Jonathan Yarden Jan 30, 2021 · 5 min. read
In this article you will find a description of fuses and relays Buick,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2010, 2011, 2012
Engine Compartment Fuse Block
Fuses | Usage |
1 | Transmission control module |
2 | Engine control module |
3 | Not Used |
4 | Not Used |
5 | Ignition/ Transmission control module/Engine control module |
6 | Windshield wiper |
7 | Not Used |
8 | Fuel Injection, Ignition System Even |
9 | Fuel Injection, Ignition System Odd |
10 | Engine control module |
11 | Oxygen sensor |
12 | Starter |
13 | Fuel system control module |
14 | Secondary Air Induction |
15 | Not Used |
16 | Vacuum Pump |
17 | Ignition, Airbag |
18 | Not Used |
19 | Not Used |
20 | Not Used |
21 | Rear power windows |
22 | Antilock Brake System Valve |
23 | Variable Effort Steering |
24 | Front power windows |
25 | Power outlets |
26 | Antilock Brake System Pump |
27 | Electric parking brake |
28 | Rear window defogger |
29 | Left-Hand Seat Lumbar |
30 | Right-Hand Seat Lumbar |
31 | Not Used |
32 | Body control module 6 |
33 | Heated front seats |
34 | Sunroof |
35 | Infotainment system |
36 | Not Used |
37 | Right high-beam headlamp |
38 | Left high-beam headlamp |
39 | Not Used |
40 | Not Used |
41 | Vacuum pump |
42 | Radiator fan 1 |
43 | Not Used |
44 | Headlamp Washer System (if equipped) |
45 | Radiator fan 2 |
46 | Terminal 87/Main relay |
47 | Oxygen sensor |
48 | Fog lamps |
49 | Right-Hand Low Beam, High Intensity Discharge Headlamp |
50 | Left-Hand Low Beam, High Intensity Discharge Headlamp |
51 | Horn |
52 | Motor Indicator Lamp |
53 | Inside Rearview Mirror |
54 | Not Used |
55 | Power windows |
56 | Windshield washer |
57 | Not Used |
58 | Not Used |
59 | Secondary Air Induction |
60 | Heated mirrors |
61 | Not Used |
62 | Canister vent solenoid |
63 | Not Used |
64 | Not Used |
65 | Not Used |
66 | Not Used |
67 | Fuel system control module |
68 | Not Used |
69 | Battery sensor |
70 | Not Used |
71 | Not Used |
Relays | Usage |
1 | Not Used |
2 | Starter |
3 | Cooling Fan (LHU) |
4 | Front wiper (step 2) |
5 | Front Wiper (Step 1, Interval) |
6 | SAI Valve |
7 | Main relay |
8 | Not Used |
9 | Cooling Fan (LAF/LHU) |
10 | Cooling Fan (LAF) |
11 | Not Used |
12 | Cooling Fan (LHU) |
13 | Cooling Fan (LAF/LHU) |
14 | High Intensity Discharge Lamps |
15 | Ignition |
16 | Secondary AIR Pump |
17 | Window/Mirror defogger |
Instrument Panel Fuse Block
The instrument panel fuse block is located in the instrument panel, on the driver side of the vehicle.
Item | Usage |
1 | Suspension control module |
2 | Body control module 7 |
3 | Body control module 5 |
4 | Radio |
5 | Radio displays/ Parking assist/ Infotainment/Module tunnel control |
6 | Power Outlet 1 |
7 | Power Outlet 2 |
8 | Body control module 3 |
9 | Body control module 4 |
10 | Body control module 8 |
11 | Front Heater Ventilation Air Conditioning/Blower |
12 | Right-Hand Power Front Seat |
13 | Left-Hand Power Front Seat |
14 | Diagnostic Link Connector |
15 | Airbag |
16 | Trunk Release |
17 | Heating Ventilation Air Conditioning Controller |
18 | Service fuse/ Logistics relay |
19 | Not Used |
20 | Automatic occupant sensing |
21 | Instrument cluster |
22 | Discrete Logic Ignition Switch |
23 | Body control module 1 |
24 | Body control module 2 |
25 | OnStar |
26 | Power Outlet, Trunk |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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