GMC Terrain: 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 2018-2026 Owners Manual: Gasoline
Warning Never fill a portable fuel container while it is in the vehicle. Static electricity discharge from the container can ignite the fuel vapor. You can be badly burned and the vehicle damaged if this occurs. To help avoid injury to you and others: Dispense fuel only into approved containers...
GMC Terrain 2018-2026 Owners Manual: Emergency
Emergency Services require an active safety and security plan. With Automatic Crash Response, built-in sensors can automatically alert a specially trained OnStar Advisor who is immediately connected in to the vehicle to help. Press for a priority connection to an OnStar Advisor who can contact emergency service providers, direct them to your exact location, and relay important informat..
Copyright © 2026 www.gmcterrain2.com