GMC Terrain: Interior Lighting / Courtesy Lamps and Dome Lamps
Courtesy Lamps
The courtesy lamps come on when
any door is opened and the 
OFF
indicator light is turned off. See
Dome Lamps.
Dome Lamps
The dome lamp controls are in the overhead console.
To operate, press the following buttons:
OFF : Press to turn off
the
dome lamps when a door is open.
An indicator light on the button will
turn on when the dome lamp
override is activated. Press 
OFF again to deactivate this feature
and the indicator light will turn off.
The dome lamps will come on when
doors are opened.
ON/OFF : Press to turn
the dome
lamps on manually.
Instrument Panel Illumination Control
The brightness of the instrument
cluster display, infotainment display
and controls, steering wheel
controls, and all other illuminated
controls, as well as feature status
indicators can be adjusted...
Reading Lamps
There are reading lamps on the
overhead console and over the rear
passenger doors. These lamps
come on when any door is opened.
Front Reading Lamps
The front reading lamps are in the
overhead console...
Other information:
GMC Terrain 2018-2026 Owners Manual: Driving on Wet Roads
Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and deep-standing or flowing water. Warning Wet brakes can cause crashes...
GMC Terrain 2018-2026 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...
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Categories
Vehicle Personalization
The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available.
For System, Apps, and Personal features and functions, see “Settings” in the infotainment manual.
To access the vehicle personalization menu:
Touch the Settings icon on the Home Page of the infotainment display. Touch Vehicle to display a list of available options. Touch to select the desired feature setting. Touch
or R to turn a
feature
off or on.
Touch 
to go to the top
level
of the Settings menu.
