Vacuum Switch, Inside Rearview Mirror, Rearview Camera, Active Grille Air Shutter Actuator |
| 54 | 5A HVAC Control Module |
| 55 | 7,5A Outside Rearview Mirror Switch, Window Switch (Driver/Passenger Side), Garage Door Opener |
| 56 | 15A Windshield Washer Fluid Pump |
| 57 | – |
| 58 | – |
| 59 | 50A Secondary Air Injection Pump |
| 60 | 7,5A Heated Mirror |
| 61 | – |
| 62 | 10A Evaporative Emission (EVAP) Canister Vent Solenoid Valve |
| 63 | – |
| 64 | 5A Headlamp Control Module |
| 65 | – |
| 66 | 15A Secondary Air Injection Pressure Sensor |
| 67 | 20A Fuel Pump Flow Control Module |
| 68 | – |
| 69 | 5A Body Control Module (BCM) |
| 70 | 5A Side Object Sensor (Left/Right), Rear Parking Assist Control Module |
| 71 | – |
| Relay | |
| R1 | Air Conditioning Compressor Clutch |
| R2 | Starter |
| R3 | – |
| R4 | Front Wiper (Speed Control) |
| R5 | Front Wiper (On/Off) |
| R6 | 2.4L (LUK -Hybrid): Heater Coolant Pump |
| R7 | Engine Control Module (ECM) |
| R8 | – |
| R9 | Cooling Fan Right (High Speed) |
| R10 | Cooling Fan (Low Speed) |
| R11 | 2.4L (LUK -Hybrid): Transmission Fluid Pump |
| R12 | – |
| R13 | Cooling Fan Left (High Speed) |
| R14 | Low Beam |
| R15 | Ignition |
| R16 | Secondary Air Injection Pump |
| R17 | Rear Window Defogger |
| Relay (Non-Serviceable) | |
| R18 | Horn |
| R19 | Windshield Washer Pump |
| R20 | Front Fog Lamp |
| R21 | High Beam |
| R22 | Door Locks |
| R23 | 2.4L (LUK – Hybrid): Starter/Generator Control Module |
Battery-powered box
A high power fuse box must be attached to the battery cover.
Allocation
- 100A Fuse Block (Instrument Panel)
- 100A Fuse Block (Instrument Panel)
- 100A Fuse Block (Rear Left)
- 100A Fuse Block (Rear Left)
- 250A Fuse Block (Underhood)
- 300A Starter Motor
Luggage compartment
In the luggage compartment, this unit is hidden behind the trim on the left side, if equipped.
Diagram
Appointment
| 1 | Not Used |
| 2 | Not Used |
| 3 | Not Used |
| 4 | Not Used |
| 5 | Not Used |
| 6 | Heated Steering Wheel |
| 7 | Not Used |
| 8 | Not Used |
| 9 | Not Used |
| 10 | Not Used |
| 11 | Not Used |
| 12 | Not Used |
| 13 | Not Used |
| 14 | Not Used |
| 15 | Not Used |
| 17 | Not Used |
| 18 | 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 |
| 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 |
And if you have something to add or have questions, write everything in the comments.