GMC Terrain Quiz
Driving and Operation

Weather Conditions Affecting ACC

In this manual: Driving and Operation
Introduction — 1In Brief — 46Keys, Doors and Windows — 37Seats and Restraints — 60Storage — 6Instruments and Controls — 58Lighting — 16Infotainment System — 1Climate Control — 8Driving and Operation — 128Vehicle Care — 75Service and Maintenance — 8Technical Data — 5Customer Information — 18OnStar — 6Connected Services — 4
~1min read

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

Conditions associated with poor 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.

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A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.