GMC Terrain Quiz
Driving and Operation

ACC Automatically Turns Off

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

ACC may turn off automatically and the driver will need to manually apply the brakes to slow the vehicle if:

  • The front camera is blocked or visibility is reduced.
  • The Traction Control System (TCS) or StabiliTrak/ESC system has been activated or turned off.
  • There is a system malfunction.
  • A DIC message is displayed to indicate that ACC is temporarily unavailable.

The ACC indicator will turn white when ACC is no longer active.

In some cases, when ACC is temporarily unavailable, conventional cruise control may be used. Refer to "Switching Between ACC and Conventional Cruise Control" in this section. Always consider driving conditions before using any cruise control system.

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