2005 JEEP GRAND CHEROKEE bulb

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,you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD
system to update. A recheck with the above test routine
may then indicate that the system is now ready.
Regardless of whether your vehicle’s OBD system is
ready or not ready, if the MIL symbol is illuminated
during normal vehicle operation, you should have your
vehicle serviced before going to the I/M station. The I/M
station can fail your vehicle because the MIL symbol is on
with the engine running.
REPLACEMENT PARTS
Use of genuine Moparparts for normal/scheduled
maintenance and repairs is highly recommended to in-
sure the designed performance. Damage or failures
caused by the use of non-Moparparts for maintenance
and repairs will not be covered by the manufacturer’s
warranty.
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7

VEHICLE STORAGE
If you are leaving your vehicle dormant for more than 21
days you may want to take steps to protect your battery.
You may:
•Remove fuse #27 in the Intelligent Power Module
labeled Ignition-Off Draw (IOD#1).
•Or, disconnect the negative cable from the battery.
•Anytime 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.........................3157A
Fog Lights.............................9145
Front Park Lights (Limited)...............194NA
Front Park Lights (Laredo)................194NA
Front Park/Turn Light (Limited)............3157A
350 MAINTAINING YOUR VEHICLE

Exterior Lights Bulb Type
Front Park/Turn Light (Laredo)............3157A
Front Side Marker (Limited)..............194NA
Front Side Marker (Laredo)...............194NA
Headlights (Low Beam)...................9006
Headlights (High Beam)...................9005
Rear License Plate Light.................... 168
Rear Stop/Tail Lights....................3157A
Rear Turn Signal Lights (2)................3157A
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.BULB REPLACEMENT
Head Light
1. Open the hood.
2. Remove the headlamp cover.
MAINTAINING YOUR VEHICLE 351
7

3. Turn the low or high beam bulb 1/4 turn counter
clockwise to remove from housing.
4. Disconnect the electrical connector and replace the
bulb.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.
352 MAINTAINING YOUR VEHICLE

Front Turn Signal
1. Open the hood.
2. Remove the headlamp cover.3. Turn the turn signal bulb 1/4 turn counter clockwise
to remove from housing.
4. Disconnect the electrical connector and replace the
bulb.
MAINTAINING YOUR VEHICLE 353
7

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. Reach behind the front fascia from under the vehicle.
2. Turn the front fog light bulb 1/4 turn counter clock-
wise to remove from housing.
3. Disconnect the electrical connector and replace bulb.
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.
354 MAINTAINING YOUR VEHICLE

Rear Tail, Stop, Turn Signal, and Back-Up Lights
1. Raise the liftgate.
2. Remove the two Torx fasteners.3. Squeeze the socket assembly tabs to remove it from the
housing.
4. Pull the bulb to remove it from the socket.
5. Replace the bulb, reinstall the socket, and reattach the
light assembly.
MAINTAINING YOUR VEHICLE 355
7

Center High Mounted Stop Light (CHMSL)
1. Remove the two screws securing the CHMSL.2. Twist the bulb socket to remove from the CHMSL
housing.
3. Pull the bulb out of the socket.
4. Replace the bulb, reinstall the socket and reattach the
CHMSL.
356 MAINTAINING YOUR VEHICLE