How Do I Fix Adaptive Cruise Temporarily Unavailable?

If you encounter a “Temporarily Unavailable” message related to the Adaptive Cruise Control (ACC) in your GMC vehicle, you can take a few steps towards a resolution. Check for an issue with the object-detecting sensor. Vehicle manufacturers use varying types of ACC, and if your vehicle is equipped with this feature, you can switch between Adaptive Cruise Control — Advanced and regular Cruise Control.

To temporarily resolve the problem, put your foot under the brake pedal and pull it towards you before engaging the cruise control. If the front sensor is not aligned, contact an authorized dealer to have the issue resolved. You cannot disable ACC to regular cruise, only modify the distance.

If you’ve bought ACC, you’re stuck with it. There is no normal cruise function. You will get a message in the cluster display or the green Adaptive Cruise Control icon will turn blue, indicating that Adaptive Cruise Control automatic braking is temporarily unavailable. To fix the issue, press and hold the ACC reset button for the specified duration, usually a few seconds.

Some suggestions include checking for any software updates available for the vehicles modules, especially the Adaptive Cruise Control (ACC) module. If the issue persists, check for bad weather that affects road visibility, moisture on the inside or outside of the windshield, blocked or dirty radar sensors or cameras, poor lighting, or other factors.