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Turn Signal Indicator Lights
Green Tell-tale Light What It Means
Turn Signal Indicator Lights
The instrument cluster directional arrow will flash independently for the LEFT or RIGHT turn
signal as selected, as well as the exterior turn signal lamp(s) (front and rear) as selected when
the multifunction lever is moved down (LEFT) or up (RIGHT).
NOTE:
•A continuous chime will sound if the vehicle is driven more than 1 mile (1.6 km) with either
turn signal on.
•Check for an inoperative outside light bulb if either indicator flashes at a rapid rate.
326 UNDERSTANDING YOUR INSTRUMENT PANEL
Page 790 of 919

▫Body Lubrication .....................811
▫ Windshield Wiper Blades ...............812
▫ Adding Washer Fluid ..................815
▫ Exhaust System ..................... .816
▫ Cooling System ..................... .818
▫ Brake System ....................... .825
▫ Rear Axle And 4x4 Front Driving Axle Fluid
Level ............................. .827
▫ Transfer Case ....................... .829
▫ Automatic Transmission ................829
▫ Appearance Care And Protection From
Corrosion .......................... .833
FUSES ............................. .841
▫ Power Distribution Center ...............842
VEHICLE STORAGE ....................851
REPLACEMENT BULBS .................852
BULB REPLACEMENT ..................854
▫ Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park
And Turn — If Equipped ...............854
▫ Fog Lamps — If Equipped ..............856
▫ Rear Tail/Stop, Turn Signal And Backup
Lamps ............................ .857
▫ Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp ........................ .858
▫ Cab Top Clearance Lamps — If Equipped . . . .860
▫ Rear Lamp Bar ID Marker (Dual Rear Wheels) —
If Equipped ......................... .862
788 MAINTAINING YOUR VEHICLE
Page 797 of 919

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 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. Cycle the ignition switch to the ON position, but do
not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the “Malfunction Indicator Light
(MIL)” symbol come on as part of a normal bulb
check.
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MAINTAINING YOUR VEHICLE 795
Page 854 of 919
•Any time 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
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
Interior Bulbs
Bulb Number
Overhead Console
Lamps TS 212–9
Dome Lamp 7679
For lighted switches, see your authorized dealer for
replacement instructions.
Exterior Bulbs
Bulb Number
Base Quad Headlamp –
Low Beam H11LL
Base Quad Headlamp –
High Beam 9005LL
Front Turn Signal Lamp
(Base Quad Headlamp) 3157NA
852 MAINTAINING YOUR VEHICLE
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Bulb Number
Premium Bi Halogen
Projector Headlamp -
Low Beam 9005Sl+
Premium Bi Halogen
Projector Headlamp -
High Beam 9005LL
Front Turn Signal Lamp
(Premium Headlamp) LED (Serviced at Autho-
rized Dealer)
Fog Lamp (Horizontal
shape) 9145
Fog Lamp (Vertical
shape) 9006
Center High Mounted
Stop Lamp (CHMSL) 921K
Rear Cargo Lamp 921Bulb Number
LED Center High
Mounted Stop Lamp
(CHMSL)/Cargo Lamp LED (Serviced at Autho-
rized Dealer)
Cab Roof Marker Lamps 194NA
Base Rear Tail/Turn and
Stop Lamp 3157K
Premium Rear Tail/Turn
and Stop Lamp LED (Serviced at Autho-
rized Dealer)
Premium Backup Lamp 7440/W21W
Rear Lamp Bar ID
Marker Lamp 194
Side Marker Lamps
(Dual Rear Wheels) 194
Backup Lamp 921
Rear License Plate Lamp 194
7
MAINTAINING YOUR VEHICLE 853
Page 856 of 919
BULB REPLACEMENT
NOTE:Lens fogging can occur under certain atmo-
spheric conditions. This will usually clear as atmospheric
conditions change to allow the condensation to change
back into a vapor. Turning the lamps on will usually
accelerate the clearing process.
Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park And
Turn — If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the six plastic push-in fasteners that secure the upper radiator seal to the grille support and both
fender ledges.
4. Remove the two plastic push-in rivets that secure the upper radiator seal to the radiator. 5. Remove the upper radiator seal from the vehicle.
6. Remove the two headlamp assembly attachment
screws.
Headlamp Assembly Attachment Screw Locations
854 MAINTAINING YOUR VEHICLE
Page 857 of 919
7. Reach into the front wheel house ahead of the frontwheel, remove the fastener, and lift the cover over the
access hole in the front of the wheel house splash
shield. Access to the rear of the lamp can be gained
through this access hole.
8. Reach through the access hole of the wheel house splash shield and lift the slide lock upward far enough
to disengage it from the lock post on the back of the
front lamp unit housing.
9. Remove the headlamp assembly. Grasp the outboardedge of the lamp and pull it straight forward to
disengage the ball stud from the plastic grommet.
10. Disconnect the wiring harness connectors from the bulb socket.
Slide Lock
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MAINTAINING YOUR VEHICLE 855
Page 858 of 919

11. Replace bulb(s) as necessary.
CAUTION!
•Do not contaminate the bulb glass by touching it
with your fingers or by allowing it to contact other
oily surfaces. Shortened bulb life will result.
• 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 bulb
socket, or the lamp wiring.
NOTE: There are access covers over both headlamp bulb
access holes in the quad front lamp unit housing (if
equipped). These covers MUST be reinstalled after the
bulb has been replaced.
Fog Lamps — If Equipped
1. Reach under and behind the front bumper to access the back of the front fog lamp housing.
2. Disconnect the fog lamp wiring harness connector from the fog lamp bulb.
3. Rotate the bulb counterclockwise ¼ turn to unlock the bulb from the housing.
4. Pull the bulb straight out from the housing.
CAUTION!
Do not contaminate the bulb glass by touching it
with your fingers or by allowing it to contact other
oily surfaces. Shortened bulb life will result.
856 MAINTAINING YOUR VEHICLE