2011 Chrysler 300 Owner Manual - Page 195

UNDERSTANDING THE FEATURES OF YOUR VEHICLE 193 ACC may occasionally provide braking and/or a driver alert that you consider unnecessary. This may be the system's response to signs, guardrails, and other stationary objects in a curve. This may also occur at the base of steep hills. This is normal operation and your vehicle does not require service. Using ACC On Hills When driving on hills, ACC may not detect a vehicle in your lane. Depending on the speed, vehicle load, traffic conditions, and the steepness of the hills, ACC performance may be limited. Lane Changing ACC will not detect a vehicle until it is completely in the lane in which you are traveling. In the illustration shown, ACC has not yet detected the vehicle changing lanes and it may not detect the vehicle until it's too late for the ACC 3