GMC Terrain Quiz
Driving and Operation

Cleaning the Sensor System

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

The camera sensor on the windshield behind the rearview mirror may become blocked by snow, ice, dirt, mud, or debris. This area must be cleaned for ACC to operate properly.

The vehicle's headlamps may need to be cleaned of dirt, snow, or ice. Objects that are not illuminated properly may be difficult to detect.

If ACC does not operate, cruise control may be available. See "Switching Between ACC and Regular Cruise Control" in this section. Always consider driving conditions before using any cruise control system.

For cleaning instructions, see "Vehicle Washing" in the Exterior Care section.

Test yourself

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