2018 JEEP CHEROKEE ECU

How To Stow An Unused Switchable-ALR
(ALR) Seat Belt:
When using the ISOFIX attaching system to
install a child restraint, stow all ALR seat
belts that are not being used by other occu-
pants or being used to secure child restraints.
An unused belt could injure a child if they
play with it and accidentally lock the seat belt
retractor. Before installing a child restraint
using the ISOFIX system, buckle the seat belt
behind the child restraint and out of the
child’s reach. If the buckled seat belt inter-
feres with the child restraint installation, in-
stead of buckling it behind the child re-
straint, route the seat belt through the child
restraint belt path and then buckle it. Do not
lock the seat belt. Remind all children in the
vehicle that the seat belts are not toys and
that they should not play with them.
Installing A Child Restraint With A Switch-
able Automatic Locking Retractor (ALR)
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 manufacturer’s
directions exactly when installing an in-
fant or child restraint.
1. Place the child seat in the center of the seating position. For some second row
seats, you may need to recline the seat
and/or raise the head restraint to get a
better fit. If the rear seat can be moved
forward and rearward in the vehicle, you
may wish to move it to its rear-most posi-
tion to make room for the child seat. You
may also move the front seat forward to
allow more room for the child seat.
2. Pull enough of the seat belt webbing from the retractor to pass it through the belt
path of the child restraint. Do not twist the
belt webbing in the belt path.
3. Slide the latch plate into the buckle until you hear a “click.” 4. Pull on the webbing to make the lap
portion tight against the child seat.
5. To lock the seat belt, pull down on the shoulder part of the belt until you have
pulled all the seat belt webbing out of the
retractor. Then, allow the webbing to re-
tract back into the retractor. As the web-
bing retracts, you will hear a clicking
sound. This means the seat belt is now in
the Automatic Locking mode.
6. Try to pull the webbing out of the retractor. If it is locked, you should not be able to
pull out any webbing. If the retractor is not
locked, repeat step 5.
7.
Finally, pull up on any excess webbing to
tighten the lap portion around the child
restraint while you push the child restraint
rearward and downward into the vehicle
seat.
8. Test that the child restraint is installed
tightly by pulling back and forth on the
child seat at the belt path. It should not
move more than 25 mm in any direction.
Any seat belt system will loosen with time, so
check the belt occasionally, and pull it tight if
necessary.
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Transporting Pets
Air Bags deploying in the front seat could
harm your pet. An unrestrained pet will be
thrown about and possibly injured, or injure a
passenger during panic braking or in a colli-
sion.
Pets should be restrained in the rear seat in
pet harnesses or pet carriers that are secured
by seat belts.
SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE
CARGO AREA.
WARNING!
• Do not leave children or animals insideparked vehicles in hot weather. Interior
heat build-up may cause serious injury
or death.
• It is extremely dangerous to ride in a
cargo area, inside or outside of a vehicle.
In a collision, people riding in these
WARNING!
areas are more likely to be seriously
injured or killed.
• Do not allow people to ride in any area of
your vehicle that is not equipped with
seats and seat belts.
• Be sure everyone in your vehicle is in a
seat and using a seat belt properly.
Exhaust Gas
WARNING!
Exhaust gases can injure or kill. They con-
tain carbon monoxide (CO), which is col-
orless and odorless. Breathing it can make
you unconscious and can eventually poi-
son you. To avoid breathing (CO), follow
these safety tips:
• Do not run the engine in a closed garageor in confined areas any longer than
needed to move your vehicle in or out of
the area.
• If you are required to drive with the
trunk/liftgate/rear doors open, make
WARNING!
sure that all windows are closed and the
climate control BLOWER switch is set at
high speed. DO NOT use the recircula-
tion mode.
• If it is necessary to sit in a parked
vehicle with the engine running, adjust
your heating or cooling controls to force
outside air into the vehicle. Set the
blower at high speed.
The best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of
the exhaust system, when exhaust fumes can
be detected inside the vehicle, or when the
underside or rear of the vehicle is damaged,
have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas
for broken, damaged, deteriorated, or misposi-
tioned parts. Open seams or loose connections
could permit exhaust fumes to seep into the
passenger compartment. In addition, inspect
the exhaust system each time the vehicle is
raised for lubrication or oil change. Replace as
required.
SAFETY
116

Safety Checks You Should Make Inside
The Vehicle
Seat Belts
Inspect the seat belt system periodically,
checking for cuts, frays, and loose parts.
Damaged parts must be replaced immedi-
ately. Do not disassemble or modify the sys-
tem.
Front seat belt assemblies must be replaced
after a collision. Rear seat belt assemblies
must be replaced after a collision if they have
been damaged (i.e., bent retractor, torn web-
bing, etc.). If there is any question regarding
seat belt or retractor condition, replace the
seat belt.
Air Bag Warning Light
The Air Bag warning lightwill turn on for
four to eight seconds as a bulb check when
the ignition switch is first turned to ON/RUN.
If the light is either not on during starting,
stays on, or turns on while driving, have the
system inspected at your authorized dealer as
soon as possible. After the bulb check, this
light will illuminate with a single chime when a fault with the Air Bag System has been
detected. It will stay on until the fault is
removed. If the light comes on intermittently
or remains on while driving, have your autho-
rized dealer service the vehicle immediately.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
Defroster
Check operation by selecting the defrost
mode and place the blower control on high
speed. You should be able to feel the air
directed against the windshield. See your
authorized dealer for service if your defroster
is inoperable.
Floor Mat Safety Information
Always use floor mats designed to fit your
vehicle. Only use a floor mat that does not
interfere with the operation of the accelera-
tor, brake or clutch pedals. Only use a floor
mat that is securely attached using the floor
mat fasteners so it cannot slip out of position
and interfere with the accelerator, brake or
clutch pedals or impair safe operation of your
vehicle in other ways.
WARNING!
An improperly attached, damaged, folded,
or stacked floor mat, or damaged floor mat
fasteners may cause your floor mat to in-
terfere with the accelerator, brake, or
clutch pedals and cause a loss of vehicle
control. To prevent SERIOUS INJURY or
DEATH:
• ALWAYS securely attach
your floor
mat using the floor mat fasteners. DO
NOT install your floor mat upside down
or turn your floor mat over. Lightly pull to
confirm mat is secured using the floor
mat fasteners on a regular basis.
•
ALWAYS REMOVE THE EXISTING FLOOR
MAT FROM THE VEHICLE
before
installing any other floor mat. NEVER
install or stack an additional floor mat on
top of an existing floor mat.
• ONLY install floor mats designed to fit
your vehicle. NEVER install a floor mat
that cannot be properly attached and
secured to your vehicle. If a floor mat
needs to be replaced, only use a FCA
approved floor mat for the specific
make, model, and year of your vehicle.
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WARNING!
• ONLY use the driver’s side floor mat onthe driver’s side floor area. To check for
interference, with the vehicle properly
parked with the engine off, fully depress
the accelerator, the brake, and the
clutch pedal (if present) to check for
interference. If your floor mat interferes
with the operation of any pedal, or is not
secure to the floor, remove the floor mat
from the vehicle and place the floor mat
in your trunk.
• ONLY use the passenger’s side floor mat
on the passenger’s side floor area.
• ALWAYS make sure objects cannot fall or
slide into the driver’s side floor area
when the vehicle is moving. Objects can
become trapped under accelerator,
brake, or clutch pedals and could cause
a loss of vehicle control.
•
NEVER place any objects under the floor
mat (e.g., towels, keys, etc.). These ob-
jects could change the position of the
floor mat and may cause interference with
the accelerator, brake, or clutch pedals.
WARNING!
•If the vehicle carpet has been removed
and re-installed, always properly attach
carpet to the floor and check the floor mat
fasteners are secure to the vehicle carpet.
Fully depress each pedal to check for
interference with the accelerator, brake,
or clutch pedals then re-install the floor
mats.
• It is recommended to only use mild soap
and water to clean your floor mats. After
cleaning, always check your floor mat
has been properly installed and is se-
cured to your vehicle using the floor mat
fasteners by lightly pulling mat.
Periodic Safety Checks You Should Make
Outside The Vehicle
Tires
Examine tires for excessive tread wear and
uneven wear patterns. Check for stones,
nails, glass, or other objects lodged in the
tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks, and bulges. Check the wheel nuts for
tightness. Check the tires (including spare)
for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid
leaks. Also, if gasoline fumes are detected or
if fuel, or brake fluid leaks are suspected. The
cause should be located and corrected imme-
diately.
SAFETY
118

WARNING!
• Never use the PARK position as a sub-stitute for the parking brake. Always ap-
ply the parking brake fully when exiting
the vehicle to guard against vehicle
movement and possible injury or dam-
age.
• When exiting the vehicle, always make
sure the ignition is in the OFF mode,
remove the key fob from the vehicle, and
lock your vehicle.
• 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 transmission
gear selector.
• Do not leave the key fob in or near the
vehicle, (or in a location accessible to
children), and do not leave the ignition
in the ACC or ON/RUN mode. A child
WARNING!
could operate power windows, other con-
trols, or move the vehicle.
• Be sure the parking brake is fully disen-
gaged before driving; failure to do so can
lead to brake failure and a collision.
• Always fully apply the parking brake
when leaving your vehicle, or it may roll
and cause damage or injury. Also be
certain to leave the transmission in
PARK. Failure to do so may allow the
vehicle to roll and cause damage or in-
jury.
• Driving the vehicle with the parking
brake engaged, or repeated use of the
parking brake to slow the vehicle may
cause serious damage to the brake sys-
tem.
Auto Park Brake
The electric park brake can be programmed
to be applied automatically whenever the
vehicle is at a standstill and the automatic
transmission is placed in PARK, or with a
manual transmission, whenever the ignition
is turned “OFF”. Auto Park Brake is enabled and disabled by customer selection through
the customer programmable features section
of the Uconnect Settings.
Any single auto park brake application can be
bypassed by pushing the EPB switch to the
release position while the transmission is
placed in PARK.
SafeHold
SafeHold is a safety feature of the Electric
Park Brake System that will engage the park
brake automatically if the vehicle is left un-
secured while the ignition is in ON/RUN.
For automatic transmissions, the park brake
will automatically engage if all of the follow-
ing conditions are met:
• The vehicle is at a standstill.
• There is no attempt to depress the brake
pedal or accelerator pedal.
• The seat belt is unbuckled.
• The driver door is open.
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CAUTION!
If you skip a gear while downshifting or
downshift at too high of a vehicle speed,
these conditions may cause the engine to
overspeed if too low of a gear is selected
and the clutch pedal is released. Damage
to the clutch and the transmission can
result from skipping a gear while down-
shifting or downshifting at too high of a
vehicle speed even if the clutch pedal is
held pressed (i.e., not released).
AUTOMATIC
TRANSMISSION —
IF EQUIPPED
WARNING!
• It is dangerous to shift out of PARK orNEUTRAL if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle
could accelerate quickly forward or in
reverse. You could lose control of the
WARNING!
vehicle and hit someone or something.
Only shift into gear when the engine is
idling normally and your foot is firmly
pressing the brake pedal.
• Unintended movement of a vehicle
could injure those in or near the vehicle.
As with all vehicles, you should never
exit a vehicle while the engine is run-
ning. Before exiting a vehicle, always
come to a complete stop, then apply the
parking brake, shift the transmission
into PARK, turn the engine OFF, and
remove the key fob. When the ignition is
in the LOCK/OFF (key removal) position,
(or, with Keyless Enter-N-Go, when the
ignition is in the OFF mode) the trans-
mission is locked in PARK, securing the
vehicle against unwanted movement.
• When leaving the vehicle, always make
sure the ignition is in the OFF mode,
remove the key fob from the vehicle, and
lock the vehicle.
•
Never use the PARK position as a substi-
tute for the parking brake. Always apply the
parking brake fully when exiting the ve-
WARNING!
hicle to guard against vehicle movement
and possible injury or damage.
• Your vehicle could move and injure you
and others if it is not in PARK. Check by
trying to move the gear selector out of
PARK with the brake pedal released.
Make sure the transmission is in PARK
before exiting the vehicle.
• 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 transmission
gear selector.
• Do not leave the key fob in or near the
vehicle (or in a location accessible to
children), and do not leave the ignition
(in a vehicle equipped with Keyless
Enter-N-Go) in the ACC or ON/RUN
mode. A child could operate power win-
dows, other controls, or move the ve-
hicle.
STARTING AND OPERATING
128

NOTE:
• You must ensure that the Auto Park Brakefeature is disabled before towing this ve-
hicle, to avoid inadvertent Electric Park
Brake engagement. The Auto Park Brake
feature is enabled or disabled via the cus-
tomer programmable features in the
Uconnect Settings.
• When towing your vehicle, always follow applicable state and provincial laws. Con-
tact state and provincial Highway Safety
offices for additional details.
Recreational Towing — Front-Wheel Drive
(FWD) Models
DO NOT flat tow this vehicle.
Recreational towing (for front-wheel drive
models) is allowed ONLY if the front wheels
are OFF the ground. This may be accom-
plished using a tow dolly or vehicle trailer. If
using a tow dolly, follow this procedure:
1. Properly secure the dolly to the tow ve- hicle, following the dolly manufacturer's
instructions. 2. Drive the front wheels onto the tow dolly.
3. Apply the parking brake. Place automatic
transmission in PARK, or manual trans-
mission in gear. Turn the engine OFF.
4. Properly secure the front wheels to the dolly, following the dolly manufacturer's
instructions.
5. Turn the ignition to the ON/RUN mode, but do not start the engine.
6. Press and hold the brake pedal.
7. Release the parking brake.
8. Turn the ignition OFF, remove the key fob, and release the brake pedal.
CAUTION!
• Towing with the front wheels on theground will cause severe transmission
damage. Damage from improper towing
is not covered under the New Vehicle
Limited Warranty.
CAUTION!
• Ensure that the Electric Park Brake isreleased, and remains released, while
being towed.
Recreational Towing — 4x4 Models
Recreational towing is not allowed.
NOTE:
This vehicle may be towed on a flatbed or
vehicle trailer provided all four wheels are
OFF the ground.
CAUTION!
Towing this vehicle with ANYof its wheels
on the ground can cause severe transmis-
sion and/or power transfer unit damage.
Damage from improper towing is not cov-
ered under the New Vehicle Limited War-
ranty.
STARTING AND OPERATING
158

Bodyside Mounted Back-Up Lamp
1. Open the liftgate.
2. Remove the screws that fasten the body-side mounted lamp housing to the
vehicle.
3. Grasp the tail lamp and pull firmly rear- ward to disengage the lamp from the
vehicle.
4. Disconnect the electrical connector.
5. Twist the socket counterclockwise and re- move from housing.
6. Pull the bulb to remove it from the socket.
7. Replace the bulb and install the socket.
8. Reconnect the electrical connector.
9. Reinstall the bodyside lamp housing and screws.
10. Close the liftgate.
Liftgate Mounted Back-up Lamp
1. Open the liftgate. 2. Use a fiber stick or flat blade screw driver
to pry the lower trim from the liftgate.
3. Once the trim is loose, pull it back expos- ing the trim panel.
4. Using a fiber stick or flat blade screw driver, open the trim panel exposing the
back of the liftgate lamp.
5. Disconnect the electrical connector.
6. Twist the socket counterclockwise and re- move from lamp.
7. Pull the bulb to remove it from the socket.
8. Replace the bulb, reinstall the socket.
9. Connect the electrical connector.
10. Reinstall the trim panel and the lower trim.
11. Close the liftgate.
License Plate Lamp
1. Using a small screwdriver, press inward the locking tab on the side of the lamp
assembly and pull down on the lamp as-
sembly for removal. 2. Pull bulb from socket, replace, and rein-
stall the lamp assembly into place ensur-
ing the locking tab is secure.
Rear Fog Lamp
1. Using a small screwdriver or fiber stick,press the locking tab on the reflex side of
the lamp and pull the lamp assembly out
for removal.
2. Disconnect the electrical connector.
3. Twist the socket counterclockwise and re- move from lamp.
4. Pull the bulb to remove it from the socket.
5. Replace the bulb and twist the socket clockwise to reinstall.
6. Connect the electrical connector.
7. Reinstall the lamp by sliding the hook on the fog lamp side over the locking tab in
the bumper opening and pushing the re-
flex side into the bumper to snap the lamp
assembly back into place.
163