Buick LaCrosse 2G (2010 – 2016) fuse and relay

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.

Buick LaCrosse 2

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.

Passenger compartment

Fuse box is located under the dashboard on the driver’s side, behind the glove compartment.



Diagram 1


12A Steering Wheel Control Switch
215A Body Control Module (BCM)
315A Body Control Module (BCM)
415A Audio System
57,5A Vehicle Communications Interface Module (VCIM)
620A Accessory Power Outlet (Center Console 1)
720A Accessory Power Outlet (Center Console 2)
815A Body Control Module (BCM)
915A Body Control Module (BCM)
1030A Body Control Module (BCM)
1140A HVAC Control Module
1225A Circuit Breaker: Passenger Seat
1325A Circuit Breaker: Driver Seat, Seat Memory Control Module
147,5A Data Link Connector
1510A Inflatable Restraint Sensing and Diagnostic Module (SDM)
1610A Rear Compartment Lid Latch
1710A HVAC Control Module
1825A Audio System
1910A Head Up Display (HUD), Info Display Module, Multimedia Player Interface Module, Radio/HVAC Control
205A Inflatable Restraint Passenger Presence System (PPS) Module
215A Instrument Panel Cluster (IPC)
222A Ignition Switch
2315A Body Control Module (BCM)
2415A Body Control Module (BCM)
25 –
2630A Accessory AC/DC Power Control Module
R2 –
R3Rear 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.

The location of the unit under the hood astra jay

Photo for example



Diagram 2


115A Transmission Control Solenoid Valve Assembly
25A Engine Control Module (ECM)
310A ’14: A/C Compressor Clutch
4 –
55A Engine Control Module (ECM)
630A Windshield Wiper Motor
7 –
815A 3.0L (LF1), 3.6L (LLT, LFX): Ignition Coils, Engine Control Module (ECM)
915A 3.0L (LF1), 3.6L (LLT, LFX), 2.4L (LUK): Ignition Coils, Engine Control Module (ECM)
1020A Engine Control Module (ECM)
1110A 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
1230A Starter Motor
137,5A Fuel Pump Flow Control Module, Transmission Control Solenoid Valve Assembly
145A 2.4L (LUK – Hybrid): Heater Coolant Pump
1510A 2.4L (LUK – Hybrid): Starter/Generator Control Module
167,5A 3.6L (LLT): Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor
175A Inflatable Restraint Sensing and Diagnostic Module (SDM)
18 –
19 –
20 –
2130A Window Switch (Left Rear/Right Rear)
2230A Sunroof Control Module, Sunroof Sunshade Motor Module
2310A Power Steering Control Module
7,5A 2.4L (LUK – Hybrid): Hybrid/EV Battery Pack
2430A “14: Window Switch (Left Front/Right Front)
25 –
2660A ABS
2730A Parking Brake Control Module
2840A Rear Window Defogger
2915A Seat Lumbar Adjuster Switch – Driver
3015A 2.4L (LUK -Hybrid): Hybrid/EV Battery Pack Cooling Fan
31 –
3215A Body Control Module (BCM)
3325A Heated Seat Control Module
25A Memory Seat Module
3425A ABS
3530A Audio Amplifier
3610A Adaptive Forward Lighting (AFL)
3710A Right Headlamp (High Beam), High Beam Solenoid Actuator (Right)
3810A Left Headlamp (High Beam), High Beam Solenoid Actuator (Left)
39 –
40 –
4120A Brake Booster Pump Motor
4230A Cooling Fan Motor (Right)
43 –
4430A 2.4L (LUK -Hybrid): Transmission Fluid Pump
4530A Cooling Fan Motor (Left)
4610A Cooling Fan Low Speed Relay, Cooling Fan Left High Speed Relay
4710A 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
4815A Front Fog Lamps
4915A Right Headlamp (Low Beam)
5015A Left Headlamp (Low Beam)
5115A Horn
525A Instrument Panel Cluster (IPC)
5310A Air Quality Sensor, Brake Booster Vacuum Switch, Inside Rearview Mirror, Rearview Camera, Active Grille Air Shutter Actuator
545A HVAC Control Module
557,5A Outside Rearview Mirror Switch, Window Switch (Driver/Passenger Side), Garage Door Opener
5615A Windshield Washer Fluid Pump
57 –
58 –
5950A Secondary Air Injection Pump
607,5A Heated Mirror
61 –
6210A Evaporative Emission (EVAP) Canister Vent Solenoid Valve
63 –
645A Headlamp Control Module
65 –
6615A Secondary Air Injection Pressure Sensor
6720A Fuel Pump Flow Control Module
68 –
695A Body Control Module (BCM)
705A Side Object Sensor (Left/Right), Rear Parking Assist Control Module
71 –
R1Air Conditioning Compressor Clutch
R3 –
R4Front Wiper (Speed Control)
R5Front Wiper (On/Off)
R62.4L (LUK -Hybrid): Heater Coolant Pump
R7Engine Control Module (ECM)
R8 –
R9Cooling Fan Right (High Speed)
R10Cooling Fan (Low Speed)
R112.4L (LUK -Hybrid): Transmission Fluid Pump
R12 –
R13Cooling Fan Left (High Speed)
R14Low Beam
R16Secondary Air Injection Pump
R17Rear Window Defogger
Relay (Non-Serviceable)
R19Windshield Washer Pump
R20Front Fog Lamp
R21High Beam
R22Door Locks
R232.4L (LUK – Hybrid): Starter/Generator Control Module

Battery-powered box

A high power fuse box must be attached to the battery cover.

Block on battery


  1. 100A Fuse Block (Instrument Panel)
  2. 100A Fuse Block (Instrument Panel)
  3. 100A Fuse Block (Rear Left)
  4. 100A Fuse Block (Rear Left)
  5. 250A Fuse Block (Underhood)
  6. 300A Starter Motor

Luggage compartment

In the luggage compartment, this unit is hidden behind the trim on the left side, if equipped.

location 3


Opel insignia trunk fuse block diagram


1Not Used
2Not Used
3Not Used
4Not Used
5Not Used
6Heated Steering Wheel
7Not Used
8Not Used
9Not Used
10Not Used
11Not Used
12Not Used
13Not Used
14Not Used
15Not Used
17Not Used
18Not Used
19Not Used
20Rear Sunshade, Ventilated Seats
21Not Used
22Not Used
23Not Used
24Not Used
25Not Used
26Not Used
27Not Used
28Not Used
29Not Used
30Not Used
31Electronic Suspension Control
32Rear Seat Infotainment
33All‐Wheel Drive
34Not Used
36Not Used
37Not Used
K1Not Used
K2Seat Ventilation, Sunshade
K3Heated Steering Wheel
K4Not Used


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