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In this article, we consider the second-generation GMC Terrain, available from 2018 to the present. Here you will find fuse box diagrams of GMC Terrain 2018, 2019, 2020, 2021, and 2022, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
See other GMC Terrain:
Fuse Layout GMC Terrain 2018-2022…
Cigar lighter (power outlet) fuses in the GMC Terrain are the fuse #37 (Cigarette lighter), circuit breakers CB1 (2018: Front auxiliary power outlet), CB2 (Auxiliary power outlet console) in the Instrument panel fuse box, and fuse #F21 (Rear auxiliary power outlet) in the Rear Compartment Fuse Block.
Table of Contents
Fuse box location
Fuse box location
Instrument panel
The instrument panel fuse block is under the instrument panel on the driver side.
To access, press and release the latch near the top center square.
Engine compartment
The engine compartment fuse box is located on the driver side of the engine compartment.
Rear Compartment
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.
Fuse box diagrams
Fuse box diagrams
Engine compartment
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Assignment of the fuses in the engine compartment (2018-2022)
| № | Usage |
|---|---|
| F01 | Starter 1 |
| F02 | Starter 2 |
| F03 | Lambda sensor 1 |
| F04 | Engine control module |
| F05 | 2018-2020: FlexFuel sensor 2021: FlexFuel sensor/Aero shutter 2022: Aero Shutter/ Water Pump |
| F06 | Transmission control module |
| F07 | - |
| F08 | 2018-2021: 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 | 2018: Fuel injectors-odd 2019-2022: Ignition coils |
| F17 | 2018: Fuel injectors - even. 2019-2022: Engine control module |
| F18 | 2018-2020: Selective catalytic reduction module (diesel only) 2022: Engine Control Module |
| F19 | NOx soot sensor (diesel only) |
| F20 | DC DC converter 2 |
| F21 | Shift control |
| F22 | Antilock brake pump |
| F23 | 2018: Front washer. 2019-2022: 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 | 2018: Vacuum pump. |
| F36 | 2018-2021: Right high-beam headlamp 2022: Headlamps / Daytime Running Lamps Right |
| F37 | 2018-2021: Left high-beam headlamp |
| F38 | Automatic headlamp leveling |
| F39 | 2018-2021: Fog lamps |
| F40 | - |
| F41 | Transmission range control module |
| F42 | Motorized headlamp |
| F43 | 2018: Fuel pump. 2019-2022: Not Used |
| F44 | Interior rearview mirror |
| F45 | 2018: Canister vent solenoid. 2019-2022: Passenger side ventilated seat |
| F46 | Driver side Ventilated Seat |
| F47 | Steering column lock assembly |
| F48 | Rear wiper |
| F49 | - |
| F50 | Heated steering wheel |
| F51 | 2018: Right headlamp. 2019-2021: Right daytime running lamp |
| F52 | Engine control module/ Transmission control |
| F53 | - |
| F54 | 2018: Front wiper. |
| F55 | Front wiper speed/ Control |
| F56 | - |
| F57 | 2018: Left headlamp. 2019-2021: Left daytime running lamp 2022: Headlamps / Daytime Running Lamps Left |
| Relays | |
| K01 | Starter solenoid |
| K02 | Air conditioning control |
| K03 | 2019-2022: Engine control module |
| K04 | Wiper control |
| K05 | Starter Solenoid / Starter pinion |
| K06 | -/Fuel heater (diesel only) |
| K07 | - |
| K08 | - |
| K09 | Wiper speed |
| K10 | - |
| K11 | - |
| K12 | 2018-2021: High-beam headlamps 2022: Headlamps / Daytime Running Lamps Right |
| K13 | 2018-2021: Headlamps / Daytime running lamps 2022: Headlamps / Daytime Running Lamps Left |
| 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 |
| *K22 | Front washer |
| *K23 | Wiper control |
| * PCB relays are not serviceable. |
Instrument panel
| № | Usage |
|---|---|
| F01 | DC AC inverter |
| F02 | Front windows |
| F03 | Trailer brake |
| F04 | Heating, ventilation, and air conditioning blower |
| F05 | 2018-2020: Body control module 2 |
| F06 | Central gateway module (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 | 2018-2020: Body control module 1 |
| F21 | Body control module 4 |
| F22 | 2018-2020: Body control module 6 |
| F23 | 2018-2020: 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 | 2018: Shift charger. 2019-2022: Wireless charger module/ USB accessory |
| F37 | Cigarette lighter |
| F38 | OnStar |
| F39 | Instrument panel USB |
| F40 | Camera module/ Liftgate module |
| F41 | 2018-2020: Parking assist module 2021-2022: Park assist module/ Center stack display/ Heating, ventilation and air conditioner display/ Universal garage door opener/ Overhead control switchbank |
| F42 | Radio |
| Relays | |
| K01 | 2018-2019: Deadbolt |
| K02 | Retained accessory power |
| K03 | Liftgate |
| K04 | - |
| K05 | 2018-2020: Logistics |
| Circuit Breakers | |
| CB1 | 2018: Front auxiliary power outlet. |
| CB2 | 2018-2020: Auxiliary power outlet console |
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Rear Compartment
| № | Usage |
|---|---|
| F1 | 2018-2019: Exhaust fuel heater. 2020: Exhaust fuel heater/ Selective catalytic reduction power module (diesel only) 2022: Power Seat |
| F2 | Liftgate |
| F3 | Trailer auxiliary power |
| F4 | 2018: Power seats. 2019-2021: Passenger Power Seat |
| 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 | 2018-2021: Left parking lamp |
| F16 | 2018-2021: Right parking lamp |
| F17 | 2020-2022: Video processing module |
| F18 | Left trailer turn signal lamp |
| F19 | All-wheel drive |
| F20 | Lumbar |
| F21 | Rear auxiliary power outlet |
| F22 | Rear drive unit |
| Relays | |
| K1 | Right trailer stoplamp/Turn signal lamp |
| K2 | Trailer reverse lamps |
| K3 | Left trailer stoplamp/Turn signal lamp |
| K4 | Park lamps |
| K5 | 2018-2019: Selective catalytic reduction (SCR) (diesel only). 2020: Exhaust fuel heater/Selective catalytic reduction power module (diesel only) |
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