wheel JEEP WRANGLER 2008 JK / 3.G User Guide

Passing Light
You can signal another vehicle with your headlights by
lightly pulling the multifunction control lever toward the
steering wheel. This will cause the headlights to turn on
at high beam and remain on until the lever is released.
Front Fog Lights — If Equipped
The front fog light switch is located on the multi-
function control lever. To activate the front fog
lights, turn on the parking or low beam headlights
and pull out the end of the lever.
NOTE: The fog lights will only operate with the parking
lights or the headlights on low beam. Selecting high
beam headlights will turn off the fog lights.
Turn Signals
Move the multifunction control lever up or down, and
the arrows on each side of the instrument cluster flash, to
show proper operation of the front and rear turn signal
lights. You can signal a lane change by moving the lever
partially up or down without moving beyond the detent.
If either light has a very fast flash rate, check for a
defective outside light bulb. If an indicator fails to light
when the lever is moved, it would suggest that the fuse
or indicator is defective or there may be a circuit failure.
NOTE: A tone will chime if the turn signals are left on
for more than 1 mi (2 km).
Daytime Running Lights — If Equipped
The headlights come on at a low intensity level after the
vehicle has been driven approximately 3 ft (1 m). They
will turn off when the vehicle is turned off or when the
headlights are switched on.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 99
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Windshield Washers
To use the washer, pull the lever toward you and hold
while spray is desired. If the lever is pulled while in the
delay range, the wiper will operate for two wipe cycles
after the lever is released, and then resume the intermit-
tent interval previously selected.
If the lever is pulled while in the OFF position, the wipers
will operate for as long as the lever is held plus two wipe
cycles, then turn OFF.
Mist Feature
Push down on the wiper lever to activate a single wipe to
clear off road mist or spray from a passing vehicle. As
long as the lever is held down, the wipers will continue
to operate.
TILT STEERING COLUMN
To tilt the column, push down on the lever under the
multifunction control lever and move the wheel up or
down, as desired. Pull the lever back upwards to lock the
column firmly in place.
Tilt Steering Column
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 101
3

WARNING!
Tilting the steering column while the vehicle is
moving is dangerous. Without a stable steering col-
umn, you could lose control of the vehicle and have
an accident. Adjust the column only while the ve-
hicle is stopped. Be sure it is locked before driving.
ELECTRONIC SPEED CONTROL — IF EQUIPPED
When engaged, this device takes over the accelerator
operation at speeds greater than 35 mph (56 km/h). The
speed control lever is located on the right side of the
steering wheel.
To Activate
Push the ON/OFF button. The Cruise Indicator Light in
the instrument cluster will illuminate. To turn the system
OFF, push the ON/OFF button a second time. The Cruise
Indicator Light will turn off. The system should be
turned OFF when not in use.
Speed Control Switches
102 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Accelerate For Passing
Depress the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Speed Control On Hills
NOTE:The speed control system maintains speed up
and down hills. A slight speed change on moderate hills
is normal.
On steep hills, a greater speed loss or gain and/or more
frequent downshifts (auto transmission only) may occur
so it may be preferable to drive without speed control.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes ABS (Anti-Lock Brake
System), TCS (Traction Control System), BAS (Brake
Assist System), ERM (Electronic Roll Mitigation), and ESP (Electronic Stability Program). All five of these
systems work together to enhance vehicle stability and
control in various driving conditions.
ABS (Anti-Lock Brake System)
This system aids the driver in maintaining vehicle control
under adverse braking conditions. The system controls
hydraulic brake pressure to prevent wheel lock-up and
help avoid skidding on slippery surfaces during braking.
Refer to “Anti-Lock Brake System” in Section 5 of this
manual for more information about ABS.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 105
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WARNING!
ABS (Anti-Lock Brake System) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ABS cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of an ABS-
equipped vehicle must never be exploited in a reck-
less or dangerous manner which could jeopardize the
user’s safety or the safety of others.
TCS (Traction Control System)
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 ESP are in either the “Partial Off” or “Full Off”
modes. Refer to “ESP (Electronic Stability Program)” in
this section.
106 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ERM (Electronic Roll Mitigation)
This system anticipates the potential for wheel lift by
monitoring the driver ’s steering wheel input and the
speed of the vehicle. When ERM determines that the rate
of change of the steering wheel angle and vehicles speed
are sufficient to potentially cause wheel lift, it applies the
appropriate brake and may reduce engine power to
lessen the chance that wheel lift will occur. ERM will only
intervene during very severe or evasive driving maneu-
vers.
ERM can only reduce the chance of wheel lift occurring
during severe or evasive driving maneuvers. It cannot
prevent wheel lift due to other factors such as road
conditions, leaving the roadway or striking objects or
other vehicles.NOTE:
Anytime the ESP system is in the “Full Off”
mode, ERM is disabled. Refer to ESP (Electronic Stability
Program) for a complete explanation of the available ESP
modes.
WARNING!
Many factors, such as vehicle loading, road condi-
tions and driving conditions, influence the chance
that wheel lift or rollover may occur. ERM cannot
prevent all wheel lift or rollovers, especially those
that involve leaving the roadway or striking objects
or other vehicles. Only a safe, attentive, and skillful
driver can prevent accidents. The capabilities of an
ERM-equipped vehicle must never be exploited in a
reckless or dangerous manner which could jeopar-
dize the user’s safety or the safety of others.
108 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ESP (Electronic Stability Program)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for over/under steering of the vehicle by applying
the brake of the appropriate wheel to assist in counter-
acting the over/under steer condition. Engine power
may also be reduced to help the vehicle maintain the
desired path.
ESP 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, ESP applies the brake of the appropri-
ate 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 ESP/TCS Indicator Light (located in the instrument
cluster), starts to flash as soon as the tires lose traction
and the ESP system becomes active. The ESP/TCS Indi-
cator Light also flashes when TCS is active. If the
ESP/TCS Indicator Light begins to flash during accelera-
tion, 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.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 109
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WARNING!
ESP (Electronic Stability Program) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ESP cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of an ESP-
equipped vehicle must never be exploited in a reck-
less or dangerous manner which could jeopardize the
user’s safety or the safety of others.
The ESP system has three available operating modes in
4H range. The system has one operating mode in 4L
range. 2WD vehicles and 4WD vehicles in 2H range have
two operating modes.
4H Range (4WD Models) or 2WD Models
On
This is the normal operating mode for ESP in 4H and
2WD vehicles. Whenever the vehicle is started or the
transfer case (if equipped) is shifted from 4L range or
NEUTRAL back to 4H range, the ESP system will be in
this mode. This mode should be used for most all driving
situations. ESP should only be turned to “Partial Off” or
“Full Off” for specific reasons as noted below.
Partial Off
This mode is entered by momentarily depressing the ESP
OFF switch. When in Partial Offmode, the TCS portion
of ESP has been disabled and the ESP/TCS Indicator
Light will be illuminated. All other stability features of
ESP function normally. This mode is intended to be used
if the vehicle is in deep snow, sand, or gravel conditions
and more wheel spin than ESP would normally allow is
110 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

40 mph (48 km/h), the normal ESP stability function
returns but TCS remains off. When the vehicle speed
drops below 35 mph (40 km/h), the ESP system shuts off.
ESP is off at low vehicle speeds in 4L range so that it will
not interfere with off-road driving, but the ESP function
returns to provide the stability feature at speeds above 40
mph (48 km/h). The ESP/TCS Indicator Light will al-
ways be illuminated in 4L range when ESP is off.
NOTE:The “ESP 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 ESP switched off, the enhanced vehicle
stability offered by ESP and ERM are unavailable. In
an emergency evasive maneuver, the ESP and ERM
systems will not engage to assist in maintaining
stability. The “Full Off” mode is intended for off-
road use only.
Disabling ESP for Modified Vehicles (4WD Models
Only)
Vehicles modified with larger tires and/or suspension
lifts may experience early ESP activations as compared to
a non-modified production vehicle depending on lift
size, tire size, suspension changes and/or driving habits.
If early ESP activations are experienced while driving a
modified vehicle, the additional ability to permanently
turn off ESP is available. A steering wheel/ESP button
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 113
3

maneuver must be performed to permanently disable
ESP and defeat the functionality of the ESP switch.
Repeating the procedure will return the system to normal
ESP operation and restore ESP switch functionality al-
lowing ESP “Partial” or “Off” modes.
WARNING!
With ESP in the permanent disable mode, enhanced
vehicle stability offered by the ESP and ERM sys-
tems is unavailable. In an emergency evasive maneu-
ver, the ESP and ERM systems will not engage to
assist in maintaining stability. This disabled mode is
intended for off-highway or off-road use only. Ve-
hicle modifications requiring the owner to configure
the vehicle in the ESP disabled mode, will seriously
affect the vehicles roadworthiness and safety and
may lead to loss of control and/or accident resulting
in possible serious or fatal injuries.The following procedure will disable (or re-enable) ESP
functionality in the vehicle.
1. Shift the transfer case into the 4H range position.
2. Turn the steering wheel until it is centered and the
wheels are pointed straight ahead.
3. Cycle the ignition key OFF to ON.
4. Wait approximately five seconds for the system bulb
check.
5. Turn and hold the steering wheel one-half turn to the
right (clockwise).
6. Press and hold the ESP OFF button for seven seconds.
7. Turn the steering wheel back to center, and turn and
hold an additional one-half turn to the left (counterclock-
wise).
8. Press and hold the ESP OFF button for seven seconds.
114 UNDERSTANDING THE FEATURES OF YOUR VEHICLE