Jeep Grand Cherokee 2015, Operating Information Manual

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Each time the ignition is turned ON, the
ESC system will be ON even if it was
turned off previously.
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The ESC system will make buzzing or
clicking sounds when it is active. This is
normal; the sounds will stop when ESC
becomes inactive following the maneuver
that caused the ESC activation.
The " ESC OFF Indicator Light " in-
dicates the Electronic Stability
Control (ESC) is partially off or full
off.
Trailer Sway Control (TSC)
The TSC system uses sensors in the vehicle to
recognize an excessively swaying trailer and
will take the appropriate actions to attempt to
stop the sway. The system may reduce engine
power and apply the brake of the appropriate
wheel(s) to counteract the sway of the trailer.
TSC will become active automatically once an
excessively swaying trailer is recognized.
Always use caution when towing a trailer and
follow the trailer tongue weight recommenda-
tions. When TSC is functioning, the “ESC
Activation/Malfunction Indicator Light” will flash,
the engine power may be reduced and you may
feel the brakes being applied to individual
wheels to attempt to stop the trailer from sway-
ing. TSC is only active in the default “ESC On”
mode. TSC can be disabled by pressing the
“ESC Off” switch and entering “ESC Partial Off”
mode. It is not active in the “ESC Partial Off” or
“ESC Full Off” modes. Refer to the ESC portion
of this section for an explanation of the different
ESC operating modes.
NOTE:
TSC cannot stop all trailers from swaying.
WARNING!
If the TSC activates while driving, slow the
vehicle down, stop at the nearest safe loca-
tion, and adjust the trailer load to eliminate
trailer sway.
Ready Alert Braking (RAB)
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 (RBS)
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 is triggered by the windshield wiper
setting and only functions when they are in use.
When Rainy Brake Support is active, there is no
notification to the driver and no driver interac-
tion is required.
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