Page Contents:
In this article, you will find information about the fuses of GMC Terrain (models 2018, 2019, 2020, and 2021), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in GMC Terrain
The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the electrical load current is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems.
Caution!
- Replace a bad fuse with a new one of the identical size and rating.
- Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
Location of Fuse Boxes
Engine Compartment Fuse Block:
To remove the fuse block cover, squeeze the clips on the cover and lift it straight up.
Instrument Panel Fuse Block:
The instrument panel fuse block is under the instrument panel on the driver side.
- To access the fuses, press and release the latch near the top center square.
- Apply pressure to the two retaining tabs on the sides of the cover, until the two retaining tabs clear the sides of the instrument panel.
- Allow the panel to move downward and out of the way.
- To reinstall the cover, reverse the steps
Rear Compartment Fuse Block:
The rear compartment fuse block is behind a trim panel on the side of the rear compartment. Remove the trim plate to access the fuse block.
Electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.
If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart.
Fuse Box Diagrams
2018
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| F01 | Starter 1 |
| F02 | Starter 2 |
| F03 | Lambda sensor 1 |
| F04 | Engine control module |
| F05 | FlexFuel sensor |
| F06 | Transmission control module |
| F07 | - |
| F08 | Engine control module |
| F09 | Air conditioning clutch |
| F10 | Canister vent |
| F11 | Fuel system |
| F12 | Front heated seats |
| F13 | Afterboil pump |
| F14 | - |
| F15 | Lambda sensor 2 |
| F16 | Fuel injectors - odd |
| F17 | Fuel injectors - even |
| F18 | -/Selective catalytic reduction module (diesel only) |
| F19 | -/NOx soot sensor (diesel only) |
| F20 | DC DC converter 2 |
| F21 | Shift control |
| F22 | Antilock brake pump |
| F23 | Front washer |
| F24 | - |
| F25 | -/Diesel fuel heater (diesel only) |
| F26 | - |
| F27 | Antilock brake VAL |
| F28 | LD trailer |
| F29 | Rear window defogger |
| F30 | Mirror defroster |
| F31 | - |
| F32 | Variable functions |
| F33 | - |
| F34 | Horn |
| F35 | Vacuum pump |
| F36 | Right high-beam headlamp |
| F37 | Left high-beam headlamp |
| F38 | Automatic headlamp leveling |
| F39 | Fog lamps |
| F40 | - |
| F41 | Transmission range control module |
| F42 | Motorized headlamp |
| F43 | Fuel pump |
| F44 | Interior rearview mirror |
| F45 | Canister vent solenoid |
| F46 | Driver side Ventilated Seat |
| F47 | Steering column lock assembly |
| F48 | Rear wiper |
| F49 | - |
| F50 | Heated steering wheel |
| F51 | Right headlamp |
| F52 | Engine control module / Transmission control |
| F53 | - |
| F54 | Front wiper |
| F55 | Front wiper speed / Control |
| F56 | - |
| F57 | Left headlamp |
| K01 | Starter solenoid |
| K02 | Air conditioning control |
| K03 | - |
| K04 | Wiper control |
| K05 | Starter Solenoid |
| K06 | -/Fuel heater (diesel only) |
| K07 | - |
| K08 | - |
| K09 | Wiper speed |
| K10 | - |
| K11 | - |
| K12 | High-beam headlamps |
| K13 | Headlamps / Daytime running lamps |
| K14 | Run/Crank |
| K15 | Rear window defogger |
| *K16 | Horn |
| *K17 | Selective catalytic reduction |
| *K18 | Fog lamps |
| *K19 | Coolant pump |
| *K20 | - |
| *K21 | Rear washer |
| *K22 | Front washer |
| *K23 | Wiper control |
| * PCB relays are not serviceable. | |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| F01 | DC AC inverter |
| F02 | Front windows |
| F03 | Trailer brake |
| F04 | Heating, ventilation, and air conditioning blower |
| F05 | Body control module 2 |
| F06 | CGM |
| F07 | - |
| F08 | Body control module 3 |
| F09 | Amplifier |
| F10 | - |
| F11 | - |
| F12 | - |
| F13 | - |
| F14 | Electronic shifter |
| F15 | Transmission control module |
| F16 | Front heated seats |
| F17 | Left data link connector |
| F18 | Body control module 7 |
| F19 | Exterior mirror |
| F20 | Body control module 1 |
| F21 | Body control module 4 |
| F22 | Body control module 6 |
| F23 | Electric steering column lock |
| F24 | Sensing and diagnostic module |
| F25 | Occupancy sensor |
| F26 | - |
| F27 | Power seats |
| F28 | Rear windows |
| F29 | - |
| F30 | Front heated seats switch |
| F31 | Steering wheel controls |
| F32 | Body control module 8 |
| F33 | Heating, ventilation, and air conditioning |
| F34 | Passive entry, passive start |
| F35 | Liftgate latch |
| F36 | Shift charger |
| F37 | Cigarette lighter |
| F38 | OnStar |
| F39 | instrument panel USB |
| F40 | Camera module / Liftgate module |
| F41 | Parking assist module |
| F42 | Radio |
| K01 | Deadbolt |
| K02 | Retained accessory power |
| K03 | Liftgate |
| K04 | - |
| K05 | Logistics |
| CB1 | Front auxiliary power outlet |
| CB2 | Auxiliary power outlet console |
Rear Compartment Fuse Block
| № | Usage |
|---|---|
| F01 | Exhaust fuel heater |
| F02 | Liftgate |
| F3 | Trailer auxiliary power |
| F4 | Power seats |
| F5 | Memory seat module |
| F6 | Sunroof |
| F7 | Side blind zone alert |
| F8 | Trailer reverse lamps |
| F9 | Rear heated seat 1 |
| F10 | Parking assist |
| F11 | Rear heated seat 2 |
| F12 | - |
| F13 | Trailer parking lamp |
| F14 | Right trailer turn signal lamp |
| F15 | Left parking lamp |
| F16 | Right parking lamp |
| F17 | - |
| F18 | Left trailer turn signal lamp |
| F19 | All-wheel drive |
| F20 | Lumbar |
| F21 | Rear auxiliary power outlet |
| F22 | Rear drive unit |
| K1 | Right trailer stoplamp / Turn signal lamp |
| K2 | Trailer reverse lamps |
| K3 | Left trailer stoplamp / Turn signal lamp |
| K4 | Park lamps |
| K5 | Selective catalytic reduction (SCR) - (diesel only) |
2019
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| F01 | Starter 1 |
| F02 | Starter 2 |
| F03 | Lambda sensor 1 |
| F04 | Engine control module |
| F05 | FlexFuel sensor |
| F06 | Transmission control module |
| F07 | - |
| F08 | Engine control module |
| F09 | Air conditioning clutch |
| F10 | Canister vent solenoid |
| F11 | Fuel system |
| F12 | Front heated seats |
| F13 | Afterboil pump |
| F14 | - |
| F15 | Lambda sensor 2 |
| F16 | Ignition coils |
| F17 | Engine control module |
| F18 | Selective catalytic reduction module (diesel only) |
| F19 | NOx soot sensor (diesel only) |
| F20 | DC DC converter 2 |
| F21 | Shift control |
| F22 | Antilock brake pump |
| F23 | Front / Rear washer pump |
| F24 | - |
| F25 | Diesel fuel heater (diesel only) |
| F26 | - |
| F27 | Antilock brake valves |
| F28 | LD trailer |
| F29 | Rear window defogger |
| F30 | Mirror defroster |
| F31 | - |
| F32 | Variable functions |
| F33 | - |
| F34 | Horn |
| F35 | - |
| F36 | Right high-beam headlamp |
| F37 | Left high-beam headlamp |
| F38 | Automatic headlamp leveling |
| F39 | Fog lamps |
| F40 | - |
| F41 | Transmission range control module |
| F42 | Motorized headlamp |
| F43 | - |
| F44 | Interior rearview mirror |
| F45 | Passenger side ventilated seat |
| F46 | Driver side ventilated seat |
| F47 | Steering column lock assembly |
| F48 | Rear wiper |
| F49 | - |
| F50 | Heated steering wheel |
| F51 | Right daytime running lamp |
| F52 | Engine control module / Transmission control |
| F53 | |
| F54 | - |
| F55 | Front wiper speed / Control |
| F56 | - |
| F57 | Left daytime running lamp |
| K01 | Starter solenoid |
| K02 | Air conditioning control |
| K03 | Engine control module |
| K04 | Front wiper control |
| K05 | Starter pinion |
| K06 | Fuel heater (diesel only) |
| K07 | - |
| K08 | - |
| K09 | Front wiper speed |
| K10 | - |
| K11 | - |
| K12 | High-beam headlamps |
| K13 | Headlamps / Daytime running lamps |
| K14 | Run/Crank |
| K15 | Rear window defogger |
| *K16 | Horn |
| *K17 | Selective catalytic reduction |
| *K18 | Fog lamps |
| *K19 | Coolant pump |
| *K20 | - |
| *K21 | Rear washer pump |
| *K22 | Front washer pump |
| *K23 | Rear wiper control |
| * PCB relays are not serviceable. | |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| F01 | DC AC inverter |
| F02 | Front windows |
| F03 | Trailer brake |
| F04 | Heating, ventilation, and air conditioning blower |
| F05 | Body control module 2 |
| F06 | CGM |
| F07 | - |
| F08 | Body control module 3 |
| F09 | Amplifier |
| F10 | - |
| F11 | - |
| F12 | - |
| F13 | - |
| F14 | Electronic shifter |
| F15 | Transmission control module |
| F16 | Front heated seats |
| F17 | Left data link connector |
| F18 | Body control module 7 |
| F19 | Exterior mirror |
| F20 | Body control module 1 |
| F21 | Body control module 4 |
| F22 | Body control module 6 |
| F23 | Electric steering column lock |
| F24 | Sensing and diagnostic module |
| F25 | Occupancy sensor |
| F26 | - |
| F27 | Power seats |
| F28 | Rear windows |
| F29 | - |
| F30 | Front heated seats switch |
| F31 | Steering wheel controls |
| F32 | Body control module 8 |
| F33 | Heating, ventilation, and air conditioning |
| F34 | Passive entry, passive start |
| F35 | Liftgate latch |
| F36 | Wireless charger module / USB accessory |
| F37 | Cigarette lighter |
| F38 | OnStar |
| F39 | Instrument panel USB |
| F40 | Camera module / Liftgate module |
| F41 | Park assist module |
| F42 | Radio |
| K01 | Deadbolt |
| K02 | Retained accessory power |
| K03 | Liftgate |
| K04 | - |
| K05 | Logistics |
| CB1 | - |
| CB2 | Auxiliary power outlet console |
Rear Compartment Fuse Block
| № | Usage |
|---|---|
| F1 | Exhaust fuel heater / Selective catalytic reduction power module (diesel only) |
| F2 | Liftgate |
| F3 | Trailer auxiliary power |
| F4 | Passenger Power Seat |
| F5 | Memory seat module |
| F6 | Sunroof |
| F7 | Side blind zone alert |
| F8 | Trailer reverse lamps |
| F9 | Rear heated seat 1 |
| F10 | Park Lamps |
| F11 | Rear heated seat 2 |
| F12 | - |
| F13 | Trailer parking lamp |
| F14 | Right trailer stoplamp / Turn signal lamp |
| F15 | Left parking lamp |
| F16 | Right parking lamp |
| F17 | Video processing module |
| F18 | Left trailer stoplamp / Turn signal lamp |
| F19 | All-wheel drive |
| F20 | Lumbar |
| F21 | Rear auxiliary power outlet |
| F22 | Rear drive unit |
| K1 | Right trailer stoplamp / Turn signal lamp |
| K2 | Trailer reverse lamps |
| K3 | Left trailer stoplamp / Turn signal lamp |
| K4 | Parking lamps |
| K5 | Exhaust fuel heater / Selective catalytic reduction power module (diesel only) |
2020
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| F1 | Starter 1 |
| F2 | Starter 2 |
| F3 | Lambda sensor 1 |
| F4 | Engine control module |
| F5 | FlexFuel sensor |
| F6 | Transmission control module |
| F7 | - |
| F8 | Engine control module |
| F9 | Air conditioning clutch |
| F10 | Canister vent solenoid |
| F11 | Fuel system |
| F12 | Front heated seats |
| F13 | Engine coolant pump |
| F14 | - |
| F15 | Lambda sensor 2 |
| F16 | Ignition coils |
| F17 | Engine control module |
| F18 | Selective catalytic reduction module (diesel only) |
| F19 | NOx soot sensor (diesel only) |
| F20 | DC DC converter 2 |
| F21 | Shift control |
| F22 | Antilock brake pump |
| F23 | Front / Rear washer pump |
| F24 | - |
| F25 | Diesel fuel heater (diesel only) |
| F26 | - |
| F27 | Antilock brake valves |
| F28 | LD trailer |
| F29 | Rear window defogger |
| F30 | Mirror defroster |
| F31 | - |
| F32 | Variable functions |
| F33 | - |
| F34 | Horn |
| F35 | - |
| F36 | Right high-beam headlamp |
| F37 | Left high-beam headlamp |
| F38 | Automatic headlamp leveling |
| F39 | Fog lamps |
| F40 | - |
| F41 | Transmission range control module |
| F42 | Motorized headlamp |
| F43 | - |
| F44 | Interior rearview mirror |
| F45 | Passenger side ventilated seat |
| F46 | Driver side ventilated seat |
| F47 | Steering column lock assembly |
| F48 | Rear wiper |
| F49 | - |
| F50 | Heated steering wheel |
| F51 | Right daytime running lamp |
| F52 | Engine control module / Transmission control |
| F53 | - |
| F54 | - |
| F55 | Front wiper speed / Control |
| F56 | - |
| F57 | Left daytime running lamp |
| K01 | Starter solenoid |
| K02 | Air conditioning control |
| K03 | Engine control module |
| K04 | Front wiper control |
| K05 | Starter solenoid 2 |
| K06 | Fuel heater (diesel only) |
| K07 | - |
| K08 | - |
| K09 | Front wiper speed |
| K10 | - |
| K11 | _ |
| K12 | High-beam headlamps |
| K13 | Headlamps / Daytime running lamps |
| K14 | Run/Crank |
| K15 | Rear window defogger |
| *K16 | Horn |
| *K17 | Selective catalytic reduction (diesel only) |
| *K18 | Fog lamps |
| *K19 | Coolant pump |
| *K20 | - |
| *K21 | Rear washer pump |
| *K22 | Front washer pump |
| *K23 | Rear wiper control |
| *PCB relays are not serviceable. | |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| F01 | DC AC inverter |
| F02 | Front windows |
| F03 | Trailer brake |
| F04 | Heating, ventilation, and air conditioning blower |
| F05 | Body control module 2 |
| F06 | CGM |
| F07 | - |
| F08 | Body control module 3 |
| F09 | Amplifier |
| F10 | - |
| F11 | - |
| F12 | - |
| F13 | - |
| F14 | Electronic shifter |
| F15 | Transmission control module |
| F16 | Front heated seats |
| F17 | Left data link connector |
| F18 | Body control module 7 |
| F19 | Exterior mirror |
| F20 | Body control module 1 |
| F21 | Body control module 4 |
| F22 | Body control module 6 |
| F23 | Electric steering column lock |
| F24 | Sensing and diagnostic module |
| F25 | Occupancy sensor |
| F26 | - |
| F27 | Power seats |
| F28 | Rear windows |
| F29 | - |
| F30 | Front heated seats switch |
| F31 | Steering wheel controls |
| F32 | Body control module 8 |
| F33 | Heating, ventilation, and air conditioning |
| F34 | Passive entry, passive start |
| F35 | Liftgate latch |
| F36 | Wireless charger module / USB accessory |
| F37 | Cigarette lighter |
| F38 | OnStar |
| F39 | Instrument panel USB |
| F40 | Camera module/ Liftgate module |
| F41 | Park assist module |
| F42 | Radio |
| K01 | - |
| K02 | Retained accessory power |
| K03 | Liftgate |
| K04 | - |
| K05 | Logistics |
| CB1 | - |
| CB2 | Auxiliary power outlet console |
Rear Compartment Fuse Block
| № | Usage |
|---|---|
| F1 | Exhaust fuel heater / Selective catalytic reduction power module (diesel only) |
| F2 | Liftgate |
| F3 | Trailer auxiliary power |
| F4 | Passenger Power Seat |
| F5 | Memory seat module |
| F6 | Sunroof |
| F7 | Side blind zone alert |
| F8 | Trailer reverse lamps |
| F9 | Rear heated seat 1 |
| F10 | Park Lamps |
| F11 | Rear heated seat 2 |
| F12 | - |
| F13 | Trailer parking lamp |
| F14 | Right trailer stoplamp / Turn signal lamp |
| F15 | Left parking lamp |
| F16 | Right parking lamp |
| F17 | Video processing module |
| F18 | Left trailer stoplamp / Turn signal lamp |
| F19 | All-wheel drive |
| F20 | Lumbar |
| F21 | Rear auxiliary power outlet |
| F22 | Rear drive unit |
| K1 | Right trailer stoplamp / Turn signal lamp |
| K2 | Trailer reverse lamps |
| K3 | Left trailer stoplamp / Turn signal lamp |
| K4 | Parking lamps |
| K5 | Exhaust fuel heater / Selective catalytic reduction power module (diesel only) |
2021
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| F01 | Starter 1 |
| F02 | Starter 2 |
| F03 | Lambda sensor 1 |
| F04 | Engine control module |
| F05 | FlexFuel sensor / Aero shutter |
| F06 | Transmission control module |
| F07 | - |
| F08 | Engine control module |
| F09 | Air conditioning clutch |
| F10 | Canister vent solenoid |
| F11 | Fuel system |
| F12 | Front heated seats |
| F13 | Engine coolant pump |
| F14 | - |
| F15 | Lambda sensor 2 |
| F16 | Ignition coils |
| F17 | Engine control module |
| F18 | - |
| F19 | - |
| F20 | DC DC converter 2 |
| F21 | Shift control |
| F22 | Antilock brake pump |
| F23 | Front/Rear washer pump |
| F24 | - |
| F25 | - |
| F26 | - |
| F27 | Antilock brake valves |
| F28 | LD trailer |
| F29 | Rear window defogger |
| F30 | Mirror defroster |
| F31 | - |
| F32 | Variable functions |
| F33 | - |
| F34 | Horn |
| F35 | - |
| F36 | Right high-beam headlamp |
| F37 | Left high-beam headlamp |
| F38 | Automatic headlamp leveling |
| F39 | Fog lamps |
| F40 | - |
| F41 | Transmission range control module |
| F42 | Motorized headlamp |
| F43 | - |
| F44 | Interior rearview mirror |
| F45 | Passenger side ventilated seat |
| F46 | Driver side ventilated seat |
| F47 | Steering column lock assembly |
| F48 | Rear wiper |
| F49 | - |
| F50 | Heated steering wheel |
| F51 | Right daytime running lamp |
| F52 | Engine control module / Transmission control |
| F53 | - |
| F54 | - |
| F55 | Front wiper speed / Control |
| F56 | - |
| F57 | Left daytime running lamp |
| K01 | Starter solenoid |
| K02 | Air conditioning control |
| K03 | Engine control module |
| K04 | Front wiper control |
| K05 | Starter solenoid 2 |
| K06 | - |
| K07 | - |
| K08 | - |
| K09 | Front wiper speed |
| K10 | - |
| K11 | - |
| K12 | High-beam headlamps |
| K13 | Headlamp / Daytime running lamps |
| K14 | Run/Crank |
| K15 | Rear window defogger |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| F01 | DC AC inverter |
| F02 | Front windows |
| F03 | Trailer brake |
| F04 | Heating, ventilation, and air conditioning blower |
| F05 | - |
| F06 | Central gateway module |
| F07 | - |
| F08 | Body control module 3 |
| F09 | Amplifier |
| F10 | - |
| F11 | - |
| F12 | - |
| F13 | - |
| F14 | Electronic shifter |
| F15 | Transmission control module |
| F16 | Front heated seats |
| F17 | Left data link connector |
| F18 | Body control module 7 |
| F19 | Exterior mirror |
| F20 | - |
| F21 | Body control module 4 |
| F22 | - |
| F23 | - |
| F24 | Sensing and diagnostic module |
| F25 | Occupancy sensor |
| F26 | - |
| F27 | Power seats |
| F28 | Rear windows |
| F29 | - |
| F30 | Front heated seats switch |
| F31 | Steering wheel controls |
| F32 | Body control module 8 |
| F33 | Heating, ventilation, and air conditioning |
| F34 | Passive entry, passive start |
| F35 | Liftgate latch |
| F36 | Wireless charger module / USB accessory |
| F37 | Cigarette lighter |
| F38 | OnStar |
| F39 | Instrument panel USB |
| F40 | Camera module / Liftgate module |
| F41 | Park assist module / Center stack display / Heating, ventilation and air conditioner display / Universal garage door opener / Overhead control switchbank |
| F42 | Radio |
| K01 | - |
| K02 | Retained accessory power |
| K03 | Liftgate |
| K04 | - |
| K05 | - |
| CB1 | - |
| CB2 | - |
Rear Compartment Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Liftgate |
| F3 | Trailer auxiliary power |
| F4 | Power seat co-driver |
| F5 | Memory seat module |
| F6 | Sunroof |
| F7 | Side blind zone alert |
| F8 | Trailer reverse lamps |
| F9 | Rear heated seat 1 |
| F10 | Park lamps |
| F11 | Rear heated seat 2 |
| F12 | - |
| F13 | Trailer parking lamp |
| F14 | Right trailer stoplamp / Turn signal lamp |
| F15 | Left parking lamp |
| F16 | Right parking lamp |
| F17 | Video processing module |
| F18 | Left trailer stoplamp / Turn signal lamp |
| F19 | All-wheel drive |
| F20 | Lumbar |
| F21 | Rear auxiliary power outlet |
| F22 | Rear drive unit |
| K1 | Right trailer stoplamp / Turn signal lamp |
| K2 | Trailer reverse lamps |
| K3 | Left trailer stoplamp / Turn signal lamp |
| K4 | Park lamps |
| K5 | - |