2015 Jeep Grand Cherokee Owner Manual SRT - Page 200

198 UNDERSTANDING THE FEATURES OF YOUR VEHICLE • When you use the SET - button to decelerate, if the engine's braking power does not slow the vehicle sufficiently to reach the set speed, the brake system will automatically slow the vehicle. Setting The Following Distance In ACC The specified following distance for ACC can be set by varying the distance setting between four bars (longest), three bars (long), two bars (medium) and one bar (short). • The ACC system applies the brake down to a full stop Using this distance setting and the vehicle speed, ACC when following a target vehicle. If an ACC host vehicle calculates and sets the distance to the vehicle ahead. This follows a target vehicle to a standstill, the host vehicle distance setting displays in the DID. will release the vehicle brakes two seconds after coming to a full stop. • The ACC system maintains set speed when driving up hill and down hill. However, a slight speed change on moderate hills is normal. In addition, downshifting may occur while climbing uphill or descending downhill. This is normal operation and necessary to maintain set speed. When driving up hill and down hill, the ACC system will cancel if the braking temperature exceeds normal range (overheated).