GMC Terrain: Warning Lights, Gauges, and Indicators / Diesel Exhaust Fluid (DEF) Warning Light

GMC Terrain 2018-2026 Owners Manual / Instruments and Controls / Warning Lights, Gauges, and Indicators / Diesel Exhaust Fluid (DEF) Warning Light

GMC Terrain. 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. The vehicle's speed may also be limited. See Diesel Exhaust Fluid.

Low Fuel Warning Light

For the base level cluster, this light comes on when the fuel tank is low on fuel. The light turns off when fuel is added. If it does not, have the vehicle serviced...

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...

Other information:

GMC Terrain 2018-2026 Owners Manual: Windshield Replacement

Driver Assistance Systems If the windshield needs to be replaced and the vehicle is equipped with a front camera sensor for the Driver Assistance Systems, a GM replacement windshield is recommended. The replacement windshield must be installed according to GM specifications for proper alignment...

GMC Terrain 2018-2026 Owners Manual: Headlamp High/Low-Beam Changer anf Flash-to-Pass

Headlamp High/Low-Beam Changer Push the turn signal lever away from you and release, to turn the high beams on. To return to low beams, push the lever again or pull it toward you and release. This indicator light turns on in the instrument cluster when the high-beam headlamps are on...

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: