GMC Terrain: Interior Lighting / 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.
The knob for this feature is on the instrument panel beside the steering column.
Push the knob in all the way until it extends out and then turn the knob clockwise or counterclockwise to brighten or dim the lights.
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...
Other information:
GMC Terrain 2018-2023 Owners Manual: Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated...
GMC Terrain 2018-2023 Owners Manual: If the On Indicator Is Lit for a Child Restraint
The passenger sensing system is designed to turn off the front outboard passenger frontal airbag if the system determines that an infant is present in a child restraint. If a child restraint has been installed and the ON indicator is lit: Turn the vehicle off...
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Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not require immediate action can be acknowledged and cleared by pressing V. The messages that require immediate action cannot be cleared until that action is performed.
