Jeep Grand Cherokee 2013 Operating Information Manual page 261

WARNING! (Continued)
• HSA is not a parking brake. If you stop the
vehicle on a hill without putting the trans-
mission in PARK and using the parking
brake, it will roll down the hill and could
cause a collision with another vehicle or
object. Always remember to use the park-
ing brake while parking on a hill, and that
the driver is responsible for braking the
vehicle.
HSA Off
If you wish to turn off the HSA system, it can be
done using the Customer Programmable Fea-
tures in the Electronic Vehicle Information Cen-
ter (EVIC). Refer to "Electronic Vehicle Informa-
tion Center (EVIC)" in "Understanding Your
Instrument Panel" for further information.
Ready Alert Braking
Ready Alert Braking may reduce the time re-
quired to reach full braking during emergency
braking situations. It anticipates when an emer-
gency braking situation may occur by monitor-
ing how fast the throttle is released by the driver.
When the throttle is released very quickly,
Ready Alert Braking applies a small amount of
brake pressure. This brake pressure will not be
noticed by the driver. The brake system uses
this brake pressure to allow a fast brake re-
sponse if the driver applies the brakes.
Rain Brake Support
Rain Brake Support may improve braking per-
formance in wet conditions. It will periodically
apply a small amount of brake pressure to
remove any water buildup on the front brake
rotors. It only functions when the windshield
wipers are in the LO or HI mode, it does not
function in the intermittent mode. When Rain
Brake Support is active, there is no notification
to the driver and no driver interaction is re-
quired.
Hill Descent Control (HDC) —
Four-Wheel Drive Models With MP3023
Two-Speed Transfer Case Only
HDC maintains vehicle speed while descending
hills during off-road driving situations and is
available in 4WD LOW range only. To enable
HDC, press the HDC switch or put the Selec-
Terrain™ system in "ROCK" mode ("ROCK"
mode is only available in 4WD LOW range).
Hill Descent Switch
257