GMC Terrain (2018-2019…) fuses and relays

Fuse box diagram (location and assignment of electrical fuses and relays) for GMC Terrain (2018, 2019-…)

Fuse box diagram: GMC Terrain (2018-2019…)


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.


Fuse box location

Instrument panel fuse box

The instrument panel fuse block is under the instrument panel on the driver sideThe location of the fuses in the passenger compartment: GMC Terrain (2018, 2019-...)

To access the fuses, press and release the latch near the top center square

Engine compartment fuse box

The engine compartment fuse box is located on the driver side of the engine compartmentThe location of the fuses in the engine compartment: GMC Terrain (2018, 2019-...)

Rear Compartment Fuse Block

The rear compartment fuse block is behind a trim panel on the side of the rear compartmentThe location of the fuses in the trunk: GMC Terrain (2018, 2019-...)

Remove the trim plate to access the fuse block

Fuse box diagrams 2018

Engine compartment

Under-hood fuse box diagram: GMC Terrain (2018)

 

Assignment of the fuses in the Engine compartment fuse box (2018, 2019)
FusesUsage
F01Starter 1
F02Starter 2
F03Lambda sensor 1
F04Engine control module
F05FlexFuel sensor
F06Transmission control module
F07-
F08Engine control module
F09Air conditioning clutch
F10Canister vent solenoid
F11Fuel system
F12Front heated seats
F13Afterboil pump
F14-
F15Lambda sensor 2
F162018: Fuel injectors-odd
2019: Ignition coils
F172018: Fuel injectors - even
2019: Engine control module
F18–/Selective catalytic reduction module (diesel only)
F19–/NOx soot sensor (diesel only)
F20DC DC converter 2
F21Shift control
F22Antilock brake pump
F232018: Front washer
2019: Front/Rear washer pump
F24-
F25-/Diesel fuel heater (diesel only)
F26-
F27Antilock brake valves
F28LD trailer
F29Rear window defogger
F30Mirror defroster
F31
F32Variable functions
F33
F34Horn
F352018: Vacuum pump
2019: Not Used
F36Right high-beam headlamp
F37Left high-beam headlamp
F38Automatic headlamp leveling
F39Fog lamps
F40
F41Transmission range control module
F42Motorized headlamp
F432018: Fuel pump
2019: Not Used
F44Interior rearview mirror
F452018: Canister vent solenoid
2019: Passenger side ventilated seat
F46Driver side Ventilated Seat
F47Steering column lock assembly
F48Rear wiper
F49
F50Heated steering wheel
F512018: Right headlamp
2019: Right daytime running lamp
F52Engine control module/ Transmission control
F53
F542018: Front wiper
2019: Not Used
F55Front wiper speed/ Control
F56
F572018: Left headlamp
2019: Left daytime running lamp
Relays
K01Starter solenoid
K02Air conditioning control
K032018: Not Used
2019: Engine control module
K04Wiper control
K05Starter Solenoid / Starter pinion
K06-/Fuel heater (diesel only)
K07
K08
K09Wiper speed
K10
K11
K12High-beam headlamps
K13Headlamps/Daytime running lamps
K14Run/Crank
K15Rear window defogger
*K16Horn
*K17Selective catalytic reduction
*K18Fog lamps
*K19Coolant pump
*K20
*K21Rear washer
*K22Front washer
*K23Wiper control
* PCB relays are not serviceable.

Instrument panel

Instrument panel fuse box diagram: GMC Terrain (2018)

Assignment of the fuses in the Instrument panel fuse box (2018, 2019)
FusesUsage
F01DC AC inverter
F02Front windows
F03Trailer brake
F04Heating, ventilation, and air conditioning blower
F05Body control module 2
F06CGM
F07
F08Body control module 3
F09Amplifier
F10
F11
F12
F13
F14Electronic shifter
F15Transmission control module
F16Front heated seats
F17Left data link connector
F18Body control module 7
F19Exterior mirror
F20Body control module 1
F21Body control module 4
F22Body control module 6
F23Electric steering column lock
F24Sensing and diagnostic module
F25Occupancy sensor
F26
F27Power seats
F28Rear windows
F29
F30Front heated seats switch
F31Steering wheel controls
F32Body control module 8
F33Heating, ventilation, and air conditioning
F34Passive entry, passive start
F35Liftgate latch
F362018: Shift charger
2019: Wireless charger module/USB accessory
F37Cigarette lighter
F38OnStar
F39Instrument panel USB
F40Camera module/ Liftgate module
F41Parking assist module
F42Radio
Relays
K01Deadbolt
K02Retained accessory power
K03Liftgate
K04
K05Logistics
Circuit Breakers
CB12018: Front auxiliary power outlet
2019: Not Used
CB2Auxiliary power outlet console

Rear Compartment Fuse Block

Trunk fuse box diagram: GMC Terrain (2018)

Assignment of the fuses in the Rear Compartment Fuse Block (2018, 2019)
Fuses Usage 
F1Exhaust fuel heater
F2Liftgate
F3Trailer auxiliary power
F42018: Power seats
2019: Passenger Power Seat
F5Memory seat module
F6Sunroof
F7Side blind zone alert
F8Trailer reverse lamps
F9Rear heated seat 1
F10Parking assist
F11Rear heated seat 2
F12
F13Trailer parking lamp
F14Right trailer turn signal lamp
F15Left parking lamp
F16Right parking lamp
F17
F18Left trailer turn signal lamp
F19All-wheel drive
F20Lumbar
F21Rear auxiliary power outlet
F22Rear drive unit
Relays
K1Right trailer stoplamp/Turn signal lamp
K2Trailer reverse lamps
K3Left trailer stoplamp/Turn signal lamp
K4Park lamps
K5Selective catalytic reduction (SCR) (diesel only)
GMC Terrain (2018-2019…) fuses and relays June 29, 2019 admin