2018 JEEP CHEROKEE ECU

GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER
DISPLAY...................54
Instrument Cluster Display Controls ....54
Oil Change Reset — If Equipped ......55
Instrument Cluster Display Selectable
Items ......................55
WARNING LIGHTS AND
MESSAGES.................56
Red Warning Lights ..............56
Yellow Warning Lights ............59
Yellow Indicator Lights ............63
Green Indicator Lights ............63 White Indicator Lights
............64
Blue Indicator Lights .............65ONBOARD DIAGNOSTIC
SYSTEM—OBDII ............66
Onboard Diagnostic System (OBD II)
Cybersecurity.................66
GETTING TO KNOW YOUR INSTRUMENT PANEL
53

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.
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 re-
quired. 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.
— 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.
— Oil Pressure Warning Light
This warning light will illuminate to indicate
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.
— Transmission Temperature Warning
Light — If Equipped
This light indicates 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.
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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 automatic transmis-
sion control systems. When these systems are
operating properly, your vehicle will provide
excellent performance and fuel economy, as
well as 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 drivable
and not need towing, see an authorized
dealer for service as soon as possible.
CAUTION!
• Prolonged driving with the MIL on couldcause further damage to the emission
control system. It could also affect fuel
economy and driveability. The vehicle
must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the vehicle is
running, severe catalytic converter dam-
age and power loss will soon occur. Im-
mediate service is required.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (OBD II) and a connection
port to allow access to information related to
the performance of your emissions controls.
Authorized service technicians may need to
access this information to assist with the
diagnosis and service of your vehicle and
emissions system.
WARNING!
• ONLY an authorized service technicianshould connect equipment to the OBD II
connection port in order to diagnose or
service your vehicle.
• If unauthorized equipment is connected
to the OBD II connection port, such as a
driver-behavior tracking device, it may:• Be possible that vehicle systems,
including safety related systems,
could be impaired or a loss of ve-
hicle control could occur that may
result in an accident involving seri-
ous injury or death.
• Access, or allow others to access,
information stored in your vehicle
systems, including personal infor-
mation.
For further information, refer to “Cybersecu-
rity” in “Multimedia”.
GETTING TO KNOW YOUR INSTRUMENT PANEL
66

OCCUPANT RESTRAINT
SYSTEMS
Some of the most important safety features in
your vehicle are the restraint systems:
Occupant Restraint Systems Features
• Seat Belt Systems
• Supplemental Restraint Systems (SRS) AirBags
• Child Restraints
Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask your autho-
rized dealer.
Important Safety Precautions
Please pay close attention to the information
in this section. It tells you how to use your
restraint system properly, to keep you and
your passengers as safe as possible.
Here are some simple steps you can take to
minimize the risk of harm from a deploying
air bag: 1. Children 12 years old and under should
always ride buckled up in the rear seat of
a vehicle with a rear seat.
2. If a child from 2 to 12 years old (not in a rear-facing child restraint) must ride in
the front passenger seat, move the seat as
far back as possible and use the proper
child restraint (refer to “Child Restraints”
in this section for further information). 3. Children that are not big enough to wear
the vehicle seat belt properly (refer to
“Child Restraints” in this section for fur-
ther information) should be secured in the
rear seat of a vehicle with a rear seat in
child restraints or belt-positioning booster
seats. Older children who do not use child
restraints or belt-positioning booster seats
should ride properly buckled up in the rear
seat of a vehicle with a rear seat.
4. Never allow children to slide the shoulder belt behind them or under their arm.
5. You should read the instructions provided with your child restraint to make sure that
you are using it properly.
6. All occupants should always wear their lap and shoulder belts properly.
7. The driver and front passenger seats should be moved back as far as practical
to allow the front air bags room to inflate.
8. Do not lean against the door or window. If your vehicle has side air bags, and deploy-
ment occurs, the side air bags will inflate
forcefully into the space between occu-
pants and the door and occupants could
be injured.
Warning Label On Front Passenger Sun Visor
87

driver and occupied outboard front seat pas-
senger seat belts are buckled. The driver
should instruct all occupants to buckle their
seat belts.
Change Of Status
If the driver or outboard front seat passenger
unbuckles their seat belt while the vehicle is
traveling, the BeltAlert warning sequence will
begin until the seat belts are buckled again.
The outboard front passenger seat BeltAlert
is not active when the outboard front passen-
ger seat is unoccupied. BeltAlert may be
triggered when an animal or other items are
placed on the outboard front passenger seat
or when the seat is folded flat (if equipped). It
is recommended that pets be restrained in
the rear seat (if equipped) in pet harnesses or
pet carriers that are secured by seat belts,
and cargo is properly stowed.
Rear Seat BeltAlert
Rear Seat BeltAlert shows the driver whether
the seat belts in the rear seat are buckled or
unbuckled. When the ignition switch is in the
START or ON/RUN position, a Seat Belt Re-
minder Light turns on for each rear seatposition. If a seat belt is buckled, the Seat
Belt Reminder Light for that position will
illuminate solid green. If a seat belt is un-
buckled, the Seat Belt Reminder Light will
illuminate red. If a rear passenger unbuckles
a seat belt that was buckled at the start of the
trip, a single chime will sound and the Seat
Belt Reminder Light for that position will
change from solid green to blinking red. This
will alert the driver to stop the vehicle until
the rear passenger buckles the seat belt
again. After the driver and outboard front seat
passenger have buckled their seat belts all
Seat Belt Reminder Lights will turn off.
BeltAlert can be activated or deactivated by
your authorized dealer. FCA US LLC does not
recommend deactivating BeltAlert.
NOTE:
If BeltAlert has been deactivated, the Seat
Belt Reminder Light will turn on and remain
on until the driver and outboard front seat
passenger seat belts are buckled.
Lap/Shoulder Belts
All seating positions in your vehicle are
equipped with lap/shoulder belts.
The seat belt webbing retractor will lock only
during very sudden stops or collisions. This
feature allows the shoulder part of the seat
belt to move freely with you under normal
conditions. However, in a collision the seat
belt will lock and reduce your risk of striking
the inside of the vehicle or being thrown out
of the vehicle.
WARNING!
• Relying on the air bags alone could lead
to more severe injuries in a collision. The
air bags work with your seat belt to
restrain you properly. In some collisions,
the air bags won’t deploy at all. Always
wear your seat belt even though you have
air bags.
• In a collision, you and your passengers
can suffer much greater injuries if you
are not properly buckled up. You can
strike the interior of your vehicle or other
passengers, or you can be thrown out of
the vehicle. Always be sure you and
others in your vehicle are buckled up
properly.
89

WARNING!
your seat belt safely and to keep your
passengers safe, too.
• Position the shoulder belt across the
shoulder and chest with minimal, if any
slack so that it is comfortable and not
resting on your neck. The retractor will
withdraw any slack in the shoulder belt.
• Misadjustment of the seat belt could
reduce the effectiveness of the safety
belt in a crash.
Seat Belts And Pregnant Women
Seat belts must be worn by all occupants
including pregnant women: the risk of injury
in the event of an accident is reduced for the
mother and the unborn child if they are wear-
ing a seat belt.
Position the lap belt snug and low below the
abdomen and across the strong bones of the
hips. Place the shoulder belt across the chest
and away from the neck. Never place the
shoulder belt behind the back or under the
arm.
Seat Belt Pretensioner
The front seat belt system is equipped with
pretensioning devices that are designed to
remove slack from the seat belt in the event
of a collision. These devices may improve the
performance of the seat belt by removing
slack from the seat belt early in a collision.
Pretensioners work for all size occupants,
including those in child restraints.
NOTE:
These devices are not a substitute for proper
seat belt placement by the occupant. The
seat belt still must be worn snugly and posi-
tioned properly. The pretensioners are triggered by the Occu-
pant Restraint Controller (ORC). Like the air
bags, the pretensioners are single use items.
A deployed pretensioner or a deployed air bag
must be replaced immediately.
Energy Management Feature
The front seat belt system is equipped with
an Energy Management feature that may help
further reduce the risk of injury in the event of
a collision. The seat belt system has a retrac-
tor assembly that is designed to release web-
bing in a controlled manner.
Switchable Automatic Locking Retractors
(ALR) — If Equipped
The seat belts in the passenger seating posi-
tions may be equipped with a Switchable
Automatic Locking Retractor (ALR) which is
used to secure a child restraint system. For
additional information, refer to “Installing
Child Restraints Using The Vehicle Seat
Belt” under the “Child Restraints” section of
this manual. The figure below illustrates the
locking feature for each seating position.
Pregnant Women And Seat Belts
93

Group 2
Children who weigh between 15 kg and 25 kg
and who are too big for the Group 1 child
restraint may use a Group 2 child restraint
system.
As shown in fig. C, the Group 2 child restraint
system positions the child correctly with re-
spect to the seat belt so that the shoulder belt
crosses the child’s chest and not the neck,
and the lap belt is snug on the pelvis and not
the abdomen.
Group 3
Children who weigh between 22 kg and 36 kg
and who are tall enough to use the adult
shoulder belt may use a Group 3 child re-
straint. Group 3 child restraints position the
lap belt on the child’s pelvis. The child must
be tall enough that the shoulder belt crosses
the child’s chest and not their neck.
Fig. D shows an example of a Group 3 child
restraint system correctly positioning the
child on the rear seat.
WARNING!
• Improper installation can lead to failureof an infant or child restraint. It could
come loose in a collision. The child
could be badly injured or killed. Follow
the child restraint manufacturer’s direc-
tions exactly when installing an infant or
child restraint.
• After a child restraint is installed in the
vehicle, do not move the vehicle seat
forward or rearward because it can
loosen the child restraint attachments.
Remove the child restraint before ad-
justing the vehicle seat position. When
the vehicle seat has been adjusted, re-
install the child restraint.
• When your child restraint is not in use,
secure it in the vehicle with the seat belt
or ISOFIX anchorages, or remove it from
the vehicle. Do not leave it loose in the
vehicle. In a sudden stop or accident, it
could strike the occupants or seatbacks
and cause serious personal injury.
Fig. CFig. D
107

equipped with adjustable rear head re-
straints, raise the head restraint, and
where possible, route the tether strap un-
der the head restraint and between the
two posts. If not possible, lower the head
restraint and pass the tether strap around
the outboard side of the head restraint.
3. Attach the tether strap hook of the child restraint to the top tether anchorage as
shown in the diagram. 4. Remove slack in the tether strap accord-
ing to the child restraint manufacturer’s
instructions.
WARNING!
• An incorrectly anchored tether strapcould lead to increased head motion and
possible injury to the child. Use only the
anchorage position directly behind the
child seat to secure a child restraint top
tether strap.
• If your vehicle is equipped with a split
rear seat, make sure the tether strap
does not slip into the opening between
the seatbacks as you remove slack in the
strap.
Installing Child Restraints Using The Ve-
hicle Seat Belt
Child restraint systems are designed to be
secured in vehicle seats by lap belts or the
lap belt portion of a lap/shoulder belt.
WARNING!
• Improper installation or failure to prop-erly secure a child restraint can lead to
failure of the restraint. The child could
be badly injured or killed.
• Follow the child restraint manufactur-
er’s directions exactly when installing an
infant or child restraint.
The seat belts in the rear passenger seating
positions are equipped with a Switchable
Automatic Locking Retractor (ALR) that is
designed to keep the lap portion of the seat
belt tight around the child restraint. The ALR
retractor can be “switched” into a locked
mode by pulling all of the webbing out of the
retractor and then letting the webbing retract
back into the retractor. If it is locked, the ALR
will make a clicking noise while the webbing
is pulled back into the retractor. Refer to the
“Automatic Locking Mode” description in
“Switchable Automatic Locking Retractors
(ALR)” under “Occupant Restraint Systems”
for additional information on ALR.
Tether Anchorage Locations
SAFETY
114