ignition JEEP WRANGLER 2008 Owner's Manual

Eject Button — Ejecting Compact Disc(s)
Press the EJECT button and the pushbutton
with the corresponding number (1-6) where the
CD was loaded and the disc will unload and
move to the entrance for easy removal. Radio
display will show EJECTING DISCwhen the disc is
being ejected and prompt the user to remove the disc.
Press and hold the EJECT button for five seconds and all
CDs will be ejected from the radio.
The disc can be ejected with the radio and ignition OFF.
SEEK Button (CD MODE)
Press the right SEEK button for the next selection on the
CD. Press the left SEEK button to return to the beginning
of the current selection, or return to the beginning of the
previous selection if the CD is within the first second of
the current selection. Pressing and holding the SEEK
button will allow you to scroll through the tracks faster in
CD, MP3/MWA modes.
SCAN Button (CD MODE)
Press the SCAN button to scan through each track on the
CD currently playing.
TIME Button (CD MODE)
Press this button to change the display from a large CD
playing time display to a small CD playing time display.
RW/FF (CD MODE)
Press and hold FF (Fast Forward) and the CD player will
begin to fast forward until FF is released, or RW or
another CD button is pressed. The RW (Rewind) button
works in a similar manner.
AM or FM Button (CD MODE)
Switches the radio to the Radio mode.

System Activation
Sirius Satellite Radio service is pre-activated, and you
may begin listening immediately to the one year of audio
service that is included with the factory-installed satellite
radio system in your vehicle. Sirius will supply a wel-
come kit that contains general information, including
how to setup your on-line listening account at no addi-
tional charge. For further information, call the toll-free
number 888-539-7474, or visit the Sirius web site at
www.sirius.com, or at www.siriuscanada.ca for Cana-
dian residents.
Electronic Serial Number/Sirius Identification
Number (ESN/SID)
Please have the following information available when
calling:
1. The Electronic Serial Number/Sirius Identification
Number (ESN/SID).
2. Your Vehicle Identification Number.To access the ESN/SID, refer to the following steps:
ESN/SID Access With RES/REQ Radios
With the ignition switch in the ON/RUN or ACC posi-
tion and the radio ON, press the SETUP button and scroll
using the TUNE/SCROLL control knob until Sirius ID is
selected. Press the TUNE/SCROLL control knob and the
Sirius ID number will display. The Sirius ID number
display will time out in two minutes. Press any button on
the radio to exit this screen.
ESN/SID Access With RER/REN Radios
While in SAT mode, press the MENU button on the radio
faceplate.
Next touch the SUBSCRIPTION tab on the touch screen.
All the ESNs that apply to your vehicle will be displayed.
254 UNDERSTANDING YOUR INSTRUMENT PANEL

Turn the ignition switch to the START position and
release when the engine starts. If the engine fails to start
within 10 seconds, turn the ignition switch to the LOCK
position, wait 10 to 15 seconds, then repeat the normal
starting procedure.
Tip Start Feature — Automatic Transmission Only
Turn the ignition switch to START position and release it
as soon as the starter engages. The starter motor will
continue to run, but will automatically disengage itself
when the engine is running. If the engine fails to start, the
starter will disengage automatically in 10 seconds. If this
occurs, turn the ignition switch to the LOCK position,
wait 10 to 15 seconds, then repeat the normal starting
procedure.
Extreme Cold Weather (below –20°F or –29°C)
To ensure reliable starting at these temperatures, use of
an externally-powered electric engine block heater (avail-
able from your authorized dealer) is recommended.

If the engine shows no sign of starting after two 15
second periods of cranking with the accelerator pedal
held to the floor, repeat the “Normal Starting” or “Ex-
treme Cold Weather” procedures.
With Tip Start (Automatic Transmission Only)
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weather” proce-
dures, it may be flooded. To clear any excess fuel, push
the accelerator pedal all the way to the floor and hold it.
Then, turn the ignition switch to the START position and
release it as soon as the starter engages. The starter motor
will disengage automatically in 10 seconds. Once this
occurs, release the accelerator pedal, turn the ignition
switch to the LOCK position, wait 10 to 15 seconds, then
repeat the normal starting procedure.

The rear axle lock will disengage if the vehicle is taken
out of 4L (Low) range, or the ignition switch is turned to
the OFF position.
ELECTRONIC SWAY BAR DISCONNECT — IF
EQUIPPED
Your vehicle may be equipped with an electronic discon-
necting stabilizer/sway bar. This system allows greater
front suspension travel in off-road situations.
This system is controlled by the electronic control SWAY
BAR switch located on the lower switch bank (below the
climate controls).Press the SWAY BAR switch to activate the system. Press
the switch again to deactivate the system. The Sway Bar
Indicator Light (located in the instrument cluster) will
illuminate when the bar is disconnected. The Sway Bar
Indicator Light will flash during activation transition, or

PARKING BRAKE
To set the parking brake, pull the lever up as firmly as
possible. When the parking brake is applied with the
ignition ON, the Brake Warning Light in the instrument
cluster will light. To release the parking brake, pull up
slightly, press the center button, then lower the lever
completely.
NOTE:The instrument cluster Brake Warning Light
indicates only that the parking brake is applied. You must
be sure the parking brake is fully applied before leaving
the vehicle.
Be sure the parking brake is firmly set when parked, and
the shift lever is in the PARK position (automatic trans-
mission), or REVERSE, or 1st gear (manual transmission).
When parking on a hill, you should apply the parking
brake before placing the shift lever in PARK, otherwise

WARNING!
Significant over or under-inflation of tires, or mixing
sizes of tires or wheels on the vehicle can lead to loss
of braking effectiveness.
The Anti-Lock Brake System conducts a low speed self-
test at about 12 mph (20 km/h). If for any reason, your
foot is on the brake when the vehicle reaches 12 mph (20
km/h), this check will be delayed until 25 mph (40
km/h).
The Anti-Lock Brake System pump motor runs during
the self-test, and during an ABS stop, to provide the
regulated hydraulic pressure. The motor pump makes a
low humming noise during operation, this is normal. During off-road use, loss of traction can temporarily
defeat the system and cause the warning light to illumi-
nate. Turn the ignition OFF and ON again to restore
Anti-Lock Brake System function.

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 10
minutes above 15 mph (25 km/h) to receive this infor-
mation.
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.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
NOTE:
If your vehicle is equipped with a matching
full-size spare wheel and tire assembly, it has a tire
pressure monitoring sensor, and can be monitored by the
Tire Pressure Monitoring System (TPMS). In the event
that the matching full-size spare tire is swapped with a
low pressure road tire, the next ignition key cycle will
still show the Tire Pressure Monitoring Telltale Light to
be ON, and a chime to sound. Driving the vehicle for up
to 10 minutes above 15 mph (25 km/h) will turn OFF the
Tire Pressure Monitoring Telltale Light as long as none of
the road tires are below the low pressure warning thresh-
old.
334 STARTING AND OPERATING

2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake on
both vehicles, shift the automatic transmission into
PARK, or the manual transmission into NEUTRAL, and
turn the ignition OFF.
3. Turn off the heater, radio, and all unnecessary electri-
cal loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.

To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing.
•Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating condi-
tions.
•Do not allow vehicle to run out of fuel.NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
Crankcase Emission Control System
Proper operation of this system depends on freedom
from sticking or plugging due to deposits. As vehicle
mileage builds up, the PCV valve and passages may
accumulate deposits. If a valve is not working properly,
replace it with a new valve. DO NOT ATTEMPT TO
CLEAN THE OLD PCV VALVE!
Check ventilation hose for indication of damage or
plugging deposits. Replace if necessary.
Fuel Filter
A plugged fuel filter can cause hard starting or limit the
speed at which a vehicle can be driven. Should an
excessive amount of dirt accumulate in the fuel tank,
frequent replacement of the fuel filter which is mounted
in the fuel tank may be necessary.
388 MAINTAINING YOUR VEHICLE