2018 JEEP WRANGLER UNLIMITED turn signal bulb

tered position. To return the headlights to low
beam, pull the lever toward the steering
wheel, or push the lever toward the instru-
ment panel.
Flash-To-Pass
You can signal another vehicle with your
headlights by lightly pulling the multifunc-
tion lever toward you. This will cause the high
beam headlights to turn on, and remain on,
until the lever is released.
Automatic Headlights — If Equipped
This system automatically turns the head-
lights on or off according to ambient light
levels. To turn the system on, rotate the
headlight switch clockwise to the last detent
for automatic headlight operation. When the
system is on, the headlight time delay feature
is also on. This means the headlights will stay
on for up to 90 seconds after you place the
ignition into the OFF position. To turn the
automatic system off, move the headlight
switch out of the AUTO position.
NOTE:
The engine must be running before the head-
lights will come on in the automatic mode.
Front And Rear Fog Lights — If Equipped
The fog light switches are built into the head-
light switch.
To activate the front fog lights, push the
upper half of the headlight switch. To turn off
the front fog lights, push the upper half of the
headlight switch a second time.
To activate the rear fog lights, push the
lower half of the headlight switch. To turn off
the rear fog lights, push the lower half of the
headlight switch a second time.
NOTE:
To turn on the rear fog lamps, the low beam
lamps or front fog lamps must first be active.
An indicator light in the instrument cluster
illuminates when the fog lights are turned on.
Turn Signals
Move the multifunction lever up or down and
the arrows on each side of the instrument
cluster flash to show proper operation of the
front and rear turn signal lights.
NOTE:
If either light remains on and does not flash,
or there is a very fast flash rate, check for a
defective outside light bulb. If an indicator
fails to light when the lever is moved, it would
suggest that the indicator bulb is defective.
Multifunction LeverGETTING TO KNOW YOUR VEHICLE
36

MESSAGE DESCRIPTION
Engine Will Not Start Service Ad-
Blue System See DealerNOTE:
• The display may take up to five seconds to update after adding 2 gallons (7.5 Liters) or more of AdBlue
(UREA) to the AdBlue (UREA) tank. If you have a fault related to the AdBlue (UREA) system, the display
may not update to the new level. See an authorized dealer for service.
• AdBlue freezes at temperatures lower than 51.8°F (11°C). If the car stands for a long time at this tem-
perature, refilling could be difficult. For this reason, it is advised to park the vehicle in a garage and/or
heated environment, and wait for the AdBlue (UREA) to return to liquid state before topping up.
Gasoline Particulate Filter (GPF) System Messages — If Equipped:
Exhaust System Service Re-
quiredThe engine control unit has detected an issue with the gasoline particulate filter system. See an autho-
rized dealer.
Exhaust System Regeneration in
Process Continue DrivingThe regeneration procedure is controlled automatically by the engine control unit according to the filter
conditions and car use conditions. The following may occur during regeneration: increased levels of noise
vibration and harshness (NVH) and reduced engine performance. The driver should continue driving nor-
mally. This message will continue to appear until regeneration is complete.
Exhaust System Regeneration
CompleteThe exhaust gas filter regeneration has been completed. This message will briefly appear.
WARNING LIGHTS AND
MESSAGES
The warning/indicator lights will illuminate in
the instrument panel together with a dedi-
cated message and/or acoustic signal when
applicable. These indications are indicative
and precautionary and as such must not be
considered as exhaustive and/or alternativeto the information contained in the Owner’s
Manual, which you are advised to read care-
fully in all cases. Always refer to the informa-
tion in this chapter in the event of a failure
indication. All active telltales will display first
if applicable. The system check menu may
appear different based upon equipment op-
tions and current vehicle status. Some tell-
tales are optional and may not appear.
Red Warning Lights
— Air Bag Warning Light
This warning light will illuminate to indicate
a fault with the air bag, and will turn on for
four to eight seconds as a bulb check when
the ignition is placed in the ON/RUN or
ACC/ON/RUN position. This light will illumi-
nate with a single chime when a fault with the
GETTING TO KNOW YOUR INSTRUMENT PANEL
66

— Rear Seat Belt Fastened Indicator
Light — If Equipped
This light indicates when a rear seat belt has
been buckled in the second row. A telltale
will display in the upper right corner of the
instrument cluster display to correspond to
the specific seating position once the seat
belt has been buckled.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Stop/Start Active Indicator Light —
If Equipped
This indicator light will illuminate when the
Stop/Start function is in “Autostop” mode.
— Turn Signal Indicator Lights
When the left or right turn signal is activated,
the turn signal indicator will flash indepen-
dently and the corresponding exterior turn
signal lamps will flash. Turn signals can be
activated when the multifunction lever is
moved down (left) or up (right).NOTE:
• A continuous chime will sound if the ve-
hicle 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.
White Indicator Lights
2H— Two Wheel Drive High Indicator
Light — If Equipped With a Premium Cluster
This light alerts the driver that the vehicle is
in the two wheel drive high mode.
— Active Speed Limiter Ready Indica-
tor Light — If Equipped With A Premium
Instrument Cluster
This light will illuminate when the Active
Speed Limiter has been turned on, but not
set.
— Active Speed Limiter SET Indicator
Light — If Equipped With A Base Instrument
Cluster
This light will turn on when the Active Speed
Limiter is on and set to a specific speed.
— Hill Descent Control (HDC) Indicator
Light — If Equipped
This indicator shows when the Hill Descent
Control (HDC) feature is turned on. The lamp
will be on solid when HDC is armed. HDC can
only be armed when the transfer case is in the
“4WD LOW” position and the vehicle speed
is less then 30 mph (48 km/h). If these
conditions are not met while attempting to
use the HDC feature, the HDC indicator light
will flash on/off.
— Rear Seat Belt Fastened Indicator
Light — If Equipped
This light indicates when a rear seat belt has
been buckled in the second row. A telltale
will display in the upper right corner of the
instrument cluster display to correspond to
the specific seating position once the seat
belt has been buckled.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
GETTING TO KNOW YOUR INSTRUMENT PANEL
76

HAZARD WARNING
FLASHERS
The Hazard Warning flasher switch is located
on the instrument panel below the climate
controls.
Push the switch to turn on the
Hazard Warning flasher. When the
switch is activated, all directionalturn signals will flash on and off to warn
oncoming traffic of an emergency. Push the
switch a second time to turn off the Hazard
Warning flashers.
This is an emergency warning system and it
should not be used when the vehicle is in
motion. Use it when your vehicle is disabled
and it is creating a safety hazard for other
motorists.When you must leave the vehicle to seek
assistance, the Hazard Warning flashers will
continue to operate even though the ignition
is placed in the OFF position.
NOTE:
With extended use the Hazard Warning flash-
ers may wear down your battery.
BULB REPLACEMENT
Replacement Bulbs
Interior Bulbs
Bulb Number
Automatic Transmission Indicator Lamp 658
Heater Control Lamps (2)194
Rocker Switch Indicator Lamp (Rear Window Defogger, and Rear Wash/
Wipe)**
Soundbar Dome Lamp912
** Bulbs only available from an authorized dealer.
IN CASE OF EMERGENCY
176

Exterior Bulbs
Bulb Number
Headlamps (2)H4
Premium Head Lamps LED – (Serviced At Authorized Dealer)
Sport Front Park/Turn Signal Lamps (2) 7442NALL
Premium Front Park/Turn Signal Lamps (2) LED – (Serviced At Authorized Dealer)
Base (Sahara/Rubicon) Turn Lamp 7440NA
Base (Sahara/Rubicon) Park DRL Lamp 7443
Front Side Marker Lamps (2) LED – (Serviced At Authorized Dealer)
Base Fog LampsPSX24W
Premium Fog Lamps LED – (Serviced At Authorized Dealer)
Rear Premium LED Tail Lamps LED – (Serviced At Authorized Dealer)
Rear Base Tail Lamp Stop/Tail Bulb P27/7WK
Rear Base Tail Lamp Turn Signal Bulb WY21W
Rear Base Tail Lamp Backup Bulb W16W
Rear Base Tail Lamp Side Marker LED – (Serviced At Authorized Dealer)
Center High-Mounted Stop Lamp LED – (Serviced At Authorized Dealer)
License LampW5W
Rear FogW21W
NOTE:
Numbers refer to commercial bulb types that can be purchased from an authorized dealer.
If a bulb needs to be replaced, visit an authorized dealer or refer to the applicable Service Manual.
177

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.
Halogen Headlamps
NOTE:
We advise referring to an authorized dealer
for service.
1. Open hood and support using prop rod.
2. Remove the front grille. Turn the retainers
along the top 1/4 turn counterclockwise
and remove.
3. Pull the bottom of the grille away starting
at one side and working toward the other.
4. Remove the three screws holding the
headlamp to the vehicle.
5. Remove lamp from the vehicle.
6. Remove the lamp from the collar.7. Grasp the bulb and turn 1/4 turn
counterclockwise.
8. Pull the bulb from the housing.
9. Push connector locking tab to the unlock
position.
10. Remove connector from bulb.
11. Push connector onto new bulb base, and
push the connector locking tab to the
lock position.CAUTION!
Do not touch the new bulb with your fin-
gers. Oil contamination will severely
shorten bulb life. If the bulb comes in
contact with any oily surface, clean the
bulb with rubbing alcohol.
12. Reinstall bulb housing. Rotate the bulb
1/4 turn clockwise.
Front Park/Turn Signal
NOTE:
We advise referring to an authorized dealer
for service.1. Remove the front wheel liner fasteners to
access bulb sockets.
2. Turn the socket assembly 1/4 turn coun-
terclockwise and remove from housing.
Pull the bulb straight from the socket to
replace.
LED Front Side Marker
Please see an authorized dealer for service.
Wheel Liner
IN CASE OF EMERGENCY
178

Halogen Front Fog Lamp
NOTE:
We advise referring to an authorized dealer
for service.
1. Reach under the vehicle to access the
back of the front fog lamp.
2.
Disconnect the wire harness connector from
the front fog lamp connector receptacle.
3. Firmly grasp the bulb by the two latch
features and squeeze them together to
unlock the bulb from the back of the front
fog lamp housing.
4. Pull the bulb straight out from the keyed
opening in the housing and then connect
the replacement bulb.
CAUTION!
Do not touch the new bulb with your fin-
gers. Oil contamination will severely
shorten bulb life. If the bulb comes in
contact with any oily surface, clean the
bulb with rubbing alcohol.LED Front Fog Lamp
Please see an authorized dealer for service.
Rear Tail, Stop, Turn Signal, And Backup
Lamp
1.Remove interior trim panel cap to access
single retaining screw for tail lamp
assembly.
2. Remove retaining screw and disconnect
electrical connector, then remove tail
lamp assembly from the vehicle.
NOTE:
If necessary, push in on the assembly tab
located inboard behind the lamp housing.
Trim Cap
Retaining Screw
179

Jump Starting..............196
Oil..................257, 259
Oil Filler Cap...............217
Oil Selection...............257
Overheating...............199
Starting..................142
Enhanced Accident Response
Feature...............119, 205
Exhaust Gas Cautions...........137
Exhaust System...............137
Exterior Lights.............35, 139
Fabric Care..................240
Fabric Top..................240
Filters
Air Conditioning..............45
Engine Oil................259
Flashers
Hazard Warning.............176
Turn Signal............178, 179
Turn Signals.............76, 139
Flash-To-Pass.................36
Fluid, Brake.................261
Fluid Capacities...............257
Fluid Leaks..................139
Fluid Level Checks
Brake...................224Engine Oil................220
Fluids And Lubricants...........259
Fog Lights.............36, 74, 179
Fog Light Service..............179
Fold And Tumble Rear Seat.........29
Fold-Flat Seats................26
Folding Rear Seats..............28
Four-Way Hazard Flasher..........176
Four Wheel Drive..............150
Operation.................150
Shifting..................150
Systems..................150
Four Wheel Drive Operation
. . . .150, 153
Freedom Panels................51
Freeing A Stuck Vehicle..........201
Fuel......................252
Adding..................166
Additives.................253
Consumption...............262
Filler Cap (Gas Cap).......166, 167
Gasoline.................252
Materials Added.............253
Octane Rating...........252, 259
Requirements..............257
Specifications..............259
Tank Capacity..............257
Fueling....................166Fuses.....................180
Gas Cap (Fuel Filler Cap)......166, 167
Gasoline (Fuel)................252
Gasoline Particulate Filter (GPF)......60
General Information.............288
Glass Cleaning................243
Hard Top....................51
Hazard Warning Flasher..........176
Headlights
Automatic.................36
Bulb Replacement...........178
Cleaning.................239
High Beam/Low Beam Select Switch .35
Leveling...................37
Lights On Reminder...........37
Passing...................36
Replacing.................178
Head Restraints................30
Heated Mirrors.................35
High Beam/Low Beam Select (Dimmer)
Switch....................35
Hill Descent Control.............89
Hill Descent Control Indicator.......89
Hill Start Assist................84
Hood Prop...................56
337