ACC not available

Several conditions exist which can cause ACC to deactivate or prevent ACC from activating when requested. These conditions include:
• The sensor is blocked, refer to Blocked sensor in this section.
• Brake temperature is high, refer to Hilly condition usage in this
section.
• A failure has occurred in the ACC system or related system.
See also:
CTA and Reverse Sensing System (RSS) interaction
CTA works along with the Reverse Sensing System (RSS) (if equipped).
Become familiar with the warning tones of both systems. ...
All-wheel drive (AWD) system (if equipped)
Your vehicle may be equipped with a full-time all-wheel drive (AWD)
system. With the AWD option, power will be delivered to the front
wheels and distributed to the rear wheels as needed. This incr ...
Powertrain
The standard engine for 2013 is a more powerful and efficient 3.7-liter V6
that now includes twin independent variable camshaft timing (Ti-VCT). The
ability to vary camshaft timing to optimize the o ...
