four wheel drive JEEP WRANGLER 2011 JK / 3.G User Guide

WARNING! (Continued)
•HSA is not a parking brake. If you stop the vehicle
on a hill without putting the transmission in
PARK and using the parking brake, it will roll
down the hill and could cause a collision with
another vehicle or object. Always remember to use
the parking brake while parking on a hill, and that
the driver is responsible for braking the vehicle.
NOTE: The HSA system may also be turned on and off
if the vehicle is equipped with the Electronic Vehicle
Information Center (EVIC). Refer to Electronic Vehicle
Information Center (EVIC) in “Understanding Your In-
strument Panel” for further information.
HSA Off
If you wish to turn off the HSA system, follow this
procedure:
1. Start with the engine off and vehicle in PARK (auto-
matic transmission) or NEUTRAL with clutch out
(manual transmission) with wheels straight. Apply park-
ing brake on manual transmission vehicle.
2. Start the engine.
3. With the engine running, the brake applied, and the
clutch out, rotate the steering wheel 180° counterclock-
wise from center.
4. Press the ESC OFF switch four times within twenty
seconds.
5. Rotate the steering wheel 360° clockwise (180° clock-
wise from center).
6. Cycle ignition switch OFF then ON.
5
STARTING AND OPERATING 415

WARNING!
The Electronic Stability Control (ESC) cannot pre-
vent the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded by
prevailing road conditions. The ESC cannot prevent
collisions, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
hydroplaning. The capabilities 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.The ESC system has three available operating modes in
4H range. The system has one operating mode in 4L
range. Two-wheel drive vehicles and four-wheel drive
vehicles in 2H range have two operating modes.
4H Range (4WD Models) Or 2WD Models
On
This is the normal operating mode for ESC in 4H and
2WD vehicles.
Partial Off
This mode is entered by momentarily pressing the ESC
OFF switch.
418 STARTING AND OPERATING

GearApproximate HDC Set
Speed
1st 1 mph (1.5 km/h)
2nd 2.5 mph (4 km/h)
DRIVE 7.5 mph (12 km/h)
REVERSE 1 mph (1.5 km/h)
However, the driver can override HDC operation by
applying the brake to slow the vehicle down below the
HDC control speed. If more speed is desired during HDC
control, the accelerator pedal will increase vehicle speed
in the usual manner. When either the brake or the
accelerator is released, HDC will control the vehicle at the
original set speed.
Enabling HDC
1. Shift the transfer case into 4WD LOW range. Refer to
“Four-Wheel Drive Operation” in “Starting and Operat-
ing” for further information. 2. Press the “Hill Descent” button. The “Hill Descent
Control Indicator Light” in the instrument cluster will
turn on solid.
NOTE:
If the transfer case is not in 4WD LOW range,
the “Hill Descent Control Indicator Light” will flash for
five seconds and HDC will not be enabled.
Disabling HDC
1. Press the “Hill Descent” button or shift the transfer
case out of 4WD LOW range. The “Hill Descent Control
Indicator” light in the instrument cluster will turn off.
5
STARTING AND OPERATING 425

The Tire Pressure Monitor System (TPMS) consists of the
following components:
•Receiver Module
•Four Tire Pressure Monitoring Sensors
•Tire Pressure Monitoring Telltale Light
A tire pressure monitoring sensor is located in the spare
wheel if the vehicle is equipped with a matching full size
spare wheel and tire assembly. The matching full size
spare tire can be used in place of any of the four road
tires. A low spare tire will not cause the “Tire Pressure
Monitoring Telltale Light” to illuminate or the chime to
sound. The “Tire Pressure Monitoring Telltale Light” will
illuminate in the instrument cluster, and an au-
dible chime will be activated when one or more of
the four active road tire pressures are low. Should this
occur, you should stop as soon as possible, check the inflation pressure of each tire on your vehicle, and inflate
each tire to the vehicle’s recommended cold placard
pressure value. The system will automatically update
and the “Tire Pressure Monitoring Telltale Light” will
extinguish once the updated tire pressures have been
received. The vehicle may need to be driven for up to
20 minutes above 15 mph (24 km/h) to receive this
information.
The “Tire Pressure Monitoring Telltale Light” will flash
on and off for 75 seconds, and will remain on solid when
a system fault is detected. The system fault will also
sound a chime. If the ignition key is cycled, this sequence
will repeat, providing the system fault still exists. A
system fault can occur by any of the following scenarios:
1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the TPM
sensors.
450 STARTING AND OPERATING

WARNING! (Continued)
•Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have a collision.
•When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading can
cause a loss of control, poor performance or dam-
age to the brakes, axle, engine, transmission, steer-
ing, suspension, chassis structure or tires.
•Safety chains must always be used between your
vehicle and trailer. Always connect the chains to
the frame or hook retainers of the vehicle hitch.
Cross the chains under the trailer tongue and
allow enough slack for turning corners.(Continued)
WARNING! (Continued)
•Vehicles with trailers should not be parked on a
grade. When parking, apply the parking brake on
the tow vehicle. Put the tow vehicle automatic
transmission in PARK. With a manual transmis-
sion, shift the transmission into first gear. And
with four-wheel-drive vehicles, make sure the
transfer case is not in N (Neutral). Always, block
orchock the trailer wheels.
•GCWR must not be exceeded.
•Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR
(Continued)
472 STARTING AND OPERATING

RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing ConditionWheels OFF the
Ground Four-Wheel Drive Models
Flat Tow NONESee Instructions
•Automatic transmission in PARK
•Manual transmission in gear
(NOT in NEUTRAL (N)
•Transfer case in NEUTRAL (N)
•Tow in forward direction
Dolly Tow Front
NOT ALLOWED
Rear NOT ALLOWED
On Trailer ALL OK
478 STARTING AND OPERATING

Recreational Towing – Four-Wheel Drive Models
NOTE:The transfer case must be shifted into N (Neu-
tral), automatic transmission must be shifted into PARK,
and manual transmission must be placed in gear (NOT in
NEUTRAL) for recreational towing.
CAUTION!
•Front or rear wheel lifts should not be used.
Internal damage to the transmission or transfer
case will occur if a front or rear wheel lift is used
when recreational towing.
•Tow only in the forward direction. Towing this
vehicle backwards can cause severe damage to the
transfer case.
•Automatic transmissions must be placed in the
PARK position for recreational towing.
(Continued)
CAUTION! (Continued)
•Manual transmissions must be placed in gear (not
in Neutral) for recreational towing.
•Before recreational towing, perform the procedure
outlined under “Shifting Into NEUTRAL” to be
certain that the transfer case is fully in NEUTRAL.
Otherwise, internal damage will result.
•Towing this vehicle in violation of the above
requirements can cause severe transmission and/or
transfer case damage. Damage from improper tow-
ing is not covered under the New Vehicle Limited
Warranty.
•Do not use a bumper-mounted clamp-on tow bar
on your vehicle. The bumper face bar will be
damaged.
5
STARTING AND OPERATING 479

WHAT TO DO IN EMERGENCIES
CONTENTS
Hazard Warning Flashers ................ 484
 If Your Engine Overheats ................ 484
 Jacking And Tire Changing ............... 485
▫ Jack Location ....................... 486
▫ Spare Tire Stowage ................... 486
▫ Preparations For Jacking ............... 487
▫ Jacking Instructions ................... 488
 Jump-Starting Procedures ................ 491
▫ Preparations For Jump-Start ............. 492▫
Jump-Starting Procedure ............... 493
 Freeing A Stuck Vehicle ................. 495
 Emergency Tow Hooks — If Equipped ...... 496
 Shift Lever Override ................... 497
 Towing A Disabled Vehicle ............... 498
▫ Towing Without The Ignition Key FOB ..... 500
▫ Four–Wheel Drive Models .............. 500
6

CAUTION!
•Do not attempt to use sling type equipment when
towing. When securing the vehicle to a flatbed
truck, do not attach to front or rear suspension
components. Damage to your vehicle may result
from improper towing.
•If the vehicle being towed requires steering. the
ignition switch must be in the ON/RUN or ACC
position, not the LOCK/OFF position.
Towing Without The Ignition Key Fob
Special care must be taken when the vehicle is towed
with the ignition in the LOCK/OFF position. The only
approved method of towing without the ignition key is
with a flatbed truck. Proper towing equipment is neces-
sary to prevent damage to the vehicle.
Four–Wheel Drive Models
The manufacturer recommends towing with all wheels
OFFthe ground. Acceptable methods are to tow the
vehicle on a flatbed or with one end of the vehicle raised
and the opposite end on a towing dolly.
500 WHAT TO DO IN EMERGENCIES

Fabric Care......................... 535,536
Fabric Top ............................. 536
Filters Air Cleaner ......................... 512
Air Conditioning ..................... 362
Engine Oil ......................... 512
Finish Care ............................ 533
Flashers Hazard Warning ..................... 484
Turn Signal ................. 89,267,547,548
Flooded Engine Starting ................... 371
Fluid Capacities ......................... 549
Fluid Leaks ............................. 89
Fluid Level Checks ...................... 532
Automatic Transmission ................ 527
Engine Oil ......................... 510
Manual Transmission .................. 530
Power Steering ...................... 406
Fluids, Lubricants and Genuine Parts .......... 550Fog Light Service
........................ 547
Fog Lights .......................... 152,547
Fold and Tumble Rear Seat ................. 144
Folding Rear Seat ........................ 146
Folding Windshield ...................... 253
Four Wheel Drive ....................... 383
Shifting ........................... 385
Four Wheel Drive Operation ................ 383
Four-Way Hazard Flasher .................. 484
Freeing A Stuck Vehicle ................... 495
Front Axle (Differential) ................... 531
Fuel ................................. 452
Ethanol ........................... 453
Filler Cap (Gas Cap) .................. 457
Gasoline ........................... 452
Gauge ............................ 266
Materials Added ..................... 455
Methanol .......................... 453
Octane Rating ....................... 452
10
INDEX 587