2008 JEEP COMMANDER bulb

is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key actuated test
which you can use prior to going to the test station. To
check if your vehicle's OBD system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn off the
ignition key or start the engine. This means that your
vehicle's OBD system isnot readyand you shouldnot
proceed to the I/M station.
b. The MIL will not flash at all and will remain fully
illuminated until you turn off the ignition key or start
the engine. This means that your vehicle's OBD system
isreadyand you can proceed to the I/M station.
If your OBD system isnot ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
MAINTAINING YOUR VEHICLE 387
7

²Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning 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 compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior Lights Bulb Type
Glove Box Light......................... 194
Grab Handle Light................L002825W5W
Overhead Console Reading Lights..........VT4976
Rear Cargo Light.......................214±2
Visor Vanity Light.....................V26377
Underpanel Courtesy Lights................. 906
Instrument Cluster (General Illumination)....... 103
Telltale/Hazard Light...................... 74
* Available only from authorized dealers.Exterior Lights Bulb Type
Backup Lights.........................3057K
Front Fog Lights........................9145
Front Park/Turn Light...................3157A
Front Side Marker...................... W5W
Headlights (Low Beam)...................9006
Headlights (High Beam)...................9005
Rear Turn/Stop/Tail Lights...............3057K
NOTE:Numbers refer to commercial bulb types that
can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
MAINTAINING YOUR VEHICLE 427
7

BULB REPLACEMENT
Head Light
1. Open the hood.
2. Remove the headlamp cover.
Insert a finger into each hole of the headlamp cover, and
pull upward to unsnap the rear edge of the cover from
the two upper lamp mounting brackets. Slide the cover
rearward to disengage the front edge from beneath the
tab on the top near the front of the lamp housing.
3. Disconnect the electrical connector.
4. Turn the low or high beam bulb 1/4 turn counter
clockwise to unlock it from the housing.
428 MAINTAINING YOUR VEHICLE

5. Pull the bulb and base straight out from the opening in
the reflector.
CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the
bulb comes in contact with any oily surface, clean the
bulb with rubbing alcohol.
1 Ð Low Beam Bulb
2 Ð High Beam Bulb
3 Ð Front Park/Turn Signal BulbMAINTAINING YOUR VEHICLE 4297

Front Turn Signal
1. Turn the steering wheel all the way to the left or right.
2. Reach into the front wheel house ahead of the front
wheel to unsnap and lift the cover over the access hole in
the front of the wheel house splash shield. Access to the
bulb can be gained through the wheel liner hole.3. Reach through the access hole to access the park/turn
signal bulb socket on the bottom of the front lamp unit
housing.
1 Ð Low Beam Bulb
2 Ð High Beam Bulb
3 Ð Front Park/Turn Signal Bulb 430 MAINTAINING YOUR VEHICLE

4. Turn the socket on the bottom of the front lamp unit
housing 1/4 turn counter clockwise to unlock it.
5. Pull the socket and bulb straight out from the opening
in the housing.
6. Disconnect the electrical connector.
7. Pull the base of the bulb straight out of the socket.
CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the
bulb comes in contact with any oily surface, clean the
bulb with rubbing alcohol.
Front Fog Light
1. Turn the steering wheel all the way to the left or right.
2. Reach into the front wheel house ahead of the front
wheel to unsnap and lift the cover over the access hole in
the front of the wheel house splash shield. Access to the
bulb can be gained through the wheel liner hole.
MAINTAINING YOUR VEHICLE 431
7

3. Reach through the access hole to access the back of the
front fog light housing on the back of the front fascia.
4. Disconnect the electrical connector.
5. Turn the socket on the back of the housing 1/4 turn
counter clockwise to unlock it.
6. Pull the socket and bulb straight out from the opening
in the housing.
7. Pull the base of the bulb straight out of the socket.
CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the
bulb comes in contact with any oily surface, clean the
bulb with rubbing alcohol.
Rear Tail, Stop, Turn Signal, and Back-Up Lights
1. Raise the liftgate.
2. Remove the two push-pins that secure the rear lamp
unit to the side of the liftgate opening.
432 MAINTAINING YOUR VEHICLE

3. Pull the outboard side of the rear lamp unit rearward
far enough to unsnap the two ball studs on the outboard
side of the lamp housing from the two plastic grommets
in the quarter outer panel. Pull the lamp unit rearward
far enough away to access the bulbs.
4. Firmly grasp the appropriate bulb socket on the back
of the rear lamp unit housing, and turn 1/4 turn counter
clockwise to unlock it.
5. Disconnect the electrical connector.
6. Pull the socket and bulb straight out from the opening
in the housing.
1 Ð Rear Backup Lamp Bulb
2 Ð Rear Park/Stop Lamp Bulb
3 Ð Rear Park/Turn Signal Bulb
4 Ð Rear Side Marker Lamp BulbMAINTAINING YOUR VEHICLE 4337