Buick LaCrosse (2010-2016) fuses and relays

 

In this article, we consider the second generation Buick LaCrosse, produced from 2010 to 2016 (facelift in 2014). Here you will find fuse box diagrams of Buick LaCrosse 2010, 2011, 2012, 2013, 2014, 2015 and 2016, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Buick LaCrosse 2010-2016


Cigar lighter / power outlet fuses in the Buick LaCrosse are the fuses №6 and 7 in the Passenger compartment fuse box.


Fuse box location

Passenger compartment fuse box

It is located in the instrument panel, behind the storage compartment.The location of the fuses in the passenger compartment: Buick LaCrosse (2010-2016)

Fuse Box in the engine compartment

The location of the fuses in the engine compartment: Buick LaCrosse (2010-2016)

Fuse Box in the luggage compartment

It is located in the left side of the luggage compartment, behind the cover (if equipped).The location of the fuses in the trunk: Buick LaCrosse (2010, 2011, 2012)

Fuse box diagrams

2010, 2011, 2012

Passenger compartment

Instrument panel fuse box diagram: Buick LaCrosse (2010, 2011, 2012)

Assignment of the fuses and relays in the Passenger compartment (2010-2012)

Description
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
R3 Power outlet relay
Engine compartment

Under-hood fuse box diagram: Buick LaCrosse (2010, 2011, 2012)

Assignment of the fuses and relays in the Engine compartment (2010-2012)

Description
Fuses
1 Transmission control module–battery
2 Engine control module battery
3 Air Conditioning Compressor Clutch
5 Engine control module/Run/Crank
6 Wiper
7 Long range radar/ Front camera
8 Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched battery
11 Post Catalytic Converter Oxygen Sensor Heate
12 Starter
13 Trans Ignition/Fuel System Control Module
16 MAF
17 Airbag Module
18 SBZ Ignition
21 Rear power windows
22 Sunroof
23 Variable Effort Steering
24 Front power windows
25 Rear heated seats
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Power Lumbar, Left
30 Heated Seat/Right power pack cooling fan (eAssist)
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
41 Brake vacuum pump
42 Cooling fan K2
45 Cooling fan K1
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 Rearview 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 pump power module
69 Regulated voltage control sensor
70 Parking assist/Side blind zone
Relays
2 Starter
4 Wiper speed
5 Wiper control
7 Engine control module
9 Cooling fan
10 Cooling fan
13 Cooling fan
14 Headlamp low-beam
15 Run/Crank
17 Rear window defogger
Luggage compartment

Trunk fuse box diagram: Buick LaCrosse (2010, 2011, 2012)

Assignment of the fuses and relays in the Luggage compartment (2010-2012)

Description
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

2013, 2014, 2015, 2016

Passenger compartment

Instrument panel fuse box diagram: Buick LaCrosse (2013, 2014, 2015, 2016)

Assignment of the fuses and relays in the Passenger compartment (2013-2016)

Description
1 APO 3
2 Body control module 7
3 Steering wheel controls backlight
4 Radio/Human machine interface/ Rear auxiliary audio jack/Front auxiliary audio video jack/ Touchpad/Remote media player/Bluray remote media player
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 HVAC/Blower
12 Passenger seat
13 Driver seat
14 Diagnostic link connector
15 Airbag/Automatic occupant sensing
16 Trunk
17 HVAC Controller
18 Pre-fuse for fuses 4 and 5
19 Center stack displays/Head-up display/Right steering wheel control switch/Rear seat infotainment display (eAssist)/ HVAC/Center stack displays
20 Rear seat entertainment display/Rear seat audio
21 Instrument cluster
22 Discrete logic ignition switch
23 Body control module 3
24 Body control module 2
25 Rear HVAC/Blower
26 AC DC inverter
Relays
R1 Trunk relay
R2
R3 Power outlet relay
Engine compartment

Under-hood fuse box diagram: Buick LaCrosse (2013, 2014, 2015, 2016)

Assignment of the fuses and relays in the Engine compartment (2013-2016)

Description
Fuses
1 Transmission control module–battery
2 Engine control module battery
3 Air Conditioning Compressor Clutch
5 Engine control module/Run/Crank
6 Wiper
7 Long range radar/ Front camera
8 Ignition coils–even (6–cylinder engine)/ Ignition coils–all (4–cylinder engine)
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched battery
11 6–cylinder Engine: post catalytic converter/O2 sensor/ Heater/Mass air flow sensor/FlexFuel sensor/Secondary air induction solenoid
12 Starter
13 Crank for transmission control module/Fuel pump power/Chassis control module (eAssist)
14 Cabin heater coolant pump (eAssist)/ secondary air injector/Secondary air injector with pressure sensor
15 Motor generator unit coolant pump (eAssist)
16 Run/Crank for eAssist power inverter module
17 Not Used
18 Sunshade module/ Vehicle air purification system/ Ventilated seats
20 Heated steering wheel (non eAssist)
21 Rear power windows
22 Sunroof
23 Variable effort steering (if equipped) or eAssist power inverter module
24 Front power windows
25 Rear heated seats
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Heated seat/Left power lumbar
30 Heated Seat/Right power pack cooling fan (eAssist)
31 AWD/Electronic suspension control
32 Body control module 6
33 Memory seat–front
34 Antilock brake system valves
35 Amplifier
36 Adaptive forward lighting (AFL) motors–battery
37 Right high-beam
38 Left high-beam
41 Brake vacuum pump
42 Cooling fan K2
43 Not Used
44 Transmission auxiliary oil pump (eAssist)
45 Cooling fan K1
46 Cooling fan relay
47 Six Cylinder Engine: Pre Catalytic Converter Oxygen Sensor Heater, Canister Purge Solenoid. Four Cylinder Engine: Pre and Post Catalytic Converter Oxygen Sensor Heaters, Canister Purge Solenoid
48 Fog lamps
49 Right High Intensity Discharge Headlamp
51 Horn
52 Cluster Run/Crank
53 Run/Crank for: rearview mirror/Rear vision camera/Air quality sensor/Aero shutter motor
54 Run/Crank for: HVAC/Headlamp switch
55 Outside rearview mirror/Universal remote system/Front window switches
56 Windshield washer
59 AIR pump
60 Heated mirror
62 Canister vent
64 Adaptive forward lighting (AFL) module–battery
65 Not Used
66 AIR solenoid (eAssist)
67 Fuel pump power module/Chassis control module
69 Regulated voltage control sensor
70 Parking assist/Side blind zone
71 Passive entry/ Passive start
Relays
1 A/C Clutch
2 Starter
4 Wiper speed
5 Wiper control
6 Cabin heater coolant pump (eAssist)/ Secondary air injector/Secondary air injector with pressure senso
7 Engine control module
9 Cooling fan
10 Cooling fan
11 Transmission auxiliary oil pump (eAssist)
13 Cooling fan
14 Headlamp low-beam
15 Run/Crank
16 AIR pump
17 Rear window defogger

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