GMC Terrain: Bulb Replacement / Taillamps

To replace one of these lamps:

  1. Open the liftgate. See Liftgate.

    GMC Terrain. Taillamps

  2. Remove the two screw caps and two screws from the taillamp assembly.
  3. Pull the taillamp assembly out of the vehicle body.
  4. Disconnect the lamp wiring harness.

    GMC Terrain. Taillamps

  5. Turn the bulb socket counterclockwise and pull it out.
  6. Pull the bulb straight out of the socket.
  7. Push the replacement bulb straight into the bulb socket.
  8. Push the bulb socket in and turn it clockwise.
  9. 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: Distracted Driving


    Distraction comes in many forms and can take your focus from the task of driving. Exercise good judgment and do not let other activities divert your attention away from the road. Many local governments have enacted laws regarding driver distraction...

    GMC Terrain 2018-2026 Owners Manual: Replacing Seat Belt System Parts after a Crash


    Warning A crash can damage the seat belt system in the vehicle. A damaged seat belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the seat belt systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible...

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