2013 JEEP WRANGLER traction control

Trailer Sway Control (TSC), and Hill Descent Control
(HDC). All of these systems work together to enhance
vehicle stability and control in various driving condi-
tions, and are commonly referred to as ESC.
WARNING!
The Anti-Lock Brake System (ABS) cannot prevent
the natural laws of physics from acting on the ve-
hicle, nor can they increase the traction afforded by
prevailing road conditions. The ABS cannot prevent
collisions, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
hydroplaning. The capabilities of an ABS-equipped
vehicle must never be exploited in a reckless or
dangerous manner which could jeopardize the user’s
safety or the safety of others.
Traction Control System (TCS)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) to provide
enhanced acceleration and stability. A feature of the TCS
system functions similar to a limited slip differential and
controls the wheel spin across a driven axle. If one wheel
on a driven axle is spinning faster than the other, the
system will apply the brake of the spinning wheel. This
will allow more engine torque to be applied to the wheel
that is not spinning. This feature remains active even if
TCS and ESC are in either the “Partial Off” or “Full Off”
modes. Refer to “Electronic Stability Control (ESC)” in
this section for further information.
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STARTING AND OPERATING 461

ESC uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESC applies the brake of the appro-
priate wheel to assist in counteracting the oversteer or
understeer condition.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
• Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
The “ESC Activation/Malfunction Indicator Light” (located
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 condi-
tions.
WARNING!
Electronic Stability Control (ESC) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ESC cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. ESC also cannot prevent accidents resulting
from loss of vehicle control due to inappropriate
driver input for the conditions. Only a safe, attentive,
and skillful driver can prevent accidents. The capa-
bilities of an ESC equipped vehicle must never be
exploited in a reckless or dangerous manner which
could jeopardize the user ’s safety or the safety of
others.
468 STARTING AND OPERATING

TIRE CHAINS (TRACTION DEVICES)
Use of traction devices require sufficient tire-to-body
clearance. Follow these recommendations to guard
against damage.
•Traction device must be of proper size for the tire, as
recommended by the traction device manufacturer.
• Install on Rear Tires Only.
• P225/75R16 or a P235/65R17 tire with the use of a
traction device that meets the SAE type “Class S”
specification is recommended.
WARNING!
Using tires of different size and type (M+S, Snow)
between front and rear axles can cause unpredictable
handling. You could lose control and have a collision.
CAUTION!
To avoid damage to your vehicle or tires, observe the
following precautions:
• Because of restricted traction device clearance be-
tween tires and other suspension components, it is
important that only traction devices in good condi-
tion are used. Broken devices can cause serious
damage. Stop the vehicle immediately if noise
occurs that could indicate device breakage. Remove
the damaged parts of the device before further use.
• Install device as tightly as possible and then re-
tighten after driving about ½ mile (0.8 km).
• Do not exceed 30 mph (48 km/h).
• Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.
• Do not drive for prolonged period on dry pave-
ment.
(Continued)
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Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-half
times as well on the government course as a tire graded
100. The relative performance of tires depends upon the
actual conditions of their use, however, and may depart
significantly from the norm due to variations in driving
habits, service practices, and differences in road charac-
teristics and climate.
Traction Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These grades represent the tire’s ability to stop on
wet pavement, as measured under controlled conditions
on specified government test surfaces of asphalt and
concrete. A tire marked C may have poor traction perfor-
mance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
640 IF YOU NEED CONSUMER ASSISTANCE

Pressure Cap......................... .589
Radiator Cap ......................... .589
Selection of Coolant (Antifreeze) .............588
Corrosion Protection ...................... .600
Cruise Light ............................ .310
Cupholders ............................ .190
Customer Assistance ...................... .633
Data Recorder, Event .......................74
Daytime Running Lights ....................173
Dealer Service ........................... .573
Defroster, Rear Window .....................298
Defroster, Windshield ..................... .102
Delay (Intermittent) Wipers ..................177
Diagnostic System, Onboard .................570
Dimmer Switch, Headlight ...................172
Dipsticks Oil (Engine) .......................... .574
Power Steering ........................ .456Disabled Vehicle Towing
....................563
Disarming, Theft System .....................22
Disposal Antifreeze (Engine Coolant) ................590
Door Locks ..............................38
Door Locks, Automatic ......................41
Doors ..................................32
Driver’s Seat Back Tilt ..................... .156
Driving ............................... .441
Dual Top .............................. .193
Electrical Outlet, Auxiliary (Power Outlet) ........184
Electrical Power Outlets .....................184
Electric Remote Mirrors .....................114
Electronic Brake Control System ...............460
Brake Assist System .....................462
Electronic Roll Mitigation .................466
Traction Control System ...................461
Electronic Roll Mitigation (ERM) ..............466
10
INDEX 647

Hazard Warning Flasher..................546
Headlights ........................... .169
Headlight Switch ...................... .169
High Beam ........................... .305
High Beam Indicator .....................305
Hill Descent Control Indicator ..............474
Illuminated Entry ........................23
Instrument Cluster ..................... .169
Interior ............................. .173
Lights On Reminder .....................171
Low Fuel ............................ .304
Oil Pressure .......................... .305
Passing ............................. .172
Rear Servicing ........................ .617
Rear Tail ............................ .617
Seat Belt Reminder ..................... .305
Security Alarm (Theft Alarm) ...............309
Service .............................. .615
Side Marker .......................... .617Theft Alarm (Security Alarm)
...............309
Tire Pressure Monitoring (TPMS) ............310
Traction Control ....................... .472
Turn Signal .......................... .103
Voltage ............................. .304
Warning (Instrument Cluster Description) ......304
Loading Vehicle ......................... .519
Tires ............................... .482
Locking Axle ........................... .438
Locks ..................................38
Automatic Door .........................41
Child Protection .........................42
Door .................................38
Power Door ............................40
Steering Wheel ..........................17
Lubrication, Body ........................ .582
Maintenance Free Battery ....................577
Maintenance Procedures ....................573
10
INDEX 653

Safety.............................. .476
Sizes ............................... .477
Snow Tires ........................... .492
Spare Tire ............................ .549
Spinning ............................ .495
Tread Wear Indicators ....................496
Tire Safety Information .....................476
Tongue Weight/Trailer Weight ................532
To Open Hood .......................... .167
Tow Hooks, Emergency .....................561
Towing ............................... .522
24-Hour Towing Assistance ................130
Disabled Vehicle ....................... .563
Guide .............................. .526
Recreational .......................... .540
Weight .............................. .526
Towing Assistance ........................ .130
Trac-Lok Rear Axle ....................... .437
Traction Control ......................... .461Trailer Sway Control (TSC)
..................473
Trailer Towing .......................... .522
Cooling System Tips .....................539
Hitches ............................. .525
Minimum Requirements ..................533
Trailer and Tongue Weight .................532
Wiring .............................. .537
Trailer Towing Guide ...................... .526
Trailer Weight ........................... .526
Transfer Case ........................... .598
Four-Wheel-Drive Operation ...............433
Maintenance .......................... .598
Transmission ........................... .594
Automatic ........................... .424
Manual ............................. .418
Range

Indicator ....................... .310
Shifting ............................. .422
Transmitter Battery Service (Remote Keyless Entry) . .28
Tread Wear Indicators ..................... .496
660 INDEX