Jeep 2014 Grand Cherokee SRT - Owner Manual - Manual (Page 206)

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).
Using this distance setting and the vehicle speed, ACC
calculates and sets the distance to the vehicle ahead. This
distance setting displays in the EVIC.
Distance Setting 4 Bars (Longest)
204 UNDERSTANDING THE FEATURES OF YOUR VEHICLE