2020 JEEP WRANGLER UNLIMITED light

GETTING TO KNOW YOUR INSTRUMENT PANEL
68
— Swing Gate Open Warning Light
This warning light will illuminate when the
swing gate is open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Transmission Temperature Warning
Light — If Equipped
This warning light will illuminate to warn of
a high transmission fluid temperature. This
may occur with strenuous usage such as
trailer towing. If this light turns on, stop the
vehicle and shift the transmission into Park
and allow the vehicle to sit idle (propulsion
system active), until the light turns off. Once
the light turns off, you may continue to drive
normally.
— Vehicle Security Warning Light — If
Equipped
This light will flash at a fast rate for approxi -
mately 15 seconds when the vehicle security
alarm is arming, and then will flash slowly
until the vehicle is disarmed.
Yellow Warning Lights
— Anti-Lock Brake (ABS) Warning Light
This warning light monitors the Anti-Lock
Brake System (ABS). The light will turn on
when the ignition is placed in the ON/RUN or
ACC/ON/RUN position and may stay on for as
long as four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the
brake system is not functioning and service
is required as soon as possible. However, the conventional brake system will continue to
operate normally, assuming the Brake
Warning Light is not also on.
If the ABS light does not turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, have the brake system
inspected by an authorized dealer.
— Electronic Stability Control (ESC)
Active Warning Light — If Equipped
This warning light will indicate when the
Electronic Stability Control system is Active.
The “ESC Indicator Light” in the instrument
cluster will come on when the ignition is
placed in the ON/RUN or ACC/ON/RUN posi -
tion, and when ESC is activated. It should go
out with the engine running. If the “ESC
Indicator Light” comes on continuously with
the engine running, a malfunction has been
detected in the ESC system. If this warning
light remains on after several ignition cycles,
and the vehicle has been driven several miles
(kilometers) at speeds greater than 30 mph
(48 km/h), see an authorized dealer as soon
as possible to have the problem diagnosed
and corrected.
WARNING!
If you continue operating the vehicle when
the Transmission Temperature Warning
Light is illuminated you could cause the
fluid to boil over, come in contact with hot
engine or exhaust components and cause a
fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated
will eventually cause severe transmission
damage or transmission failure.
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69
The “ESC OFF Indicator Light” and the
“ESC Indicator Light” come on momen-
tarily each time the ignition is placed in
the ON/RUN or ACC/ON/RUN position.
The ESC system will make buzzing or
clicking sounds when it is active. This is
normal; the sounds will stop when ESC
becomes inactive.
This light will come on when the vehicle is
in an ESC event.
— Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the Electronic
Stability Control (ESC) is off.
Each time the ignition is turned to ON/RUN
or ACC/ON/RUN, the ESC system will be on,
even if it was turned off previously.
— Loose Fuel Filler Cap Warning Light —
If Equipped
This warning light will illuminate when the
fuel filler cap is loose. Properly close the
filler cap to disengage the light. If the light
does not turn off, please see an authorized
dealer.
— Low Fuel Warning Light
When the fuel level reaches approximately
2.0 gal (7.5 L), this light will turn on and a
chime will sound. The light will remain on
until fuel is added.
— Low Washer Fluid Warning Light — If
Equipped
This warning light will illuminate when the
windshield washer fluid is low.
— Engine Check/Malfunction Indicator
Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diag -
nostic System called OBD II that monitors
engine and automatic transmission control
systems. This warning light will illuminate
when the ignition is in the ON/RUN position
before engine start. If the bulb does not
come on when turning the ignition switch
from OFF to ON/RUN, have the condition
checked promptly. Certain conditions, such as a loose or
missing gas cap, poor quality fuel, etc., may
illuminate the light after engine start. The
vehicle should be serviced if the light stays
on through several typical driving styles. In
most situations, the vehicle will drive
normally and will not require towing.
When the engine is running, the MIL may
flash to alert serious conditions that could
lead to immediate loss of power or severe
catalytic converter damage. The vehicle
should be serviced by an authorized dealer
as soon as possible if this occurs. WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you
drive slowly or park over flammable
substances such as dry plants, wood,
cardboard, etc. This could result in death
or serious injury to the driver, occupants or
others.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
70
— AdBlue® Injection System Failure
Warning Light — If Equipped
This warning light will illuminate along with
a dedicated message on the display (If
Equipped) if an unknown fluid not
conforming with acceptable characteristics
is inserted, or if an average consumption of
AdBlue® over 50% is detected. Contact an
authorized dealer as soon as possible.
If the problem is not solved, a specific
message will appear on the Instrument
Cluster Display whenever a certain threshold
is reached until it will no longer be possible
to start the engine. When about 125 miles (200 km) are
remaining before the AdBlue® tank is
empty, a continuous dedicated message will
appear on the instrument panel, accompa
-
nied by a buzzer sound (If Equipped).
— Service 4WD Warning Light — If
Equipped

This warning light will illuminate to signal a
fault with the 4WD system. If the light stays on
or comes on during driving, it means that the
4WD system is not functioning properly and
that service is required. It is recommended you
drive to the nearest service center and have the
vehicle serviced immediately.

— Service Forward Collision Warning
(FCW) Light — If Equipped
This warning light will illuminate to indicate
a fault in the Forward Collision Warning
System. Contact an authorized dealer for
service.
Refer to "Forward Collision Warning (FCW)"
in "Safety" for further information.
— Service Stop/Start System Warning
Light — If Equipped
This warning light will illuminate when the
Stop/Start system is not functioning properly
and service is required. Contact an autho -
rized dealer for service.
— Speed Control Fault Warning Light
This warning light will illuminate to indicate
the Speed Control System is not functioning
properly and service is required. Contact an
authorized dealer.
— Sway Bar Fault Warning Light
This light will illuminate when there is a fault
in the sway bar disconnect system.
— Tire Pressure Monitoring System
(TPMS) Warning Light
The warning light switches on and a message
is displayed to indicate that the tire pressure
is lower than the recommended value and/or
that slow pressure loss is occurring. In these
cases, optimal tire duration and fuel
consumption may not be guaranteed.
CAUTION!
Prolonged driving with the Malfunction
Indicator Light (MIL) on could cause
damage to the vehicle control system. It
also could affect fuel economy and
driveability. If the MIL is flashing, severe
catalytic converter damage and power loss
will soon occur. Immediate service is
required.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
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Yellow Indicator Lights/ — 4WD Indicator Light — If Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive mode, and the front
and rear driveshafts are mechanically locked
together forcing the front and rear wheels to
rotate at the same speed.
/ — 4WD Low Indicator Light — If
Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive LOW mode. The front
and rear driveshafts are mechanically locked
together forcing the front and rear wheels to
rotate at the same speed. Low range provides
a greater gear reduction ratio to provide
increased torque at the wheels.
/ — 4WD Part Time Indicator Light —
If Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive part time mode, and
the front and rear driveshafts are mechani -
cally locked together forcing the front and
rear wheels to rotate at the same speed.
— Active Speed Limiter Fault Indicator
Light — If Equipped
This warning light will illuminate to signal
when there is a fault detected with the Active
Speed Limiter.
— Axle Locker Fault Indicator Light
This light indicates when the front and/or
rear axle locker fault has been detected.
— Forward Collision Warning Off
Indicator Light — If Equipped
This indicator light illuminates to indicate
that Forward Collision Warning is off.
— Front And Rear Axle Lock Indicator
Light
This light indicates when the front, rear, or
both axles have been locked. The telltale will
display the lock icon on the front and rear
axles to indicate the current lock status.
/ — Neutral Indicator Light — If
Equipped
This light alerts the driver that the vehicle is
in the neutral mode.
— Rear Axle Lock Indicator Light
This light indicates when the rear axle lock
has been activated.
— Rear Fog Indicator — If Equipped
This indicator light will illuminate when the
rear fog lights are on.
— Service Adaptive Cruise Control
Warning Light — If Equipped
This light will turn on when a ACC is not
operating and needs service. Refer to “Adap -
tive Cruise Control (ACC)” in “Starting And
Operating” for further information.
— Sway Bar Indicator Light — If
Equipped
This indicator light will illuminate when the
front sway bar is disconnected.
— Wait To Start Light — If Equipped
This indicator light will illuminate for approx -
imately two seconds when the ignition is
turned to the RUN position. Its duration may
be longer based on colder operating condi -
tions. Vehicle will not initiate start until tell -
tale is no longer displayed.
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73
Refer to “Starting The Engine” in “Starting
And Operating” for further information.
NOTE:
The “Wait To Start” telltale may not illumi-
nate if the intake manifold temperature is
warm enough.
— Low Diesel Exhaust Emissions Additive
AdBlue® Indicator Light — If Equipped
The Low Diesel Exhaust Emissions Additive
AdBlue® indicator light illuminates when
the AdBlue® (UREA) level is low.
Fill the AdBlue® tank as soon as possible
with at least 1.3 gallons (5 liters) of
AdBlue®.
If filling the tank is done with a remaining
range of AdBlue® in the tank equal to zero,
you may need to wait two minutes before
starting the vehicle.
Refer to “Adding AdBlue®” in “Starting And
Operating” for further information.
— Water In Fuel Indicator Light — If
Equipped
The “Water In Fuel Indicator Light” will illu -
minate when there is water detected in the
fuel filter. If this light remains on, DO NOT start the vehicle before you drain the water
from the fuel filter to prevent engine
damage, and please see an authorized
dealer.
Green Indicator Lights
— Adaptive Cruise Control (ACC) Set With
No Target Detected Indicator Light — If
Equipped
This light will turn on when the Adaptive
Cruise Control is set and there is no target
vehicle detected. Refer to “Adaptive Cruise
Control (ACC) — If Equipped” in “Starting
And Operating” for further information.
— Adaptive Cruise Control (ACC) Set With
Target Light — If Equipped
This will display when the ACC is set and a
target vehicle is detected. Refer to “Adaptive
Cruise Control (ACC) — If Equipped” in
“Starting And Operating” for further informa -
tion.
— 4WD Auto Indicator Light — If
Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive auto mode. The
system will provide power to all four wheels
and shift the power between the front and
rear axles as needed. This will provide
maximum traction in dry and slippery condi -
tions.
— Active Speed Limiter SET Indicator
Light — If Equipped With A Premium
Instrument Cluster
This indicator light will illuminate when the
Active Speed Limiter is on and set to a
specific speed.
Refer to “Active Speed Limiter — If
Equipped” in “Starting And Operating” for
further information.
CAUTION!
The presence of water in the fuel system
circuit may cause severe damage to the
injection system and irregular engine
operation. If the indicator light is
illuminated, contact an authorized dealer
as soon as possible to bleed the system. If
the above indications come on
immediately after refuelling, water has
probably been poured into the tank: switch
the engine off immediately and contact an
authorized dealer.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
74
— Cruise Control SET Indicator Light — If
Equipped With A Premium Instrument Cluster

This indicator light will illuminate when the
speed control is set to the desired speed. Refer
to “Speed Control — If Equipped” in “Starting
And Operating” for further information.

— Front Fog Indicator Light — If Equipped
This indicator light will illuminate when the
front fog lights are on.
— Park/Headlight On Indicator Light
This indicator light will illuminate when the
park lights or headlights are turned on.
— 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 inde -
pendently 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
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.
White Indicator Lights
— Adaptive Cruise Control (ACC) Ready
Light — If Equipped
This light will turn on when the vehicle
equipped with Adaptive Cruise Control (ACC)
has been turned on, but not set. Refer to
“Adaptive Cruise Control (ACC) — If
Equipped” in “Starting And Operating” for
further information.
— 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 Indicator
Light — If Equipped With A Premium
Instrument Cluster

This light will illuminate when the Active Speed
Limiter has been turned on, but not set.

Refer to “Active Speed Limiter — If
Equipped” in “Starting And Operating” for
further information.
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75
— 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.
Refer to “Active Speed Limiter — If
Equipped” in “Starting And Operating” for
further information.
— 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.
— Rear Seat Belt Reminder Indicator
Light — If Equipped

This light indicates when a rear seat belt is
unbuckled in the second row. When the igni -
tion is first placed in the ON/RUN or ACC/ON/
RUN position, and if a seat belt in the second
row is unbuckled, a light corresponding to the
specific seat will turn on in the upper right
portion of the instrument cluster display,
momentarily replacing the configurable corner
information. If a second row seat belt that was
buckled at the start of the trip is unbuckled,
the Rear Seat Belt Reminder Light will change
from the buckled to the unbuckled symbol, and
a chime will sound.

Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Rear Seat Unoccupied Indicator Light
— If Equipped
This light indicates when the rear passenger
seats are unoccupied, and will illuminate in
the upper right portion of the instrument
cluster display, momentarily replacing the
configurable corner information.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Speed Warning Indicator Light — If
Equipped
When Set Speed Warning is turned on, the
speed warning telltale will illuminate in the
instrument cluster with a number matching
the set speed. When the set speed is
exceeded, the indication will light up yellow
and flash along with a continuous chime (up
to 10 seconds or until the speed is no longer
exceeded). Speed Warning can be turned on
and off in the instrument cluster display, for
further information refer to “Instrument
Cluster Display Menu Items” in “Getting To
Know Your Instrument Panel.”
The number “55” is only an example of a
speed that can be set.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
76
— Cruise Control Ready Indicator Light —
If Equipped With A Premium Instrument
Cluster
This light will turn on when the speed control
has been turned on, but not set. Refer to
“Speed Control — If Equipped” in “Starting
And Operating” for further information.
— Cruise Control SET Indicator Light — If
Equipped With Base Instrument Cluster
This indicator light will illuminate when the
speed control is set.
Refer to “Speed Control — If Equipped” in
“Starting And Operating” for further informa -
tion.
— Cruise Control Ready Indicator Light —
If Equipped With Base Instrument Cluster
This light will turn on when the speed control
has been turned on, but not set. Refer to
“Speed Control — If Equipped” in “Starting
And Operating” for further information.
— Active Speed Limiter Ready Indicator
Light — If Equipped With A Base Instrument
Cluster
This light will turn on when the Active Speed
Limiter is on, but not set.
Blue Indicator Lights
— High Beam Indicator Light
This indicator light will illuminate to indicate
that the high beam headlights are on. With
the low beams activated, push the multi -
function lever forward (toward the front of
the vehicle) to turn on the high beams. Pull
the multifunction lever rearward (toward the
rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the
lever toward you for a temporary high beam
on, “flash to pass” scenario.
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