2021 JEEP CHEROKEE Owner handbook (in English)

63
Diesel Emissions Additive AdBlue® Fault Warning Messages:
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.
Engine Will Not Start Service
AdBlue® System See Dealer NOTE:
The display may take up to five seconds to update after adding 2 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.
MESSAGE
DESCRIPTION
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GETTING TO KNOW YOUR INSTRUMENT PANEL
64
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. Always refer to the
information 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
— Seat Belt Reminder Warning Light
This warning light indicates when the driver
or passenger 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 unbuckled, the Seat Belt Reminder Light will
flash or remain on continuously and a chime
will sound.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— 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 indicated by
the Brake Warning Light, which will turn on
when the brake fluid level in the master
cylinder has dropped below a specified 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.
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65
If brake failure is indicated, immediate
repair is necessary.
Vehicles equipped with the Anti-Lock Brake
System (ABS) are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is
required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from
the OFF position to the ON/RUN position.
The light should illuminate for approximately
four seconds. The light should then turn off
unless the parking brake is applied or a brake
fault is detected. If the light does not illumi -
nate, have the light inspected by an autho -
rized dealer.
The light also will turn on when the parking
brake is applied with the ignition switch in
the ON/RUN position. NOTE:
This light shows only that the parking brake
is applied. It does not show the degree of
brake application.
— Battery Charge Warning Light

This warning light will illuminate when the
battery is not charging properly. If it stays on
while the engine is running, there may be a
malfunction with the charging system. Contact
an authorized dealer as soon as possible.

This indicates a possible problem with the
electrical system or a related component.
— Door Open Warning Light
This indicator will illuminate when a door is
ajar/open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Electric Power Steering Fault Warning
Light

This warning light will turn on when there's a
fault with the EPS (Electric Power Steering)
system. Refer to “Power Steering” in “Starting And Operating” in the Owner’s Manual for
further information.

— Electronic Throttle Control (ETC)
Warning Light
This warning light will illuminate to indicate
a problem with the Electronic Throttle
Control (ETC) system. If a problem is
detected while the vehicle is running, 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 (P) position. The light should turn
off. If the light remains on with the vehicle
running, your vehicle will usually be drive -
able; 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.
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.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
66
If the light continues to flash when the
vehicle is running, immediate service is
required. You may experience reduced
performance, an elevated/rough idle, or
engine stall and your vehicle may require
towing. The light will come on when the igni-
tion is placed in the ON/RUN or ACC/ON/
RUN position 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.
— Engine Coolant Temperature Warning
Light
This light warns of an overheated engine
condition. If the engine coolant temperature
is too high, this indicator will illuminate and
a single chime will sound.
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 vehicle. If the
temperature reading does not return to
normal, turn the engine off immediately and
call for service. Refer to “If Your Engine
Overheats” in “In Case Of Emergency” for
further information.
— Hood Open Warning Light
This warning light will illuminate when the
hood is left open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Liftgate Open Warning Light
This warning light will illuminate when the
liftgate is open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Oil Pressure Warning Light
This warning light will illuminate to indicate
low engine oil pressure. A chime will sound
when this light turns on and a message “Oil
Pressure Low” will display in the message
screen. If the light turns on while driving,
pull the vehicle to the side of the road at a
safe location, stop the vehicle, shut off the
engine as soon as possible, check the oil
level and correct the oil level if it is low.
Contact an authorized dealer. Do not operate the vehicle until the cause is
corrected. This light may or may not indicate
how much oil is in the engine. The engine oil
level must be checked according to section
“Scheduling Service” Checking Oil Level. If
the oil level is low and corrected, the engine
can be restarted. Otherwise the vehicle
should be serviced by an authorized dealer.
NOTE:
The light may flash, a message in the center
of the dash may be displayed momentarily
“low oil pressure” and a chime may occur
during sharp cornering maneuvers. If this
happen it may indicate a low oil level. The oil
level should be checked and serviced by a
dealer if this occurs.
— Oil Temperature Warning Light

This warning light will illuminate to indicate
the engine oil temperature is high. If the light
turns on while driving, stop the vehicle and
shut off the engine as soon as possible. Wait for
oil temperature to return to normal levels.

CAUTION!
If the vehicle is driven with low oil levels
severe engine damage can occur. Have the
vehicle checked immediately.
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67
— 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 run the engine at idle or slightly
faster, with the transmission in PARK or
NEUTRAL, 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
— Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to indicate
a fault in the ACC system. Contact a local
authorized dealer for service.
For further information, refer to “Adaptive
Cruise Control (ACC)” in “Starting And Oper -
ating.”
— Electronic Park Brake Warning Light
This warning light will illuminate to indicate
the Electronic Park Brake is not functioning
properly and service is required. Contact an
authorized dealer.
— 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 (ESC) 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 position, and when ESC is activated. It
should go out with the engine running. If the
“ESC Indicator Light” comes on continu -
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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GETTING TO KNOW YOUR INSTRUMENT PANEL
68
ously with the engine running, a malfunction
has been detected in the ESC system. If this
warning light remains on after several igni-
tion 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.
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
system 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.
— Low Fuel Warning Light
When the fuel level reaches approximately 2
gal (7.5 L) this light will turn on, and remain
on until fuel is added.
A single warning chime will sound with Low
Fuel Warning.
— Low Washer Fluid Warning Light — If
Equipped
This warning light will illuminate when the
windshield washer fluid is low.
— Service LaneSense Warning Light — If
Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please see an authorized
dealer.
— LaneSense Warning Light — If
Equipped

The LaneSense Warning Light will be solid
yellow when the vehicle is approaching a lane
marker. The warning light will flash when the
vehicle is crossing the lane marker.
Refer to “LaneSense — If Equipped" in
“Starting And Operating” for further informa
-
tion.
— 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 Malfunction
Indicator Light (MIL) may flash to alert
serious conditions that could lead to imme -
diate loss of power or severe catalytic
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69
converter damage. The vehicle should be
serviced by an authorized dealer as soon as
possible if this occurs. — AdBlue® (UREA) 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® (UREA) 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 mi (200 km) are remaining
before the AdBlue® tank is empty, a contin -
uous dedicated message will appear on the
instrument panel, accompanied 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. Contact an
authorized dealer for service.
— Service Forward Collision Warning
(FCW) Light — If Equipped
This warning light will illuminate to indicate
a fault in the Forward Collision Warning
System. Contact a local authorized dealer for
service. Refer to “Forward Collision Warning
(FCW) With Mitigation - If Equipped” in
“Safety” for further information.
— Service Stop/Start System Warning
Light
This warning light will illuminate to indicate
the Stop/Start system is not functioning
properly and service is required. Contact an
authorized 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.
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.
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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— 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.
Should one or more tires be in the condition
mentioned above, the display will show the
indications corresponding to each tire. Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom
-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.
As an added safety feature, your vehicle has
been equipped with a Tire Pressure Moni -
toring System (TPMS) that illuminates a low
tire pressure warning light when one or more
of your tires is significantly under-inflated.
Accordingly, when the low tire pressure
warning light illuminates, you should stop
and check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the
driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The TPMS
malfunction indicator is combined with the low
tire pressure telltale. When the system detects
a malfunction, the telltale will flash for approx
-
imately one minute and then remain continu -
ously illuminated. This sequence will continue
upon subsequent vehicle start-ups as long as
the malfunction exists. When the malfunction
indicator is illuminated, the system may not be
able to detect or signal low tire pressure as
intended. TPMS malfunctions may occur for a
variety of reasons, including the installation of
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow
the TPMS to continue to function properly.

CAUTION!
Do not continue driving with one or more
flat tires as handling may be
compromised. Stop the vehicle, avoiding
sharp braking and steering. If a tire
puncture occurs, repair immediately using
the dedicated tire repair kit and contact an
authorized dealer as soon as possible.
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