engine JEEP WRANGLER 2021 Owner handbook (in English)

4. Remove the key from the ignition switch
lock cylinder.
WARNING!
• Before exiting a vehicle, always shift the
automatic transmission into PARK or the
manual transmission into FIRST gear or
REVERSE, apply the parking brake, then
turn the engine OFF, remove the key fob
from the vehicle and lock your vehicle.
WARNING!
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
• Allowing children to be in a vehicle un-
attended is dangerous for a number of
reasons. A child or others could be seri-
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the gear selector.
• Do not leave the key fob in or near the
vehicle, or in a location accessible to
children. A child could operate power
windows, other controls, or move the
vehicle.
• Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury
or death.
CAUTION!
An unlocked vehicle is an invitation for
thieves. Always remove key fob from the
vehicle and lock all doors when leaving the
vehicle unattended.
REMOTE STARTING
SYSTEM — IF EQUIPPED
This system uses the key fob to start the
engine conveniently from outside the vehicle
while still maintaining security. The system
has a range of approximately 300 ft (91 m).
NOTE:
• The vehicle must be equipped with an
automatic transmission to be equipped
with Remote Start.
• Obstructions between the vehicle and key
fob may reduce this range.
How To Use Remote Start
All of the following conditions must be met
before the engine will remote start:
• Gear selector in PARK
• Doors closed
• Hood closed
• Hazard switch off
• Brake switch inactive (brake pedal not
pushed)Ignition Switch
GETTING TO KNOW YOUR VEHICLE
14

• Ignition key removed from ignition
• Battery at an acceptable charge level
• System not disabled from previous remote
start event
• Vehicle security alarm not active
WARNING!
• Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monox-
ide is poisonous and can cause serious
injury or death when inhaled.
• Keep key fobs away from children. Op-
eration of the Remote Start System, win-
dows, door locks or other controls could
cause serious injury or death.
Remote Start Abort Message
The following messages will display in the
instrument cluster display if the vehicle fails to
remote start or exits remote start prematurely:
• Remote Start Aborted — Door Open
• Remote Start Aborted — Hood Open
• Remote Start Aborted — Fuel Low
• Remote Start Aborted — Swing Gate Open
• Remote Start Aborted — System Fault
The instrument cluster display message stays
active until the ignition is turned to the ON/
RUN position.
To Enter Remote Start
Push and release the remote start button on
the key fob twice within five seconds. The
vehicle doors will lock, the parking lights will
flash and the horn will chirp twice (if pro-
grammed). Then, the engine will start and the
vehicle will remain in the remote start mode
for a 15-minute cycle.NOTE:
• The park lamps will turn on and remain on
during remote start mode.
• For security, power window operation is
disabled when the vehicle is in the remote
start mode.
• The engine can be started two consecutive
times (two 15-minute cycles) with the key
fob. However, the ignition switch must be
cycled to the ON/RUN position before you
can repeat the start sequence for a third
cycle.
Remote start will also cancel if any of the
following occur:
• The engine stalls or RPM exceeds 2500.
• Any engine warning lamps come on.
• The hood is opened.
• The hazard switch is pushed.
• The transmission is moved out of PARK.
• The brake pedal is pushed.
15

To Exit Remote Start Mode Without
Driving The Vehicle
Push and release the remote start button one
time or allow the engine to run for the entire
15-minute cycle.
NOTE:
To avoid unintentional shut downs, the sys-
tem will disable the one time push of the
remote start button for two seconds after
receiving a valid remote start request.
To Exit Remote Start Mode And Drive The
Vehicle
Before the end of the 15-minute cycle, push
and release the unlock button on the key fob
to unlock the doors and disarm the vehicle
security alarm (if equipped). Then, insert the
key into the ignition and place the ignition in
the ON/RUN position.
NOTE:
The ignition must be placed in the ON/RUN
position in order to drive the vehicle.
SENTRY KEY
The Sentry Key Immobilizer System prevents
unauthorized vehicle operation by disabling
the engine. The system does not need to be
armed or activated. Operation is automatic,
regardless of whether the vehicle is locked or
unlocked.
The system uses key fobs that have an em-
bedded electronic chip (transponder) to pre-
vent unauthorized vehicle operation. There-
fore, only key fobs that are programmed to
the vehicle can be used to start and operate
the vehicle. The system will shut the engine
off in two seconds if someone uses an invalid
key to try to start the engine.
NOTE:
A key fob that has not been programmed is
also considered an invalid key, even if it is cut
to fit the ignition or lock cylinder for that
vehicle.
During normal operation, after placing the
ignition in the on position, the vehicle secu-
rity light will turn on for three seconds for abulb check. If the light remains on after the
bulb check, it indicates that there is a prob-
lem with the electronics. In addition, if the
vehicle security light begins to flash after the
bulb check, it indicates that someone used
an invalid key to try to start the engine. Either
of these conditions will result in the engine
being shut off after two seconds.
If the vehicle security light turns on during
normal vehicle operation (vehicle running for
longer than ten seconds), it indicates that
there is a fault in the electronics. Should this
occur, have the vehicle serviced as soon as
possible by an authorized dealer.
CAUTION!
The Sentry Key Immobilizer system is not
compatible with some aftermarket remote
starting systems. Use of these systems
may result in vehicle starting problems
and loss of security protection.
All of the key fobs provided with your new
vehicle have been programmed to the vehicle
electronics.GETTING TO KNOW YOUR VEHICLE
16

Daytime Running Lights — If Equipped
The headlights come on at a low intensity level
when shifted into any position other than PARK
(auto transmission) or when the vehicle begins
to move (manual transmission).
NOTE:
The Daytime Running Light, on the same side
of the vehicle as the active turn signal, will
turn off automatically when a turn signal is in
operation and turn on again when the turn
signal is not operating.
High/Low Beam Switch
Push the multifunction lever toward the in-
strument panel to switch the headlights to
high beams. Pulling the multifunction lever
back toward the steering wheel will return the
lights to low beams.
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, turn the end of
the multifunction lever to the AUTO position
(third detent). 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 turn the ignition switch
to the LOCK position. To turn the Automatic
System off, turn the end of the multifunction
lever out of the AUTO position.
NOTE:
The engine must be running before the head-
lights will turn on in the Automatic mode.
Front Fog Lights
The front fog light switch is located on the
multifunction lever. To activate the front fog
lights, turn on the parking or low beam head-
lights and pull out the end of the lever.NOTE:
The fog lights will only operate with the park-
ing lights or the headlights on low beam.
Selecting high beam headlights will turn off
the fog lights.
Rear Fog Lights — If Equipped
The rear fog lights may be operated, as de-
sired, when visibility is poor due to fog. To
activate the rear fog lights, turn on the low
beam, high beam, or front fog lamps, pull out
the end of the multifunction lever and rotate
the lever to the last detent.
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.
29

lever. For information on using the rear win-
dow wiper/washer, refer to “Rear Window
Wiper/Washer” in this section for more infor-
mation.
Windshield Wiper Operation
Rotate the end of the lever upward to the
second detent past the intermittent settings
for low-speed wiper operation. Rotate the end
of the lever upward to the third detent past
the intermittent settings for high-speed wiper
operation.
CAUTION!
In cold weather, always turn off the wiper
switch and allow the wipers to return to the
park position before turning off the engine.
If the wiper switch is left on and the wipers
freeze to the windshield, damage to the
wiper motor may occur when the vehicle is
restarted.
Intermittent Wiper System
Use the intermittent wiper when weather con-
ditions make a single wiping cycle, with a
variable pause between cycles, desirable. Ro-
tate the end of the lever to the first detent
position for one of five intermittent settings.
The delay cycle can be set anywhere between
1 to 18 seconds.
NOTE:
The wiper delay times depend on vehicle
speed. If the vehicle is moving less than
10 mph (16 km/h), delay times will be
doubled.
Windshield Washers
To use the washer, pull the lever toward you
and hold while spray is desired. If the lever is
pulled while in the delay range, the wiper will
start and continue to operate for two or three
wipe cycles after the lever is released. Then,
the intermittent interval previously selected
will resume.
If the lever is pulled while in the off position,
the wipers will operate for two or three wipe
cycles. Then, the wipers will turn off.
WARNING!
Sudden loss of visibility through the wind-
shield could lead to a collision. You might
not see other vehicles or other obstacles.
To avoid sudden icing of the windshield
during freezing weather, warm the wind-
shield with the defroster before and during
windshield washer use.
Mist Feature
Push down on the wiper lever to activate a
single wipe to clear off road mist or spray
from a passing vehicle. As long as the lever is
held down, the wipers will continue to oper-
ate.
NOTE:
The mist feature does not activate the washer
pump; therefore, no washer fluid will be
sprayed on the windshield. The wash func-
tion must be used in order to spray the
windshield with washer fluid.
31

Automatic Temperature Control (ATC) —
If Equipped
Automatic Operation
1. Push the AUTO button on the faceplate on
the Automatic Temperature Control (ATC)
Panel.
2. Next, adjust the temperature you would
like the system to maintain by adjusting
the driver and passenger temperature
control buttons. Once the desired tem-
perature is displayed, the system will
achieve and automatically maintain that
comfort level.
3. When the system is set up for your comfort
level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system
to function automatically.
NOTE:
• It is not necessary to move the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentrationof coolant is used. Use of the Air Recircula-
tion mode during Winter months is not rec-
ommended, because it may cause window
fogging.
Vacation/Storage
Before 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 fresh air with the
blower setting on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
37

WARNING!
Driving with the flip-up window open can
allow poisonous exhaust gases into your
vehicle. You and your passengers could be
injured by these fumes. Keep the flip-up
window closed when you are operating the
vehicle.
CAUTION!
Do not push on rear wiper blade when
closing the rear flip-up window, as damage
to the blade will result.
INTERNAL EQUIPMENT
Power Outlets
There are three possible 12 Volt Power Out-
lets in this vehicle.
• The front 12 Volt power outlet is located
below the climate controls in the Center
Console, and is powered when the ignition
switch is in the ON/RUN position. The
outlet can operate a conventional cigar
lighter unit or power accessories designed
for use with a standard power outlet
adapter.• The center console 12 Volt power outlet is
powered directly from the battery (power
available at all times). Items plugged into
this outlet may discharge the battery and/or
prevent the engine from starting.
Power Outlet — Front
Power Outlet — Center Console
GETTING TO KNOW YOUR VEHICLE
52

• On vehicles equipped with a rear sub-
woofer, there is also a 12 Volt power outlet
located in the rear cargo area of the vehicle.
This power outlet has power available di-
rectly from the battery (power available at
all times). Items plugged into this outlet
also may discharge the battery and/or pre-
vent the engine from starting.NOTE:
• Do not exceed the maximum power of
160 Watts (13 Amps) at 12 Volts. If the
160 Watt (13 Amp) power rating is ex-
ceeded the fuse protecting the system will
need to be replaced.
• Power outlets are designed for accessory
plugs only. Do not insert any other object in
the power outlet as this will damage the
outlet and blow the fuse. Improper use of
the power outlet can cause damage not
covered by your new vehicle warranty.
Power Outlet — Rear Cargo Area
53

• Check Gascap (refer to “Refueling The Ve-
hicle” in “Starting And Operating” for fur-
ther information)
• Oil Change Required (with a single chime)
• ECO (Fuel Saver Indicator) — if equipped
Gear Shift Indicator (GSI) — If Equipped
The Gear Shift Indicator (GSI) system is en-
abled on vehicles with a manual transmis-
sion, or when a vehicle with an automatic
transmission is in manual shift mode. The
GSI provides the driver with a visual indica-
tion when the recommended gear shift point
has been reached. This indication notifies
the driver that changing gear will allow a
reduction in fuel consumption. When the up
shift indicator is shown on the display, the
GSI is advising the driver to engage a higher
gear. When the down shift indicator is shown
on the display, the GSI is advising the driver
to engage a lower gear.
The GSI indicator remains illuminated until
the driver changes gear, or the driving condi-
tions return to a situation where changing gear
is not required to improve fuel consumption.
Oil Change Required
Your vehicle is equipped with an engine oil
change indicator system. The “Oil Change
Required” message will display in the instru-
ment cluster display for approximately
10 seconds after a single chime has sounded
to indicate the next scheduled oil change
interval. The engine oil change indicator sys-
tem is duty cycle based, which means the
engine oil change interval may fluctuate de-
pendent upon your personal driving style.
Unless reset, this message will continue to
display each time you turn the ignition switch
to the ON position. To turn off the message
temporarily, push and release theMENUbut-
ton. To reset the oil change indicator system
(after performing the scheduled mainte-
nance), perform the following procedure:
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 indicativeand precautionary and as such must not be
considered as exhaustive and/or alternative
to 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 light indicates 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 illuminate with a single chime when a
fault with the air bag has been detected, it
will stay on until the fault is cleared. If the
light is either not on during startup, stays on,
or turns on while driving, have the system
inspected at an authorized dealer as soon as
possible.
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58

— Battery Charge Warning Light
This light illuminates when the battery is not
charging properly. If it stays on while the
engine is running, there may be a malfunc-
tion with the charging system. Contact your
authorized dealer as soon as possible.
This indicates a possible problem with the
electrical system or a related component.
— Coolant Temperature Warning Light
This light warns of an overheated engine
condition. If the light turns on while driving,
safely pull over and stop the vehicle. If the
A/C system is on, turn it off. Also, shift the
transmission into NEUTRAL and idle the ve-
hicle. If the temperature reading does not
return to normal, turn the engine off imme-
diately and call for service.
NOTE:
As the coolant temperature gauge ap-
proaches "H," this indicator will illuminate
and a single chime will sound.
— Electronic Throttle Control (ETC)
Warning Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected while the vehicle is run-
ning, the light will either stay on or flash
depending on the nature of the problem.
Cycle the ignition when the vehicle is safely
and completely stopped and the transmission
is placed in the PARK position. The light
should turn off. If the light remains on with
the vehicle running, your vehicle will usually
be drivable; however, see an authorized
dealer for service as soon as possible.
NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.
If the light continues to flash when the ve-
hicle is running, immediate service is re-
quired and you may experience reduced per-
formance, an elevated/rough idle, or engine
stall and your vehicle may require towing.
The light will come on when the ignition is
placed in the ON/RUN or ACC/ON/RUN posi-tion and remain on briefly as a bulb check. If
the light does not come on during starting,
have the system checked by an authorized
dealer.
— Oil Pressure Warning Light
This light indicates low engine oil pressure. If
the light turns on while driving, stop the
vehicle and shut off the engine as soon as
possible. A chime will sound when this light
turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how
much oil is in the engine. The engine oil level
must be checked under the hood.
— Seat Belt Reminder Warning Light
This light indicates when the driver or pas-
senger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or
ACC/ON/RUN position and if the driver’s seat
belt is unbuckled, a chime will sound and the
light will turn on. When driving, if the driver
or front passenger seat belt remains unbuck-
led, the Seat Belt Reminder Light will flash or
GETTING TO KNOW YOUR INSTRUMENT PANEL
60