2021 JEEP WRANGLER 4XE engine
[x] Cancel search: enginePage 403 of 476
: $ 5 1 , 1 *
You or others can be badly burned by hot
engine coolant (antifreezeyf R U V W H D P I U R P \ R X U
radiator. If you see or hear steam coming from
under the hood, do not open the hood until the
radiator has had time to cool. Never open a
cooling system pressure cap when the radi-
ator or coolant bottle is hot.
Keep hands, tools, clothing, and jewelry away
from the radiator cooling fan when the hood is
raised. The fan starts automatically and may
start at any time, whether the engine is
running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the igni -
tion to the OFF mode. The fan is temperature
controlled and can start at any time the igni -
tion is in the ON mode.
8
21_JL_OM_EN_USC_t.book Page 401
Page 405 of 476
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Do not open hot engine cooling system. Never
add engine coolant (antifreezeyf Z K H Q W K H
engine is overheated. Do not loosen or
remove the cap to cool an overheated engine.
Heat causes pressure to build up in the
cooling system. To prevent scalding or injury,
do not remove the pressure cap while the
system is hot or under pressure.
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.
8
21_JL_OM_EN_USC_t.book Page 403
Page 406 of 476
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Do not open hot engine cooling system. Never
add engine coolant (antifreezeyf Z K H Q W K H
engine is overheated. Do not loosen or
remove the cap to cool an overheated engine.
Heat causes pressure to build up in the
cooling system. To prevent scalding or injury,
do not remove the pressure cap while the
system is hot or under pressure.
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.
Page 407 of 476
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5 L G L Q J W K H E U D N H V F D Q O H D G W R E U D N H I D L O X U H D Q G
S R V V L E O \ D F R O O L V L R Q ' U L Y L Q J Z L W K \ R X U I R R W U H V W L Q J
R U U L G L Q J R Q W K H E U D N H S H G D O F D Q U H V X O W L Q
D E Q R U P D O O \ K L J K E U D N H W H P S H U D W X U H V H [ F H V V L Y H
O L Q L Q J Z H D U D Q G S R V V L E O H E U D N H G D P D J H < R X
Z R X O G Q R W K D Y H \ R X U I X O O E U D N L Q J F D S D F L W \ L Q D Q
H P H U J H Q F \
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Use only the manufacturer recommended
brake fluid Úpage 456. Using the wrong type
of brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.
To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep
the master cylinder reservoir cap secured at
all times. Brake fluid in a open container
absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This
could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
WARNING!
8
21_JL_OM_EN_USC_t.book Page 405
Page 409 of 476
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8 V L Q J D W U D Q V P L V V L R Q I O X L G R W K H U W K D Q W K H
P D Q X I D F W X U H U U H F R P P H Q G H G I O X L G P D \ F D X V H
G H W H U L R U D W L R Q L Q W U D Q V P L V V L R Q V K L I W T X D O L W \ D Q G R U
W R U T X H F R Q Y H U W H U V K X G G H U Úpage 456.
WARNING!
When replacing a blown fuse, always use an
appropriate replacement fuse with the same
amp rating as the original fuse. Never replace
a fuse with another fuse of higher amp rating.
Never replace a blown fuse with metal wires or
any other material. Failure to use proper fuses
may result in serious personal injury, fire and/
or property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
If the replaced fuse blows again, contact an
authorized dealer.
If a general protection fuse for safety systems
(air bag system, braking systemyf S R Z H U X Q L W
systems (engine system, gearbox systemyf R U
steering system blows, contact an authorized
dealer.8
21_JL_OM_EN_USC_t.book Page 407
Page 456 of 476
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Mixing of engine coolant (antifreezeyf R W K H U W K D Q V S H F L I L H G 2 U J D Q L F $ G G L W L Y H 7 H F K Q R O R J \ 2 $ 7 \f engine coolant (antifreezeyf P D \ U H V X O W L Q H Q J L Q H G D P D J H D Q G
may decrease corrosion protection. Organic Additive Technology (OATyf H Q J L Q H F R R O D Q W L V G L I I H U H Q W D Q G V K R X O G Q R W E H P L [ H G Z L W K + \ E U L G 2 U J D Q L F $ G G L W L Y H 7 H F h-
nology (HOATyf H Q J L Q H F R R O D Q W D Q W L I U H H ] H \f or any “globally compatible” coolant (antifreezeyf , I D Q R Q 2 $ 7 H Q J L Q H F R R O D Q W D Q W L I U H H ] H \f is introduced into the
cooling system in an emergency, the cooling system will need to be drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032yf E \ D Q
authorized dealer as soon as possible.
Do not use water alone or alcohol-based engine coolant (antifreezeyf S U R G X F W V ' R Q R W X V H D G G L W L R Q D O U X V W L Q K L E L W R U V R U D Q W L U X V W S U R G X F W V D V W K H \ P D \ Q R W E H
compatible with the radiator engine coolant and may plug the radiator.
This vehicle has not been designed for use with propylene glycol-based engine coolant (antifreezeyf 8 V H R I S U R S \ O H Q H J O \ F R O E D V H G H Q J L Q H F R R O D Q W D Q W i -
freezeyf L V Q R W U H F R P P H Q G H G .
Page 475 of 476
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.