service JEEP WRANGLER 4XE 2021 Owners Manual

The driver’s primary responsibility is the safe operation of the vehicle. Driving while distracted can result in loss of vehicle control,
resulting in an accident and personal injury. FCA US LLC strongly recommends that the driver use extreme caution when using any
device or feature that may take their attention off the road. Use of any electrical devices, such as cellular telephones, computers, portable
radios, vehicle navigation or other devices, by the driver while the vehicle is moving is dangerous and could lead to a serious accident.
Texting while driving is also dangerous and should never be done while the vehicle is moving. If you find yourself unable to devote your
full attention to vehicle operation, pull off the road to a safe location and stop your vehicle. Some states or provinces prohibit the use of
cellular telephones or texting while driving. It is always the driver’s responsibility to comply with all local laws.
This Owner’s Manual has been prepared to help you get acquainted with your new Jeep® brand vehicle and to provide a convenient
reference source for common questions.
Not all features shown in this manual may apply to your vehicle. For additional information, visit mopar.com/om (U.S.), owners.mopar.ca
(Canada) or your local Jeep® brand dealer.
Drunk driving is one of the most frequent causes of accidents. Your driving ability can be seriously
impaired with blood alcohol levels far below the legal minimum. If you are drinking, don’t drive.
Ride with a designated non-drinking driver, call a cab, a friend or use public transportation.
DRIVING AND ALCOHOL
Driving after drinking can lead to an accident. Your perceptions are less sharp, your reflexes are
slower and your judgment is impaired when you have been drinking. Never drink and then drive.
WARNING!
WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway
motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide,
phthalates, and lead, which are known to the State of California to cause cancer and birth
defects or other reproductive harm. To minimize exposure, avoid breathing exhaust,
do not idle the engine except as necessary, service your vehicle in a well-ventilated area
and wear gloves or wash your hands frequently when servicing your vehicle. For more
information go to www.P65Warnings.ca.gov/passenger-vehicle.
This Owner’s Manual illustrates and describes the operation of features and equipment that are either standard or optional on this
vehicle. This manual may also include a description of features and equipment that are no longer available or were not ordered on
this vehicle. Please disregard any features and equipment described in this manual that are not on this vehicle. FCA US LLC reserves the
right to make changes in design and specifications, and/or make additions to or improvements to its products without imposing any
obligation upon itself to install them on products previously manufactured.
With respect to any vehicles sold in Canada, the name FCA US LLC shall be deemed to be deleted and the name FCA Canada Inc.
used in substitution therefore.
This Owner’s Manual is intended to familiarize you with the important features of your vehicle. Your most up-to-date Owner’s Manual,
Navigation/Uconnect manuals and Warranty Booklet can be found by visiting the website on the back cover.
U.S Residents: If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the Warranty
Booklet by calling 1-877-426-5337 or by contacting your dealer. Replacement kits can be purchased by visiting www.techauthority.com.
Canadian Residents: If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the
Warranty Booklet or purchase a replacement kit by calling 1-800-387-1143 or by contacting your dealer.

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Low Washer Fluid Warning Light Úpage 138
Engine Check/Malfunction Indicator Warning Light (MILyf Úpage 138
AdBlue® (UREAyf,QMHFWLRQ6\VWHP)DLOXUH:DUQLQJ/LJKt Úpage 139
Service 4WD Warning Light Úpage 139
Service Forward Collision Warning (FCWyf/LJKt Úpage 139
Service Stop/Start System Warning Light Úpage 139
Cruise Control Fault Warning Light Úpage 139
Yellow Warning Lights

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Neutral Indicator Light Úpage 141
Rear Axle Lock Indicator Light Úpage 141
Service Adaptive Cruise Control Warning Light Úpage 141
Sway Bar Indicator Light Úpage 141
Wait To Start Light Úpage 141
Low Diesel Emissions Additive AdBlue® (UREAyf,QGLFDWRU/LJKt Úpage 142
Water In Fuel Indicator Light Úpage 142
Yellow Indicator Lights
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CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge
reads “H” pull over and stop the vehicle. Idle the
vehicle with the air conditioner turned off until
the pointer drops back into the normal range. If
the pointer remains on the “H”, turn the engine
off immediately and call an authorized dealer for
service.

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Prolonged driving with the MIL on could cause
further damage to the emission control
system. It could also affect fuel economy and
driveability. The vehicle must be serviced
before any emissions tests can be performed.
If the MIL is flashing while the vehicle is
running, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.
WARNING!
ONLY an authorized service technician should
connect equipment to the OBD II connection
port in order to read the VIN, diagnose, or
service your vehicle.
If unauthorized equipment is connected to the
OBD II connection port, such as a
driver-behavior tracking device, it may:
Be possible that vehicle systems,
including safety related systems, could be
impaired or a loss of vehicle control could
occur that may result in an accident
involving serious injury or death.
Access, or allow others to access, infor-
mation stored in your vehicle systems,
including personal information.

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The seat belt assembly must be replaced if the
switchable Automatic Locking Retractor (ALRyf
feature or any other seat belt function is not
working properly when checked according to
the procedures in the Service Manual.
Failure to replace the seat belt assembly
could increase the risk of injury in collisions.
Do not use the Automatic Locking Mode to
restrain occupants who are wearing the seat
belt or children who are using booster seats.
The locked mode is only used to install
rear-facing or forward-facing child restraints
that have a harness for restraining the child.

WARNING!
Ignoring the Air Bag Warning Light in your
instrument panel could mean you won’t have the
air bag system to protect you in a collision. If the
light does not come on as a bulb check when the
ignition is first turned on, stays on after you start
the vehicle, or if it comes on as you drive, have
an authorized dealer service the air bag system
immediately.
1 — Driver And Passenger Front Air Bags
2 — Driver And Passenger Knee Impact Bolsters
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If the PAD Indicator Light remains illuminated
for an adult passenger, have an authorized
dealer service the air bag system immediately.
Failure to do so may cause serious injury or
death. If the PAD Indicator Light is illuminated
with the words "PASSENGER AIR BAG OFF,"
the Passenger Advanced Front Air Bag will not
deploy in the event of a collision.
Never place a rear-facing child restraint in
front of an air bag. A deploying passenger
front air bag can cause death or serious injury
to a child 12 years or younger, including a
child in a rear-facing child restraint.

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Ignoring the Air Bag Warning Light in your
instrument panel could mean you won’t have
the air bags to protect you in a collision. If the
light does not come on as a bulb check when
the ignition is first turned on, stays on after
you start the vehicle, or if it comes on as you
drive, have an authorized dealer service the
air bag system immediately.
Placing an object on the floor under the front
passenger seat may prevent the OCS from
working properly, which may result in serious
injury or death in a collision. Do not place any
objects on the floor under the front passenger
seat.
WARNING!
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Unapproved modifications or service proce-
dures to the passenger seat assembly, its
related components, seat cover, or cushion
may inadvertently change the air bag deploy-
ment in case of a frontal collision. This could
result in death or serious injury to the front
passenger if the vehicle is involved in a colli -
sion. A modified vehicle may not comply with
required Federal Motor Vehicle Safety Stan -
dards (FMVSSyfDQGRU&DQDGLDQ0RWRU
Vehicle Safety Standards (CMVSSyf.
If it is necessary to modify the air bag system
for persons with disabilities, contact an autho -
rized dealer.
WARNING!
Do not drill, cut, or tamper with the knee
impact bolsters in any way.
Do not mount any accessories to the knee
impact bolsters such as alarm lights, stereos,
citizen band radios, etc.
WARNING!
Do not use accessory seat covers or place
objects between you and the Side Air Bags; the
performance could be adversely affected and/or
objects could be pushed into you, causing
serious injury.