2008 JEEP WRANGLER engine

INSTRUMENT CLUSTER DESCRIPTION
Your vehicle is equipped with the instrument cluster
described on the following pages.
1. Fuel Gauge
The pointer shows the level of fuel in the fuel tank.
NOTE:When the ignition switch is turned to OFF, the
fuel gauge, voltmeter, oil pressure and temperature
gauges may not show accurate readings. When the
engine is not running, turn the ignition switch to ON to
obtain accurate readings.
2. Charging System Warning Light This light shows the status of the electrical charg-
ing system. The light should come on for three
seconds when the ignition is first turned ON. If the light
comes back on immediately or comes on while driving, it
means that there is a problem with the charging system
or the battery is low. Also, a chime will sound if the light
comes back on. See your authorized dealer immediately. 3. Front Fog Light Indicator Light — If Equipped
This light shows when the front fog lights are on.
4. Low Fuel Warning Light When the fuel level reaches approximately 2.8 gal
(10.6L) this light will turn on and a single chime
will sound.
5. Speedometer
Indicates vehicle speed.
6. Front Axle Lock Indicator Light — If Equipped Indicates when the front axle lock has been
activated.
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7. Seat Belt Indicator LightA warning chime and an indicator light will alert
you to buckle the seat belts. When the belt is
buckled, the chime will stop, but the light will stay
on until it times out (about six seconds).
8. Turn Signal Indicator Lights The arrows will flash with the exterior turn signals
when the turn signal lever is operated. A tone will
chime if the turn signals are left on for more than 1 mi (2
km).
9. Oil Pressure Warning Light Shows low engine oil pressure. The light will come
on and remain on when the ignition switch is
turned from the OFF to the ON position, and the light
will turn off after the engine is started. If the bulb does
not come on, have the system checked by your autho-
rized dealer. If the warning light comes on and remains on while
driving, stop the vehicle and shut off the engine. DO
NOT OPERATE THE VEHICLE UNTIL THE CAUSE IS
CORRECTED. Also, a single chime will sound.
10. High Beam Indicator Light
This light shows that the headlights are on high
beam. Push the multifunction control lever away
from you to switch the headlights to high beam. Pull the
lever towards you to switch the headlights back to low
beam. If the driver’s door is open, and the headlights or
park lights are left on, the High Beam Indicator Light will
remain illuminated and a chime will sound.
11. Brake Warning Light After the ignition is turned on, this light illumi-
nates to indicate function check at vehicle start-
up. It also indicates if the parking brake is
applied. If the light stays on when the parking brake is
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15. Tachometer
This light indicates the engine speed in revolutions per
minute (RPM).
CAUTION!
Do not operate the engine with the tachometer
pointer in the red area. Engine damage will occur.
16. Engine Coolant Temperature Warning Light This light warns of an overheated engine condi-
tion. If the engine is critically hot, a warning chime
will sound 10 times. After the chime turns off, the
engine will still be critically hot until the light goes out.
17. Sentry Key/Security Alarm Indicator Light — If
Equipped
Refer to “Sentry Key Immobilizer System” or “Vehicle
Security Alarm” in Section 2 of this manual. 18. Coolant Temperature Gauge
Indicates engine coolant temperature. The red
zone to the far right indicates possible overheat-
ing. Seek your authorized dealer immediately if
the gauge operates in the red zone. On U.S. vehicles, the
temperature is indicated in degrees fahrenheit; and on
Canadian vehicles in degrees centigrade.
19. Cruise Indicator Light This light shows when the electronic speed
control system is turned on.
20. 4WD Indicator Light — If Equipped This light alerts the driver that the vehicle is in
the four-wheel drive mode, and the front and
rear driveshafts are mechanically locked to-
gether forcing the front and rear wheels to
rotate at the same speed.
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U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so the correct mileage can be
determined.
Vehicle Warning Messages
When the appropriate conditions exist, messages such as
“door” (indicates that a door(s) may be ajar), “gATE” (if
the swing gate is open or ajar), “gASCAP” (which
indicates that your gas cap is possibly loose or damaged),
CHANgE OIL” (indicates that the engine oil should be
changed), “ESPOFF” (indicates that ESP is turned off),
and “noFUSE” (indicates that the Ignition Off Draw
(IOD) fuse is removed from the Integrated Power Mod-
ule), will display in the odometer.Change Oil Message
Your vehicle is equipped with an engine oil change
indicator system. The “CHANgE OIL” message will flash
in the instrument cluster odometer for approximately 12
seconds after a single chime has sounded to indicate the
next scheduled oil change interval. The engine oil change
indicator system is duty-cycle based, which means the
engine oil change interval may fluctuate dependent upon
your personal driving style.
Unless reset, this message will continue to display each
time you turn the ignition switch to the ON/RUN
position. To turn off the message temporarily, press and
release the Trip Odometer button on the instrument
cluster. To reset the oil change indicator system (after
performing the scheduled maintenance) refer to the fol-
lowing procedure.
1. Turn the ignition switch to the ON position (Do not
start the engine).
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2. Fully depress the accelerator pedal slowly three
times within 10 seconds.
3. Turn the ignition switch to the OFF/LOCK position.
NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary repeat this procedure.
25. Malfunction Indicator Light This light is a part of an Onboard Diagnostic
System called OBD II that monitors engine and
automatic transmission control systems. The light
will illuminate when the ignition is in the ON position
before engine start. If the bulb does not come on when
turning the key from OFF to ON, have the condition
checked promptly.
Certain conditions such as a loose or missing gas cap,
poor quality fuel, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light stays on through several typical driving styles. In most
situations, the vehicle will drive normally and will not
require towing.
When the engine is running, the Malfunction Indicator
Light may flash to alert serious conditions that could lead
to immediate loss of power or severe catalytic converter
damage. The vehicle should be serviced as soon as
possible if this occurs.
26. Electronic Stability Program (ESP) Indicator
Light/Traction Control System (TCS) Indicator Light
This indicator light starts to flash as soon as the
tires lose traction and the ESP system becomes
active. The ESP/TCS Indicator Light also
flashes when TCS is active. If the ESP/TCS
Indicator Light begins to flash during acceleration, 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. The ESP/TCS Indicator Light
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will flash anytime 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 LightThis light will illuminate when the O/D OFF
button has been selected. The O/D OFF button is
located on the center console.
28. Sway Bar Indicator Light — If Equipped This light will illuminate when the front sway
bar is disconnected.
29. Electronic Stability Program (ESP)/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 3 for more information.
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 shift
lever is placed in the 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
authorized dealer for service as soon as possible.
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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 remain
on briefly as a bulb check. If the light does not come on
during starting, have the system checked by your 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.COMPASS AND TRIP COMPUTER — IF
EQUIPPED
This feature, located on the instrument cluster (speedom-
eter and tachometer), displays information on outside
temperature, compass direction, and trip information.
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NOTE:Magnetic materials should be kept away from
the top of the instrument panel above the radio. This is
where the compass sensor is located.
Automatic Compass Calibration
The self-calibrating feature of the compass eliminates the
need to calibrate the compass for normal conditions.
During a short initial period, the compass may appear
erratic and the CAL symbol will appear (blinking) on the
display. After the vehicle has completed at least one
complete circle under 5 mph (8 km/h) in an area free
from large metal objects, calibration will be complete
when the CAL symbol is extinguished.
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 PARK position (if equipped).
If the compass seems in error or erratic, you may wish to
manually recalibrate the compass. To manually calibrate
the compass, you must first enter the variance mode.
Press and hold the left button (located on the instrument
cluster) for approximately 10 seconds to enter the vari-
ance mode, and release the button when the VAR (Com-
pass Variance) 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 calibra-
tion has been initiated. Drive the vehicle slowly in one or
more circles under 5 mph (8 km/h) in an area free from
large metal objects until the CAL symbol is extinguished.
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