JEEP WRANGLER UNLIMITED 2015 Owners Manual

When inESC Full Off mode, ESC and TCS, except for
the Brake Limited Differential (BLD) feature described in
the TCS section, are turned off until the vehicle reaches
an approximate speed of 40 mph (64 km/h). For speeds
at or exceeding approximately 40 mph (64 km/h) the ESC
goes into ESC Partial Off. When the vehicle speed drops
below 35 mph (56 km/h), the ESC system goes back to
ESC Full Off. To turn ESC on again, momentarily press
the ESC OFF switch. This will restore normal “ESC On”
mode of operation. The ESC Off Indicator Light” will
always be illuminated when ESC is in ESC Partial Off
and ESC full Off.

ESC Full Off. The ESC is inESC Full Offat low vehicle
speeds in 4L range so that it will not interfere with
off-road driving, but the ESC function returns to provide
the stability feature at speeds above 40 mph (64 km/h).
The “ESC OFF Indicator Light” will always be illumi-
nated in 4L range when ESC is in ESC Full OfforESC
Partial Off.
NOTE: The “ESC OFF” message will display and an
audible chime will sound when the shift lever is placed in
the PARK position from any position other than PARK,
and then moved out of the PARK position. This will
occur even if the message was previously cleared.

This mode is intended to be used if the vehicle is in deep
snow, sand, or gravel conditions and more wheel spin
than ESC would normally allow is required to gain
traction. To turn ESC on again, momentarily press the
ESC OFF switch. This will restore the normalESC On
mode of operation.
NOTE: To improve the vehicle’s traction when driving
with snow chains, or starting off in deep snow, sand, or
gravel, it may be desirable to switch to the ESC Partial
Off mode by pressing the ESC Full Offswitch. Once the
situation requiring ESC to be switched to the ESC Partial
Off mode is overcome, turn ESC back on by momen-
tarily pressing the ESC Full Offswitch. This may be
done while the vehicle is in motion.
The ESC will restore to normal ESC On mode after each
key on.
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Trailer Sway Control (TSC)
TSC uses sensors in the vehicle to recognize an exces-
sively 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 appro-
priate wheel(s) to counteract the sway of the trailer. TSC
will become active automatically once an excessively
swaying trailer is recognized. TSC cannot stop all trailers
from swaying. Always use caution when towing a trailer
and follow the tongue weight recommendations. Refer to
“Trailer Towing” in “Starting and Operating” for further
information. 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 swaying. TSC is disabled when the
ESC system is in theESC Partial OfforESC Full Off
modes.
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