2007 JEEP WRANGLER engine

up on the accelerator and apply as little throttle as
possible. Be sure to adapt your speed and driving to the
prevailing road conditions. The “ESP/TCS Indicator
Light” will flash any time the ESP or TCS is active and
helping to improve vehicle stability. If the “ESP/TCS
Indicator Light” is on solid, the ESP system has been
turned off by the driver or a temporary condition exists
that will not allow full ESP function.
27. O/D (Overdrive) Off Indicator Light
This light will illuminate when the O/D OFF
button has been selected. The O/D OFF button is
located on the gear shift lever.
28. Sway Bar Indicator Light — If Equipped
This light will illuminate when the front sway
bar is disconnected.29. Electronic Stability Program (ESP) Warning
Light/Brake Assist System (BAS) Warning Light
The ESP/BAS warning light in the instrument
cluster comes on when the ignition switch is
turned to the “ON” position. The light should
go out with the engine running. If the ESP/
BAS warning light comes on continuously with the
engine running, a malfunction has been detected in either
the ESP or the BAS system. If this light stays illuminated,
have the ESP and BAS checked at your authorized dealer
as soon as possible. Refer to “Electronic Brake Control
System” in Section 5 for more information.
UNDERSTANDING YOUR INSTRUMENT PANEL 209
4

30. Electronic Throttle Control (ETC) Warning Light —
If Equipped
This light informs you of a problem with the
Electronic Throttle Control System. If a prob-
lem is detected while the engine is running, the
light will either stay on or flash depending on
the nature of the problem. Cycle the ignition key when
the vehicle is safely and completely stopped and the gear
selector is placed in the P (Park) position. The light
should turn off. If the light remains on with the engine
running, your vehicle will usually be drivable, however,
see your dealer for service as soon as possible.
If the light continues to flash when the engine is running,
immediate service is required and you may experience
reduced performance, an elevated / rough idle, or engine
stall and your vehicle may require towing. The light will
come on when the ignition is first turned on and remainon briefly as a bulb check. If the light does not come on
during starting, have the system checked by an autho-
rized dealer.
31. Compass/Mini-Trip Computer Display — If
Equipped
When the appropriate conditions exist, this display
shows the Mini-Trip Computer messages. Refer to “Mini-
Trip Computer” later in this section.
32. Compass/Mini-Trip Computer Button—If Equipped
Press this button to switch between the different func-
tions.
210 UNDERSTANDING YOUR INSTRUMENT PANEL

After initial calibration, the compass will continue to
automatically update this calibration whenever the ve-
hicle is in motion.
Manual Compass Calibration
NOTE: Before attempting a manual compass calibra-
tion, the engine must be running and the transmission
in the P (Park) position (if equipped).
Compass calibration can also be requested. To manually
calibrate the compass, you must first enter the variance
mode. Press the and hold the left button (located on the
instrument cluster) for approximately 10 seconds to enter
the variance mode, and release the button when the VAR
symbol appears. The current variance value will also be
displayed. Once in the variance mode, it is necessary to
release the button, and then press and hold it again
(approximately 10 seconds) until CAL is displayed (solid
not blinking). Manual compass calibration has been
initiated. Drive the vehicle slowly in one or more circlesunder 5 mph (8 km/h) in an area free from large metal
objects until the CAL symbol is extinguished.
When the CAL symbol no longer is displayed, the
compass is calibrated and should display correct head-
ings. Verify proper calibration by checking North (N),
South (S), East (E), and West (W). If the compass does not
appear accurate, repeat the calibration procedure in an-
other area.
Compass Variance
Variance is the difference between magnetic North and
geographic North. For proper compass function, the
correct variance zone must be set.
Setting the Compass Variance
Refer to the variance map for the correct compass vari-
ance zone. To check the variance zone, the ignition must
be on. Press and hold the left button (located on the
instrument cluster) for approximately 10 seconds to enter
the variance mode and release the button when the VAR
214 UNDERSTANDING YOUR INSTRUMENT PANEL

TIME Button (Auxiliary Mode)
Press this button to change the display from elapsed
playing time to time of day. The time of day will display
for 5 seconds.
RW/FF (Auxiliary Mode)
No function.
SET Button (Auxiliary Mode)
No function.
Operating Instructions - Hands Free Phone
(UConnect™) (If Equipped)
Refer to “Hands-Free Communication (UConnect™)” in
Section 3 of this manual.
Operating Instructions - Satellite Radio Mode (If
Equipped)
Refer to “Satellite Radio” in this section.
Operating Instructions - Video Entertainment
System (VES) (If Equipped)
Refer to separate Video Entertainment System (VES) Guide.
Dolby
Manufactured under license from Dolby Laboratories.
Dolbyand the double-D symbol are trademarks of
Dolby Laboratories.
Macrovision
This product incorporates copyright protection technol-
ogy that is protected by U.S. patents and other intellec-
tual property rights. Use of this copyright protection
technology must be authorized by Macrovision, and is
intended for home and other limited viewing uses only
unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited
DTS
DTSandDTS 2.0are trademarks of Digital Theater
Systems, Inc.
232 UNDERSTANDING YOUR INSTRUMENT PANEL

moisture build up inside the vehicle. For maximum
defogging, select the Outside Air position.
NOTE:The “Recirculate” mode will not operate in floor,
mix or defrost modes.
Air Conditioning Operation
Press this button to engage
the air conditioning. A lamp
will illuminate when the air
conditioning system is en-
gaged
NOTE:The air conditioning compressor will not engage
until the engine has been running for about 10 seconds.
Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it’s rainy or humid. In most cases
turning on the air-conditioning (pressing the snowflake
button) will clear the fog. Adjust the temperature control,
air direction and blower speed to maintain comfort.
As the temperature gets colder it may be necessary to
direct air onto the windshield. Adjust the temperature
control and blower speed to maintain comfort. Higher
blower speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by selecting the
defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
258 UNDERSTANDING YOUR INSTRUMENT PANEL

smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant during summer to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50 %
concentration is recommended. Refer to Fluids and
Genuine Parts in Section 7 for the proper coolant type.
When using the air conditioner in extremely heavy traffic
in hot weather especially when towing a trailer, addi-
tional engine cooling may be required. If this situation is
encountered, operate the transmission in a lower gear to
increase engine RPM, coolant flow and fan speed. When
stopped in heavy traffic, it may be necessary to shift into
N (Neutral) and depress the accelerator slightly for fast
idle operation to increase coolant flow and fan speed.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstruc-
tions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will insure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
UNDERSTANDING YOUR INSTRUMENT PANEL 259
4

STARTING AND OPERATING
CONTENTS
Starting Procedures.....................265
▫Manual Transmission..................265
▫Automatic Transmission................265
▫Normal Starting......................265
▫Extreme Cold Weather
(Below –20°F Or –29°C).................266
▫If Engine Fails To Start.................266
▫After Starting........................268
Engine Block Heater — If Equipped.........269Manual Transmission....................269
▫6-Speed Manual Transmission............269
Automatic Transmission..................273
▫Shift Lock Manual Override..............274
▫Brake/Transmission Interlock System.......275
▫Automatic Transmission With Overdrive.....275
Four–Wheel Drive Operation (Command-Trac™
Or Rock-Trac™) — If Equipped.............280
▫Operating Instructions/Precautions.........280
5

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
Never leave children alone in a vehicle. Leaving
children in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri-
ously or fatally injured. Do not leave the keys in the
ignition. A child could operate power windows,
other controls, or move the vehicle.
Manual Transmission
Apply the parking brake, place the gearshift control lever
in N (Neutral) and depress the clutch pedal before
starting vehicle. This vehicle is equipped with a clutch
interlocking ignition system. It will not start unless the
clutch pedal is pressed to the floor.4WD Models Only
In 4L mode, this vehicle will start regardless of whether
or not the clutch pedal is pressed to the floor. This feature
enhances off-road performance by allowing the vehicle to
start when in 4L without having to depress the clutch
pedal. The “4WD Indicator Light” will illuminate when
the transfer case has been shifted into this mode.
Automatic Transmission
Start the engine with the selector lever in the N (Neutral)
or P (Park) position. Apply the brake before shifting to
any driving range.
Normal Starting
Normal starting of either a cold or a warm engine is
obtained without pumping or depressing the accelerator
pedal. Turn the key to the START position and release
when the engine starts. If the engine fails to start within
10 seconds, turn the key to the OFF position, wait 5
seconds, then repeat the normal starting procedure.
STARTING AND OPERATING 265
5