See also:

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. ...

Control Setting Suggestions For Various Weather Conditions
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Operating Instructions - Uconnect™ Phone (If Equipped)
Refer to “Uconnect™ Phone” in “Understanding The Features Of Your Vehicle”. ...