GMC Terrain: Electrical System / 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.
The vehicle may not be equipped with all of the fuses and relays shown.
Fuses Usage
F1 Exhaust fuel heater
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 –
F18 Left trailer stoplamp/Turn signal lamp
F19 All-wheel drive
F20 Lumbar
F21 Rear auxiliary power outlet
F22 Rear drive unit
Relays Usage
K1 Right trailer stoplamp/Turn signal lamp
K2 Trailer reverse lamps
K3 Left trailer stoplamp/Turn signal lamp
K4 Parking lamps
K5 Selective catalytic reduction (SCR) – (diesel only)
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...
Other information:
GMC Terrain 2018-2025 Owners Manual: OnStar Overview
Voice Command Button Blue OnStar Button Red Emergency Button This vehicle may be equipped with a comprehensive, in-vehicle system that can connect to an OnStar Advisor for Emergency, Security, Navigation, Connections, and Diagnostics Services. OnStar services may require a paid service plan and data plan. OnStar requires the vehicle battery and electrical system, cellular servic..
GMC Terrain 2018-2025 Owners Manual: Bulb Replacement
For the proper type of replacement bulbs, or any bulb changing procedure not listed in this section, contact your dealer. Caution Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system. Halogen Bulbs Warning Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could..