light JEEP WRANGLER UNLIMITED 2015 Owner's Manual

WARNING!
•When in ESC Partial Off mode, the TCS function-
ality of ESC, (except for the limited slip feature
described in the TCS section), has been disabled
and the “ESC Off Indicator Light” will be illumi-
nated. When in ESC Partial Off mode, the engine
power reduction feature of TCS is disabled, and
the enhanced vehicle stability offered by the ESC
system is reduced.
• Trailer Sway control (TSC) is disabled when the
ESC system is in the ESC Partial Offmode.
ESC Full Off
This mode is entered by pressing and holding momen-
tarily pressing the ESC OFF switch for five seconds. In the
ESC Full Off mode, the engine torque reduction
and stability features are disabled. Therefore, the en-
hanced vehicle stability offered by ESC is unavailable. In
an emergency evasive maneuver, the ESC system will not
engage to assist in maintaining stability. “ESC Full Off”
mode is intended for off-highway or off-road use only.

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.

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.
5
STARTING AND OPERATING 483

CAUTION!
•Damage to the fuel system or emission control
system could result from using an improper fuel
filler cap. A poorly fitting cap could let impurities
into the fuel system. Also, a poorly fitting aftermar-
ket cap can cause the “Malfunction Indicator Light
(MIL)” to illuminate, due to fuel vapors escaping
from the system.
• To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.

The manufacturer will not stand behind any service
contract that is not the manufacturer’s service contract. It
is not responsible for any service contract other than the
manufacturer’s service contract. If you purchased a ser-
vice contract that is not a manufacturer’s service contract,
and you require service after the manufacturer’s New
Vehicle Limited Warranty expires, please refer to the
contract documents, and contact the person listed in
those documents.
We appreciate that you have made a major investment
when you purchased the vehicle. An authorized dealer
has also made a major investment in facilities, tools, and
training to assure that you are absolutely delighted with
the ownership experience. You will be pleased with their
sincere efforts to resolve any warranty issues or related
concerns.