2020 JEEP CHEROKEE warning lights

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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— 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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71
The system only warns the tire pressure is
low: it is not able to inflate them.
Yellow Indicator Lights — Active Speed Limiter Fault Indicator
Light — If Equipped
This warning light will illuminate to signal
when there is a fault detected with the Active
Speed Limiter.
— Forward Collision Warning Off
Indicator Light — If Equipped
This light indicates that Forward Collision
Warning is off.
— 4WD Low Indicator Light — If
Equipped
This light alerts the driver that the vehicle is
in the four-wheel drive LOW mode. The front
and rear driveshafts are mechanically locked
together forcing the front and rear wheels to
rotate at the same speed. Low range provides
a greater gear reduction ratio to provide
increased torque at the wheels.
Refer to “Four-Wheel Drive Operation” in
“Starting And Operating” for further informa -
tion on four-wheel drive operation and proper
use.
— Rear Axle Lock Indicator Light
This light indicates when the rear axle lock
has been activated.
— Rear Fog Indicator — If Equipped
This indicator light will illuminate when the
rear fog lights are on.
— Glow Plug Light — If Equipped
This vehicle will inhibit engine cranking
when the ambient temperature is less than
–22° F (–30° C) and the oil temperature
sensor reading indicates an engine block
heater has not been used. The Glow Plug
light will flash during in cold weather for up
to ten seconds.
If equipped with a block heater harness the
message “Plug In Engine Heater”, will be
displayed in the instrument cluster when the
ambient temperature is below 5°F (-15° C) at
the time the engine is shut off as a reminder
to avoid possible crank delays at the next
cold start.
CAUTION!
The TPMS has been optimized for the
original equipment tires and wheels.
TPMS pressures and warning have been
established for the tire size equipped on
your vehicle. Undesirable system operation
or sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the
Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using
an aftermarket tire sealant it is
recommended that you take your vehicle to
an authorized dealer to have your sensor
function checked.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
72
— Low Diesel Exhaust Emissions Additive
AdBlue® (UREA) Indicator Light — If
Equipped
The Low Diesel Exhaust Emissions Additive
AdBlue® (UREA) indicator light illuminates
when the AdBlue® level is low.
Fill the AdBlue® tank as soon as possible
with at least 1.3 gallons (5 liters) of
AdBlue®.
If filling the tank is done with a remaining
range of AdBlue® in the tank equal to zero,
you may need to wait 2 minutes before
starting the vehicle.
Refer to “Starting And Operating” for further
information.
— Water In Fuel Indicator Light — If
Equipped
The “Water In Fuel Indicator Light” will illu -
minate when there is water detected in the
fuel filter. If this light remains on, DO NOT
start the vehicle before you drain the water
from the fuel filter to prevent engine
damage, and please see an authorized
dealer.
Green Indicator Lights
— Active Speed Limiter SET Indicator
Light
This light will turn on when the Active Speed
Limiter is on and set to a specific speed.
— Adaptive Cruise Control (ACC) Set With
Target Vehicle Light — If Equipped
This will display when the ACC is set and a
target vehicle is detected. Refer to “Adaptive
Cruise Control (ACC)” in “Starting And Oper -
ating” for further information.
— Adaptive Cruise Control (ACC) Set
Without Target Vehicle Light — If Equipped

This will display the distance setting for the
ACC system when the system is engaged. Refer
to “Adaptive Cruise Control (ACC)” in “Starting
And Operating” for further information.

— Cruise Control Set Indicator Light — If
Equipped
This indicator light will illuminate when the
cruise control is set to the desired speed.
Refer to “Speed Control” in “Starting And
Operating” for further information.
— Front Fog Indicator Light — If Equipped
This indicator light will illuminate when the
front fog lights are on.
— LaneSense Indicator Light — If
Equipped
The LaneSense indicator light illuminates
solid green when both lane markings have
been detected and the system is armed and
ready to provide visual and torque warnings
if an unintentional lane departure occurs.
CAUTION!
The presence of water in the fuel system
circuit may cause severe damage to the
injection system and irregular engine
operation. If the indicator light is
illuminated, contact an authorized dealer
as soon as possible to bleed the system. If
the above indications come on
immediately after refuelling, water has
probably been poured into the tank: switch
the engine off immediately and contact an
authorized dealer.
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73
Refer to “LaneSense — If Equipped” in
“Starting And Operating” for further informa-
tion.
— Park/Headlight On Indicator Light
This indicator light will illuminate when the
park lights or headlights are turned on.
— Stop/Start Active Indicator Light
This telltale will illuminate when the Stop/
Start function is in Autostop mode.
— Turn Signal Indicator Lights
When the left or right turn signal is activated,
the turn signal indicator will flash inde -
pendently and the corresponding exterior
turn signal lamps will flash. Turn signals can
be activated when the multifunction lever is
moved down (left) or up (right).
NOTE:
A continuous chime will sound if the
vehicle is driven more than 1 mile
(1.6 km) with either turn signal on.
Check for an inoperative outside light bulb
if either indicator flashes at a rapid rate.
White Indicator Lights
— Active Speed Limiter Ready Indicator
Light — If Equipped
This light will turn on when the Active Speed
Limiter is on, but not set.
/ — Adaptive Cruise Control (ACC)
Ready Light — If Equipped

This light will turn on when Adaptive Cruise
Control (ACC) has been turned on, but is not set.
Refer to “Adaptive Cruise Control” in “Starting
And Operating” for further information.

— Adaptive Cruise Control (ACC) Set
Light — If Equipped
This light will turn on when the vehicle
equipped with Adaptive Cruise Control (ACC)
has reached the speed desired and the set
button has been selected. Refer to “Adaptive
Cruise Control” in “Starting And Operating”
for further information.
— Hill Descent Control (HDC) Indicator
Light — If Equipped
This indicator shows when the Hill Descent
Control (HDC) feature is turned on. The lamp
will be on solid when HDC is armed. HDC can
only be armed when the transfer case is in
the 4WD LOW position and the vehicle speed
is less then 30 mph (48 km/h). If these
conditions are not met while attempting to
use the HDC feature, the HDC indicator light
will flash on/off.
— LaneSense Indicator Light — If
Equipped
When the LaneSense system is ON, but not
armed, the LaneSense indicator light illumi -
nates solid white. This occurs when only left,
right, or neither lane line has been detected.
If a single lane line is detected, the system is
ready to provide only visual warnings if an
unintentional lane departure occurs on the
detected lane line.
Refer to “LaneSense — If Equipped” in
“Starting And Operating” for further informa -
tion.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
74
— Speed Warning Indicator Light
The white indicator will illuminate along with
a text message (Speed Warning Set to XX
followed by unit), once the feature is
enabled. When the set speed is exceeded, a
continuous chime (up to 10 seconds or until
the speed is no longer exceeded) will sound
along with a Speed Warning Exceeded pop
up message and the indicator light will turn
yellow and flash.
NOTE:
The number “31” is only an example of a
speed that can be selected.
— Selec Speed Control Indicator Light —
If Equipped
This light will turn on when “Selec Speed
Control” is activated.
To activate “Selec Speed Control”, assure
the vehicle is Four Wheel Drive Low (4WD)
and push the button on the Instrument
Panel.
NOTE:
If the vehicle is not in 4WD Low, “To Enter
Selec-Speed Shift to 4WD Low” will appear
in the instrument cluster display.
— Cruise Control Ready Indicator Light
This light will turn on when the Speed
Control has been turned on, but not set.
Refer to “Speed Control — If Equipped” in
“Starting And Operating” for further informa -
tion.
Blue Indicator Lights
— High Beam Indicator Light
This indicator light will illuminate to indicate
that the high beam headlights are on. With
the low beams activated, push the multi -
function lever forward (toward the front of
the vehicle) to turn on the high beams. Pull
the multifunction lever rearward (toward the
rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the
lever toward you for a temporary high beam
on, “flash to pass” scenario.
ONBOARD DIAGNOSTIC
SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II.
This system monitors the performance of the
emissions, engine, and transmission control
systems. When these systems are operating
properly, your vehicle will provide excellent
performance and fuel economy, as well as
engine emissions well within current govern -
ment regulations.
If any of these systems require service, the
OBD II system will turn on the Malfunction
Indicator Light (MIL). It will also store diag -
nostic codes and other information to assist
your service technician in making repairs.
Although your vehicle will usually be drive -
able and not need towing, see an authorized
dealer for service as soon as possible.
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SAFETY
90
Modes Of Operation
Three selectable modes of operation are
available in the Uconnect System. Refer to
“Uconnect Settings” in “Multimedia” in the
Owner’s Manual for further information.
Blind Spot Alert Lights Only
When operating in Blind Spot Alert mode,
the BSM system will provide a visual alert in
the appropriate side view mirror based on a
detected object. However, when the system
is operating in Rear Cross Path (RCP) mode,
the system will respond with both visual and
audible alerts when a detected object is
present. Whenever an audible alert is
requested, the radio is muted.
Blind Spot Alert Lights/Chime
When operating in Blind Spot Alert Lights/
Chime mode, the BSM system will provide a
visual alert in the appropriate side view
mirror based on a detected object. If the turn
signal is then activated, and it corresponds
to an alert present on that side of the vehicle,
an audible chime will also be sounded.
Whenever a turn signal and detected objectare present on the same side at the same
time, both the visual and audible alerts will
be issued. In addition to the audible alert the
radio (if on) will also be muted.
NOTE:
Whenever an audible alert is requested by
the BSM system, the radio is also muted.
When the system is in RCP, the system shall
respond with both visual and audible alerts
when a detected object is present. Whenever
an audible alert is requested, the radio is
also muted. Turn/hazard signal status is
ignored; the RCP state always requests the
chime.
Blind Spot Alert Off
When the BSM system is turned off there will
be no visual or audible alerts from either the
BSM or RCP systems.
NOTE:
The BSM system will store the current oper
-
ating mode when the vehicle is shut off.
Each time the vehicle is started the previ -
ously stored mode will be recalled and used.
Forward Collision Warning (FCW) With
Mitigation — If Equipped
FCW With Mitigation Operation
The Forward Collision Warning (FCW) system
with mitigation provides the driver with
audible warnings, visual warnings (within the
instrument cluster display), and may apply a
haptic warning to warn the driver when it
detects a potential frontal collision. The
warnings are intended to provide the driver
with enough time to react, avoid or mitigate
the potential collision.
NOTE:
FCW monitors the information from the
forward looking sensors as well as the Elec -
tronic Brake Controller (EBC), to calculate
the probability of a forward collision. When
the system determines that a forward colli -
sion is probable, the driver will be provided
with audible and visual warnings and may
provide a haptic warning in the form of a
brake jerk.
If the driver does not take action based upon
these progressive warnings, then the system
will provide a limited level of active braking
to help slow the vehicle and mitigate the
potential forward collision. If the driver
reacts to the warnings by braking and the
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99
9. If the air bag system in this vehicle needsto be modified to accommodate a
disabled person, refer to the “Customer
Assistance” section for customer service
contact information.Seat Belt Systems
Buckle up even though you are an excellent
driver, even on short trips. Someone on the
road may be a poor driver and could cause a
collision that includes you. This can happen
far away from home or on your own street.
Research has shown that seat belts save
lives, and they can reduce the seriousness of
injuries in a collision. Some of the worst inju -
ries happen when people are thrown from the
vehicle. Seat belts reduce the possibility of
ejection and the risk of injury caused by
striking the inside of the vehicle. Everyone in
a motor vehicle should be belted at all times.
Enhanced Seat Belt Use Reminder System
(BeltAlert)
Front And Rear Seat BeltAlert (If Equipped)
Front Seat BeltAlert
BeltAlert is a feature intended to remind
the driver and outboard front seat passenger
to buckle their seat belts. The BeltAlert
feature is active whenever the ignition switch
is in the START or ON/RUN position. Initial Indication
If the driver is unbuckled when the ignition
switch is first in the START or ON/RUN posi
-
tion a chime will signal for a few seconds. If
the driver or outboard front seat passenger is
unbuckled when the ignition switch is first in
the START or ON/RUN position the respec -
tive Seat Belt Reminder Light will turn solid
red and remain red until the seat belt is
buckled. The respective Seat Belt Reminder
Light will turn solid green once the seat belt
is buckled. After the driver and outboard
front seat passenger have buckled their seat
belts all Seat Belt Reminder Lights will turn
off. The outboard front passenger seat
BeltAlert is not active when the outboard
front passenger seat is unoccupied.
BeltAlert Warning Sequence
The BeltAlert warning sequence is activated
when the vehicle is moving above a specified
vehicle speed range and the driver or
outboard front seat passenger is unbuckled
(the outboard front passenger seat BeltAlert
is not active when the outboard front
passenger seat is unoccupied). The BeltAlert
warning sequence starts by blinking the
respective Seat Belt Reminder Light and
sounding an intermittent chime. Once the
WARNING!
NEVER use a rearward facing child
restraint on a seat protected by an
ACTIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY to the CHILD can
occur.
Never install a rear-facing child restraint
in the front seat of a vehicle. Only use a
rear-facing child restraint in the rear
seat. If the vehicle does not have a rear
seat, do not transport a rear-facing child
restraint in that vehicle.
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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