GMC Terrain: Warning Lights, Gauges, and Indicators / Security Light

GMC Terrain 2018-2026 Owners Manual / Instruments and Controls / Warning Lights, Gauges, and Indicators / Security Light

GMC Terrain. Security Light

The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off.

If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation.

Diesel Exhaust Fluid (DEF) Warning Light

This light, a Driver Information Center (DIC) Message, and a chime come on when there is an issue with the DEF. If the DEF issue has not been corrected, the light will continue to flash...

High-Beam On Light, Front Fog Lamp Light and Lamps On Reminder

High-Beam On Light This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer. IntelliBeam Light This light comes on when the IntelliBeam system, if equipped, is enabled...

Other information:

GMC Terrain 2018-2026 Owners Manual: 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. Press the lamp lenses to turn the front reading lamps on or off...

GMC Terrain 2018-2026 Owners Manual: Cruise Control. System Operation