GMC Terrain: Bulb Replacement / LED Lighting
This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.
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 2018-2025 Owners Manual: Water in Fuel (Diesel)
Improper fuel tank inspection or cleaning, or contaminated fuel from suppliers, can cause water to be pumped into the fuel tank along with the diesel fuel. If a WATER IN FUEL - CONTACT SERVICE message displays, the water must be drained immediately...
GMC Terrain 2018-2025 Owners Manual: Automatic Reversal System
The sunroof has an automatic reversal system that is only active when the sunroof is operated in express-close mode. If an object is in the path while express closing, the reversal system will detect an object, stop, and open the sunroof again. If frost or other conditions prevent closing, override the feature by closing the sunroof in manual mode...
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