GMC Terrain: Bulb Replacement / LED Lighting

High Intensity Discharge (HID) Lighting

Warning The High Intensity Discharge (HID) lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured...

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...

Other information:

GMC Terrain 2018-2026 Owners Manual: 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. Pull the lamp assembly down to remove it from the liftgate. Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3)...

GMC Terrain 2018-2026 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...