2013 JEEP WRANGLER stability

WARNING!(Continued)
•Unequal tire pressures from one side of the vehicle
to the other can cause the vehicle to drift to the
right or left.
• Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear pat-
terns to develop across the tire tread. These abnormal wear
patterns will reduce tread life resulting in a need for earlier
tire replacement. Under-inflation also increases tire rolling
resistance resulting in higher fuel consumption.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride. Both under-inflation and over-inflation affect the
stability of the vehicle and can produce a feeling of
sluggish response or over responsiveness in the steering.
Unequal tire pressures from side to side may cause erratic
and unpredictable steering response.
Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
488 STARTING AND OPERATING

Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires
on your vehicle will cause your vehicle to handle
poorly. The instability could cause a collision. Al-
ways use radial ply tires in sets of four. Never
combine them with other types of tires.
Tire Repair
If your tire becomes damaged, it may be repaired if it
meets the following criteria:
• The tire has not been driven on when flat,
• The damage is only on the tread section of your tire
(sidewall damage is not repairable) and
• The puncture is no greater than ¼ (6 mm)Consult an authorized tire dealer for tire repairs and
additional information.
Damaged Run Flat tires, or Run Flat tires that have
experienced a loss of pressure should be replaced imme-
diately with another Run Flat tire of identical size and
service description (Load Index and Speed Code).
All Season Tires – If Equipped
All Season tires provide traction for all seasons (spring,
summer, fall and winter). Traction levels may vary be-
tween different all season tires. All season tires can be
identified by the M+S, M&S, M/S or MS designation on
the tire sidewall. Use all season tires only in sets of four;
failure to do so may adversely affect the safety and
handling of your vehicle.5
STARTING AND OPERATING 491

Trailer Sway Control – If Equipped
The trailer sway control is a telescoping link that can be
installed between the hitch receiver and the trailer
tongue. It typically provides adjustable friction associ-
ated with the telescoping motion to dampen any un-
wanted trailer swaying motions while traveling.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer tongue
weight, just as if it were luggage located at a hitch ball or
some other connecting point of the vehicle. These kinds
of hitches are the most popular on the market today and
they are commonly used to tow small and medium sized
trailers.
Weight-Distributing Hitch
A weight-distributing system works by applying lever-
age through spring (load) bars. They are typically used
for heavier loads to distribute trailer tongue weight to the
tow vehicle’s front axle and the trailer axle(s). When used
in accordance with the manufacturer’s directions, it pro-
vides for a more level ride, offering more consistent
steering and brake control thereby enhancing towing
safety. The addition of a friction / hydraulic sway control
also dampens sway caused by traffic and crosswinds and
contributes positively to tow vehicle and trailer stability.
Trailer sway control and a weight distributing (load
equalizing) hitch are recommended for heavier Tongue
Weights (TW) and may be required depending on vehicle
and trailer configuration / loading to comply with Gross
Axle Weight Rating (GAWR) requirements.
524 STARTING AND OPERATING

WARNING!
•An improperly adjusted Weight Distributing Hitch
system may reduce handling, stability, braking
performance, and could result in a collision.
•
Weight Distributing Systems may not be compatible
with Surge Brake Couplers. Consult with your hitch
and trailer manufacturer or a reputable Recreational
Vehicle dealer for additional information.
Trailer Hitch Classification
The following chart provides the industry standard for
the maximum trailer weight a given trailer hitch class can
tow and should be used to assist you in selecting the
correct trailer hitch for your intended towing condition.
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch
Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1 587 kg)
Class III - Heavy Duty 5,000 lbs (2 268 kg)
Class IV - Extra Heavy
Duty 10,000 lbs (4 540 kg)
Refer to the “Trailer Towing Weights (Maximum
Trailer Weight Ratings)” chart for the Maximum
Gross Trailer Weight (GTW) towable for your given
drivetrain.
All trailer hitches should be professionally installed
on your vehicle.
5
STARTING AND OPERATING 525

3. Assemble the jack and jacking tools. Connect the jackhandle driver to the extension, then to the lug wrench.
4. Operate the jack from the front or the rear of the vehicle. Place the jack under the axle tube, as shown.
Do not raise the vehicle until you are sure the jack is
fully engaged.
5. Raise the vehicle by turning the jack screw to the right.Raise the vehicle till the tire is raised from the surface
of the road. Minimum tire lift provides maximum
stability.
Rear Jacking Location
Front Jacking Location
552 WHAT TO DO IN EMERGENCIES

CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.
NOTE: Press the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode,
before rocking the vehicle. Refer to “Electronic Brake
Control” in “Starting And Operating” for further infor-
mation. Once the vehicle has been freed, press the ESC
Off switch again to restore ESC Onmode.
CAUTION!
•When “rocking” a stuck vehicle by shifting be-
tween DRIVE/2nd gear and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drive-
train damage may result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no trans-
mission shifting occurring).
560 WHAT TO DO IN EMERGENCIES

Cavity Cartridge Fuse Mini FuseDescription
J1 — —
J2 30 Amp Pink Transfer Case Module
J3 — —
J4 25 Amp Natural Driver Door Node
J5 25 Amp Natural Passenger Door Node
J6 40 Amp Green Anti-Lock Brake System (ABS) Pump/Stability
Control System
J7 30 Amp Pink Anti-Lock Brake System (ABS) Valve/Stability
Control System
J8 — —
J9 40 Amp Green PZEV Sec Motor/Flex Fuel
J10 30 Amp Pink Headlamp Wash Relay/Manifold Tuning Valve
J11 30 Amp Pink Sway Bar
J12 30 Amp Pink Rear Blower Motor/Radiator Fan
J13 60 Amp Yellow Ignition Off Draw (IOD) – Main
608 MAINTAINING YOUR VEHICLE

Cavity Cartridge Fuse Mini FuseDescription
M26 10 Amp Red Power Window Switch, Driver Window Switch
M27 10 Amp RedIgnition Switch Feed, Wireless Module
M28 10 Amp RedPowertrain Control Module
M29 10 Amp Red Powertrain
M30 15 Amp BlueWiper Motor Frt, J1962 Diagnostic Feed
M31 20 Amp Yellow Backup Lamps
M32 10 Amp RedAirbag Controller, TT EUROPE
M33 10 Amp RedPowertrain Controller
M34 10 Amp Red Park Assist, Climate Control System, Headlamp
Wash, Compass
M35 10 Amp RedHeated Mirrors
M36 20 Amp Yellow Power Outlet
M37 10 Amp Red Anti-Lock Brake System, Electronic Stability
Control, Stop Lamp Switch, Fuel Pump Relay
M38 25 Amp Natural Lock/Unlock Motors
612 MAINTAINING YOUR VEHICLE