GMC Terrain: Setting Adaptive Cruise Control / Weather Conditions Affecting ACC

GMC Terrain 2018-2023 Owners Manual / Driving and Operating / Cruise Control / Setting Adaptive Cruise Control / Weather Conditions Affecting ACC

If the interior temperature is extremely high, the instrument cluster may indicate that ACC is temporarily unavailable. This can be caused by extreme hot weather conditions with direct sunlight on the front camera. ACC will return to normal operation once the cabin temperature is lower.

Conditions that are associated with low visibility, such as fog, rain, snow, or road spray, may limit ACC performance. Water droplets from rain or snow that remain on the windshield may also limit ACC’s ability to detect objects.

Erasing Speed Memory

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Lighting Conditions Affecting ACC

The ACC front camera can be affected by poor lighting conditions, and ACC may have limited performance when: There are changes in brightness, such as entering and exiting tunnels, bridges, and overpasses...

Other information:

GMC Terrain 2018-2023 Owners Manual: Curves in the Road

Warning On curves, ACC may not detect a vehicle ahead in your lane. You could be startled if the vehicle accelerates up to the set speed, especially when following a vehicle exiting or entering exit ramps. You could lose control of the vehicle or crash...

GMC Terrain 2018-2023 Owners Manual: Engine Overheating

The vehicle has an engine coolant temperature gauge on the instrument cluster and overheat messages in the Driver Information Center (DIC) to warn of engine overheating. See Engine Coolant Temperature Gauge. The decision may be made not to lift the hood when the engine coolant temperature gauge is in the overheat zone or an engine overheat DIC message displays, but instead to get servic..

Tire Pressure Light

GMC Terrain. 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.