GMC Terrain: Bulb Replacement / Taillamps

GMC Terrain 2018-2025 Owners Manual / Vehicle Care / Bulb Replacement / Taillamps

To replace one of these lamps:

Open the liftgate. See Liftgate.
Remove the two screw caps and two screws from the taillamp assembly.
Pull the taillamp assembly out of the vehicle body.
Disconnect the lamp wiring harness.
Turn the bulb socket counterclockwise and pull it out.
Pull the bulb straight out of the socket.
Push the replacement bulb straight into the bulb socket.
Push the bulb socket in and turn it clockwise.
Reverse Steps 2–5 to reinstall the lamp assembly.

Front Turn Signal Lamps

To replace one of these bulbs: Open the hood. See Hood. Remove the bulb access cap from the top of the headlamp assembly by turning it counterclockwise...

License Plate Lamp

Lamp Assembly Bulb Assembly Bulb Socket Bulb Lamp Assembly To replace one of these bulbs: Open the liftgate partway. See Liftgate. Push the lamp assembly outboard to remove...

Other information:

GMC Terrain 2018-2025 Owners Manual: Diesel Engine Starting Procedure

The diesel engine starts differently than a gasoline engine. With the Keyless Access system, the RKE transmitter must be in the vehicle. Press ENGINE START/STOP and observe the wait-to-start light. See Wait-to-Start Light 0 139. This light may not come on if the engine is warm...

GMC Terrain 2018-2025 Owners Manual: OSS Notice Information