2012 JEEP GRAND CHEROKEE bulb

•Oil Pressure Warning LightThis telltale indicates low engine oil pressure. If
the light turns on while driving, stop the vehicle
and shut off the engine as soon as possible. A chime will
sound for four minutes when this light turns on.
Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
•Charging System Light This light shows the status of the electrical charg-
ing system. If the light stays on or comes on while
driving, turn off some of the vehicle’s non-essential
electrical devices or increase engine speed (if at idle). If
the charging system light remains on, it means that the
vehicle is experiencing a problem with the charging
system. Obtain SERVICE IMMEDIATELY. See an autho-
rized dealer. If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies”.
•Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. 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 an authorized dealer.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off.
If the light remains lit with the engine running, your
vehicle will usually be drivable. However, see an autho-
rized dealer for service as soon as possible. If the light is
flashing when the engine is running, immediate service is
308 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Brake System ....................... 597
▫ Front/Rear Axle Fluid ................. 599
▫ Transfer Case ....................... 600
▫ Automatic Transmission ............... 601
▫ Appearance Care And Protection From
Corrosion .......................... 604
 Fuses .............................. 610
▫ Totally Integrated Power Module ......... 610
 Vehicle Storage ....................... 616
 Replacement Bulbs .................... 616
 Bulb Replacement ..................... 617
▫ High Intensity Discharge Headlamps (HID) –
If Equipped ........................ 617 ▫
Halogen Headlamps – If Equipped ........ 618
▫ Front Turn Signal .................... 618
▫ Front Fog Lamps .................... 619
▫ Rear Tail, Stop, Turn Signal, And Backup
Lamps ............................ 620
▫ Rear Liftgate Mounted Tail Lamp ......... 620
▫ Center High-Mounted Stop Lamp
(CHMSL) .......................... 621
▫ Rear License Lamp ................... 622
 Fluid Capacities ...................... 622
 Fluids, Lubricants, And Genuine Parts ....... 623
▫ Engine ............................ 623
▫ Chassis ........................... 624
572 MAINTAINING YOUR VEHICLE

the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing. Normally, the OBD II system will be ready. The OBD II
system may
notbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II 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 II system is ready, you must
do the following:
1. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
576 MAINTAINING YOUR VEHICLE

CAUTION! (Continued)
•When replacing a blown fuse, it is important to
use only a fuse having the correct amperage rating.
The use of a fuse with a rating other than indicated
may result in a dangerous electrical system over-
load. If a properly rated fuse continues to blow, it
indicates a problem in the circuit that must be
corrected.
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 #J13 in the Totally Integrated Power
Module (TIPM) 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
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior LightsBulb Type
Glove Box Lamp ......................... 194
Grab Handle Lamp ................ L002825W5W
Overhead Console Reading Lamps .........VT4976
Rear Cargo Lamp ....................... 214–2
Visor Vanity Lamp ..................... V26377
Underpanel Courtesy Lamps ................ 906
Instrument Cluster (General Illumination) ....... 103
Telltale/Hazard Lamp ...................... 74
616 MAINTAINING YOUR VEHICLE

Exterior LightsBulb Type
Headlamps (Low Beam) ................... H11
Headlamps (High Beam) ..................9005
Headlamps (Low Beam) – High Intensity
Discharge (HID) . . . D1S (Serviced at Authorized Dealer)
Front Park/Turn Lamp .................7444NA
Front Fog Lamps ..................... PSX24W
Front Side Marker ........................ 194
Daytime Running Lamp (DRL) .............3157K
Aux Aperature Backup Lamps ........7440 (W21W)
Auxiliary Liftgate Tail Lamps .............. W3W
Liftgate Backup Lamps .............. 921(W16W)
Rear License Lamps ..................... W5W
Rear Turn/Stop/Tail Lamps ................3057
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
High Intensity Discharge Headlamps (HID) – If
Equipped
The headlamps are a type of high voltage discharge tube.
High voltage can remain in the circuit even with the
headlamp switch off and the key removed. Because of
this, you should not attempt to service a headlamp bulb
yourself. If a headlamp bulb fails, take your vehicle to
an authorized dealer for service.
WARNING!
A transient high voltage occurs at the bulb sockets of
High Intensity Discharge (HID) headlamps when the
headlamp switch is turned ON. It may cause serious
electrical shock or electrocution if not serviced prop-
erly. See your authorized dealer for service.
7
MAINTAINING YOUR VEHICLE 617

NOTE:On vehicles equipped with High Intensity Dis-
charge (HID) headlamps, when the headlamps are
turned on, there is a blue hue to the lamps. This dimin-
ishes and becomes more white after approximately
10 seconds, as the system charges.
Halogen Headlamps – If Equipped
1. Open the hood.
2. Turn the low or high beam bulb one–quarter turn
counterclockwise to remove from housing.
3. 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.
Front Turn Signal
1. Open the hood.
2. Turn the turn signal bulb one–quarter turn counter-
clockwise to remove from housing.
3. 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.
618 MAINTAINING YOUR VEHICLE

Front Fog Lamps
1. Reach through the cutout in the splash shield and
disconnect the wiring harness from the fog lamp connec-
tor.
2. Firmly grasp the bulb by the two latches and squeeze
them together to unlock the bulb from the back of the
front fog lamp housing.
3. Pull the bulb straight out from the keyed opening in
the housing.
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.(Continued)
CAUTION! (Continued)
•Always use the correct bulb size and type for
replacement. An incorrect bulb size or type may
overheat and cause damage to the lamp, the socket
or the lamp wiring.
4. Align the index tabs of the front fog lamp bulb with
the slots in the collar of the bulb opening on the back of
the front fog lamp housing.
5. Insert the bulb into the housing until the index tabs are
engaged in the slots of the collar.
6. Firmly and evenly push the bulb straight into the lamp
housing until both tabs snap firmly into place and are
fully engaged.
7. Connect the wiring harness to the front fog lamp
connector.
7
MAINTAINING YOUR VEHICLE 619

Rear Tail, Stop, Turn Signal, And Backup Lamps
1. Raise the liftgate.
2. Remove the two push-pins from the tail lamp housing.
3. Grasp the tail lamp and pull firmly rearward to
disengage the lamp from the aperture panel.
4. Twist socket counter clockwise and remove from
lamp.5. Pull the bulb to remove it from the socket.
6. Replace the bulb, reinstall the socket, and reattach the
lamp assembly.
Rear Liftgate Mounted Tail Lamp
1. Raise the liftgate.
2. Use a fiber stick or flat blade screw driver to pry the
lower trim from the liftgate.
3. Once lower trim is loose, close the liftgate.
4. Open the flipper glass.
5. Pull up glass seal at bottom of window opening.
6. Remove small trim panel around liftgate glass striker.
7. Close flipper glass and raise the liftgate.
8. Continue removing the trim.
9. Disconnect the two trim panel lights.
620 MAINTAINING YOUR VEHICLE