Jeep 2013 Wrangler Owner's Manual page 237

NOTE:
• In partial ESC mode, the engine power
reduction feature of ESC is disabled.
Therefore, enhanced vehicle stability of-
fered by the ESC system is reduced.
• 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 "Partial Off"
mode by pressing the ESC OFF switch.
Once the situation requiring ESC to be
switched to the "Partial Off" mode is over-
come, turn ESC back on by momentarily
pressing the ESC OFF switch. This may
be done while the vehicle is in motion.
WARNING!
With the ESC switched off, the enhanced
vehicle stability offered by ESC and ERM are
unavailable. In an emergency evasive ma-
neuver, the ESC and ERM systems will not
engage to assist in maintaining stability. The
"Full Off" ESC mode is intended for off-road
use only.
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4L Range (4WD Models)
ESC Off
This is the normal operating mode for ESC in 4L
range. Whenever the vehicle is started in 4L
range, or the transfer case (if equipped) is
shifted from 4H range or NEUTRAL to 4L range,
the ESC system will be in this mode. In 4L
range, ESC and TCS, except for the "limited
slip" feature described in the TCS section, are
turned off until the vehicle reaches a speed of
40 mph (64 km/h). At 40 mph (64 km/h), the
normal ESC stability function returns but TCS
remains off. When the vehicle speed drops
below 35 mph (56 km/h), the ESC system shuts
off. The ESC is off at 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 Activation/Malfunction In-
dicator Light" will always be illuminated in 4L
range when ESC is off.
NOTE:
The "ESC OFF" message will display and
the 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.
WARNING!
With the ESC switched off, the enhanced
vehicle stability offered by ESC and ERM are
unavailable. In an emergency evasive ma-
neuver, the ESC and ERM systems will not
engage to assist in maintaining stability. The
"Full Off" mode is intended for off-road use
only.
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