Partial Off; When in “Partial Off” mode, the TCS functionality; of ESC, (except for the limited slip feature described- Page 215

2018 Jeep Wrangler JK Owner Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
SAFETY
OCCUPANT RESTRAINT SYSTEMS
STARTING AND OPERATING
SERVICING AND MAINTENANCE
MULTIMEDIA
UCONNECT PHONE — IF EQUIPPED
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WARNING!

When in “Partial Off” mode, the TCS functionality
of ESC, (except for the limited slip feature described
in the TCS section), has been disabled and the “ESC
Off Indicator Light” will be illuminated. When in
“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

Partial Off

mode.

ESC Activation/Malfunction Indicator Light And ESC
OFF Indicator Light

The “ESC Activation/Malfunction Indicator

Light” in the instrument cluster will come on

when the ignition is turned to the ON mode. It

should go out with the engine running. If the

“ESC Activation/Malfunction Indicator Light” comes on

continuously with the engine running, a malfunction has

been detected in the ESC system. If this light remains on

after several ignition cycles, and the vehicle has been

driven several miles (kilometers) at speeds greater than

30 mph (48 km/h), see an authorized dealer as soon as

possible to have the problem diagnosed and corrected.
The “ESC Activation/Malfunction Indicator Light” (lo-

cated in the instrument cluster) starts to flash as soon as the

tires lose traction and the ESC system becomes active. The

“ESC Activation/Malfunction Indicator Light” also flashes

when TCS is active. If the “ESC Activation/Malfunction

Indicator Light” begins to flash during acceleration, ease

up on the accelerator and apply as little throttle as possible.

Be sure to adapt your speed and driving to the prevailing

road conditions.

NOTE:

The “ESC Activation/Malfunction Indicator Light” and

the “ESC OFF Indicator Light” come on momentarily

each time the ignition is turned ON.

Each time the ignition is turned ON, the ESC system will

be on even if it was turned off previously.

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.

5

SAFETY

213

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 215

  • When in “Partial Off” mode, the TCS functionality of ESC, (except for the limited slip feature described in the TCS section), has been disabled and the “ESC Off Indicator Light” will be illuminated.
  • Trailer Sway Control (TSC) is disabled when the ESC system is in the ⴖ Partial Off ⴖ mode.
  • The “ESC Activation/Malfunction Indicator Light” and the “ESC OFF Indicator Light” come on momentarily each time the ignition is turned ON.
  • Each time the ignition is turned ON, the ESC system will be on even if it was turned off previously.
  • The ESC system will make buzzing or clicking sounds when it is active.

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