GMC Terrain: Keys and Locks / Power Door Locks

Driver Door Key Lock Cylinder Access (In Case of Dead Battery)

To access the driver door key lock cylinder: Pull the door handle (1) to the open position and hold it open until cap removal is complete. Insert the key into the slot (3) on the bottom of the cap (2) and lift the key upward...

Delayed Locking

This feature delays the actual locking of the doors until five seconds after all doors are closed. Delayed locking can only be turned on when the Open Door Anti-Lockout feature has been turned off...

Other information:

GMC Terrain 2018-2024 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 2018-2024 Owners Manual: Rear Window Wiper/Washer

The ignition must be on or in the ACC/ACCESSORY position to operate the rear window wiper/ washer. Turn the end of the windshield wiper lever to operate the rear window wiper/washer. OFF : Turns the system off. INT : Intermittent wipes. ON : Slow wipes...