To Activate:
WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Push the speed control lever inward (toward the steering column) and release ("ON/OFF"). The ACC menu in the EVIC displays "ACC READY."
To turn the system OFF, push the lever inward (toward the steering column) again and release. At this time, the system will turn off and the EVIC will display "ACC OFF."
Leaving the Adaptive Cruise Control (ACC) system on when not in use is dangerous. You could accidentally set the system or cause it to go faster than you want. You could lose control and have an accident. Always leave the system OFF when you aren't using it.