2021 JEEP WRANGLER UNLIMITED display

45
The temperature can be displayed in U.S.
or Metric units by selecting the U.S./
Metric customer-programmable feature.
Refer to the “Uconnect Settings” in
“Multimedia” in the Owner’s Manual for
further information.
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 provide proper corrosion protec -
tion and to protect against engine over -
heating. OAT coolant (conforming to
MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and
defroster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Use of the Air Recircula -
tion mode during Winter months is not
recommended, 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
adequate 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.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc -
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
Use care when washing the inside of the
rear window. Do not use abrasive window
cleaners on the interior surface of the
window. Use a soft cloth and a mild
washing solution, wiping parallel to the
heating elements. Labels can be peeled
off after soaking with warm water.
Do not use scrapers, sharp instruments,
or abrasive window cleaners on the inte-
rior surface of the window.
Keep all objects a safe distance from the
window.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 45

59
(Continued)

ENVIRONMENTAL PROTECTION
SYSTEMS — IF EQUIPPED

Gasoline Particulate Filter (GPF) — 2.0L T4
Petrol Versions Only
The Gasoline Particulate Filter is a mechan-
ical filter, integral to the exhaust system,
which physically traps carbon particles present in the exhaust gases of 2.0L T4
petrol engines.
The particulate filter is needed to eliminate
almost all carbon particle emissions in
compliance with current/future regulations
and standards.
Since this filter physically traps particulates,
it must be cleaned (regenerated) during
normal driving operation to remove carbon
particles. The 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.
Dedicated messages can appear in the
instrument cluster display as a result of the
condition of the filter. Refer to the opening
paragraph of the "Warning Lights And
Messages" section for further information.
WARNING!
Cargo must be securely tied down before
driving your vehicle. Improperly secured
loads can fly off the vehicle, particularly
at high speeds, resulting in personal
injury or property damage. Follow the roof
rack cautions when carrying cargo on your
roof rack.
CAUTION!
To avoid damage to the roof rack and
vehicle, do not exceed the maximum roof
rack load capacity. Always distribute
heavy loads as evenly as possible and
secure the load appropriately.
Long loads, which extend over the wind
-
shield, should be secured to both the
front and rear of the vehicle.
Place a blanket or other protection
between the surface of the roof and the
load.
Travel at reduced speeds and turn
corners carefully when carrying large or
heavy loads on the roof rack. Wind
forces, due to natural causes or nearby
truck traffic, can add sudden upward
loads. It is recommended to not carry
large flat loads, such as wood panels or
surfboards, which may result in damage
to the cargo or your vehicle.
Load should always be secured to cross
bars first, with tie down loops used as
additional securing points if needed. Tie
loops are intended as supplementary tie
down points only. Do not use ratcheting
mechanisms with the tie loops. Check
the straps frequently to be sure that the
load remains securely attached.
CAUTION! (Continued)
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 59

60
GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER
DISPLAY
Your vehicle may be equipped with an instru-
ment cluster display, which offers useful
information to the driver. With the ignition in
the STOP/OFF mode, opening/closing of a
door will activate the display for viewing, and
display the total miles, or kilometers, in the
odometer. Your instrument cluster display is
designed to display important information
about your vehicle’s systems and features.
Using a driver interactive display located on
the instrument panel, your instrument
cluster display can show how systems are
working and give warnings when they aren’t.
The steering wheel mounted controls allow
you to scroll through and enter the main
menus and submenus. You can access the
specific information you want and make
selections and adjustments.
Instrument Cluster Display Location And
Controls
The instrument cluster display is located in
the center of the instrument cluster.
3.5 Inch Instrument Cluster Display Location
7.0 Inch Instrument Cluster Display Location

The top line where Reconfigurable Telltales,
Compass Direction, Outside Temperature,
Time, Range, MPG or Trip are displayed.
This also displays the speedometer when
other menu pages are displayed.

The main display area where the menus
and pop up messages are displayed.
The lower line where reconfigurable tell -
tales, menu name and menu page are
displayed.
Instrument Cluster Display Control Buttons
1 — OK Button
2 — Up Arrow Button
3 — Right Arrow Button
4 — Down Arrow Button
5 — Left Arrow Button
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 60

61

Push the up arrow button to scroll upward
through the main menus (Speedometer,
mph/km/h, Vehicle Info, Terrain, Driver
Assist, Fuel Economy, Trip A, Trip B, Stop/
Start, Audio, Navigation, Stored Messages,
Screen Setup and Speed Warning).

Push the down arrow button to scroll
downward through the main menu and
submenus (Speedometer, mph/km/h,
Vehicle Info, Terrain, Driver Assist, Fuel
Economy, Trip A, Trip B, Stop/Start,
Audio, Navigation, Stored Messages,
Screen Setup and Speed Warning).
Push the right arrow button to access the
information screens or submenu screens
of a main menu item.
Push the left arrow button to access the
information screens or submenu screens
of a main menu item.

Push the OK button to access/select the
information screens or submenu screens of a
main menu item. Push and hold the OK
button for two seconds to reset displayed/
selected features that can be reset.

Oil Change Indicator System — If
Equipped
Your vehicle is equipped with an engine oil
change indicator system. The “Oil Change
Due” message will display in the instrument
cluster display for five seconds after a single
chime has sounded, to indicate the next
scheduled oil change interval. The engine oil
change indicator system is duty cycle based,
which means the engine oil change interval
may fluctuate, dependent upon your
personal driving style.
Refer to an authorized dealership for an oil
change.
Instrument Cluster Display Selectable
Items
The instrument cluster display can be used
to view the following main menu items:
NOTE:
Depending on the vehicles options, feature
settings may vary.
NOTE:
Refer to “Getting To Know Your Instrument
Panel” in your Owner’s Manual for further
information. • Speedometer • Stop/Start
• Vehicle Info • Audio
• Off-Road • Messages
• Fuel Economy • Screen Setup
• Trip Info • Driver Assistance
— If Equipped
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 61

GETTING TO KNOW YOUR INSTRUMENT PANEL
62
Gear Shift Indicator (GSI) — If Equipped
The Gear Shift Indicator (GSI) system is
enabled on vehicles when automatic trans-
mission is in manual shift mode. The GSI
provides the driver with a visual indication
when the recommended gear shift point has
been reached. This indication notifies the
driver that changing gears will allow a reduc -
tion in fuel consumption. When the up shift
indicator is shown on the instrument cluster
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 remains illuminated until the driver
changes gear, or the driving conditions
return to a situation where changing gears is
not required to improve fuel consumption.
Diesel Displays
When the appropriate conditions exist, the
following messages display in the instrument
cluster display:
Exhaust Filter Nearing Full Safely Drive at
Consistent Speeds to Clear
Exhaust Filter Full – Power Reduced See
Dealer
Exhaust System Service Required – See
Dealer
Exhaust System – Filter XX% Full Service
Required See Dealer
Exhaust System Regeneration in Process
Continue Driving

Exhaust System – Regeneration Completed

Diesel Particulate Filter (DPF) Messages
This engine meets all required diesel engine
emissions standards. To achieve these emis -
sions standards, your vehicle is equipped
with a state-of-the-art engine and exhaust
system. These systems are seamlessly inte -
grated into your vehicle and managed by the
Powertrain Control Module (PCM). The PCM
manages engine combustion to allow the
exhaust system’s catalyst to trap and burn
Particulate Matter (PM) pollutants, with no
input or interaction on your part.
WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such
materials might be grass or leaves coming
into contact with your exhaust system. Do
not park or operate your vehicle in areas
where your exhaust system can contact
anything that can burn.
CAUTION!
Always drive at a speed appropriate to the
traffic conditions, the weather and traffic
regulations. The engine may be switched
off even if the warning light is on: repeated
interruptions of the regeneration process
could cause an early deterioration of
engine oil. For this reason it is always
advisable to wait for the symbol to go off
before turning off the engine, following the
instructions above. Do not complete the
DPF regeneration process when the vehicle
is stopped.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 62

63
Fuel System Messages
The following chart contains a list of different messages that may appear in the instrument cluster, depending on different system or fuel
conditions. Use the descriptions to interpret what the message means and determine the best action to take.
Diesel Emissions Additive AdBlue® Warning Messages:
MESSAGE DESCRIPTION
Low Diesel Emissions Additive
AdBlue® Level WarningThe first low level warning will be given at around a 1,490 miles (2,400 km) range, and is determined
according to the current consumption rate. The “AdBlue® Low Level” warning light and message will
display on the instrument panel. The AdBlue® low level warning light will remains lit until the AdBlue®
tank is topped up with at least 1.32 gallons (5 Liters) of AdBlue®.
If the level is not resolved, an additional warning appear whenever a certain threshold is reached until it
will no longer be possible to start the engine.
When 125 miles (200 km) are remaining before the AdBlue® tank is empty, a message will appear on
the instrument panel, accompanied by a buzzer sound. When the range is at zero, the display will show
a dedicated message (if equipped). In this case, the engine will not restart.
It will be possible to restart the engine again as soon as AdBlue® is added; the minimum amount
required is 1.32 gallons (5 Liters). Fill the AdBlue® tank as soon as possible with at least 1.32 gallons
(5 Liters) of AdBlue®. If filling is completed with autonomy tank AdBlue® to zero, it could be possible
to wait two minutes before starting the vehicle.
NOTE:
When the AdBlue® tank is empty, and the vehicle is stopped, it is no longer possible to restart the vehicle
until a minimum of 1.32 gallons (5 Liters) of AdBlue® is added to the AdBlue® tank.
Engine Will Not Restart Service
AdBlue® System See Dealer This message will display if AdBlue® system issue detected is not serviced during the allowed period.
Your engine will not restart unless your vehicle is serviced by an authorized dealer. If the level is not
resolved, an additional warning appear whenever a certain threshold is reached until it will no longer be
possible to start the engine. When 125 miles (200 km) are remaining before the AdBlue® tank is
empty, a message will appear on the instrument panel, accompanied by a buzzer sound.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 63

GETTING TO KNOW YOUR INSTRUMENT PANEL
64
Engine Will Not Start Service
AdBlue® System See DealerNOTE:
The display may take up to five seconds to update after adding two gallons (7.5 Liters) or more of
AdBlue® to the AdBlue® tank. If you have a fault related to the AdBlue® system, the display may not
update to the new level. See an authorized dealer for service.
AdBlue® freezes at temperatures lower than 12°F (-11°C). If the car stands for a long time at this
temperature, 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® to return to liquid state before topping up.
Gasoline Particulate Filter (GPF) System Messages — If Equipped:
Exhaust System Service Required The engine control unit has detected an issue with the gasoline particulate filter system. See an
authorized dealer.
Exhaust System Regeneration in
Process Continue Driving The 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 normally. This message will continue to appear until regeneration is complete.
Exhaust System Regeneration
Complete The exhaust gas filter regeneration has been completed. This message will briefly appear.
Diesel Emissions Additive AdBlue® Warning Messages:
MESSAGE DESCRIPTION
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 64

65
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 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
options and current vehicle status. Some
telltales 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 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.
— Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake light
turns on it may indicate that the parking
brake is applied, that the brake fluid level is
low, or that there is a problem with the
anti-lock brake system.
If the light remains on when the parking
brake has been disengaged, and the fluid
level is at the full mark on the master
cylinder reservoir, it indicates a possible
brake hydraulic system malfunction or that a
problem with the Brake Booster has been
detected by the Anti-Lock Brake System
(ABS) / Electronic Stability Control (ESC)
system. In this case, the light will remain on
until the condition has been corrected. If the
problem is related to the brake booster, the
ABS pump will run when applying the brake,
and a brake pedal pulsation may be felt
during each stop.
The dual brake system provides a reserve
braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in
either half of the dual brake system is indi
-
cated by the Brake Warning Light, which will
turn on when the brake fluid level in the
master cylinder has dropped below a speci -
fied level.
The light will remain on until the cause is
corrected.
NOTE:
The light may flash momentarily during
sharp cornering maneuvers, which change
fluid level conditions. The vehicle should
have service performed, and the brake fluid
level checked.
If brake failure is indicated, immediate
repair is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
Have the vehicle checked immediately.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 65