Dodge 2016 Durango Owner's Manual page 219

UNDERSTANDING THE FEATURES OF YOUR VEHICLE 217
Turns And Bends
When driving on a curve with ACC engaged, the system
may decrease the vehicle speed and acceleration for
stability reasons, with no target vehicle detected. Once
3
the vehicle is out of the curve the system will resume
your original Set Speed. This is a part of normal ACC
system functionality.
NOTE: On tight turns ACC performance may be limited.
Turn Or Bend Example