GMC Terrain: Lighting / Exterior Lighting

Lighting

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Exterior Lamp Controls

The exterior lamp control is on the instrument panel to the left of the steering column. There are four positions. : Turns the exterior lamps off and deactivates the AUTO mode...

Other information:

GMC Terrain 2018-2025 Owners Manual: If the Off Indicator Is Lit for an Adult-Sized Occupant

If a person of adult size is sitting in the front outboard passenger seat, but the OFF indicator is lit, it could be because that person is not sitting properly in the seat or that the child restraint locking feature is engaged. Use the following steps to allow the system to detect that person and enable the front outboard passenger frontal airbag: Turn the vehicle off...

GMC Terrain 2018-2025 Owners Manual: Seat Belt Extender

If the vehicle's seat belt will fasten around you, you should use it. But if a seat belt is not long enough, your dealer will order you an extender. When you go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you...