2017 JEEP CHEROKEE service

Stationary Objects And Vehicles
ACC does not react to stationary objects and stationary
vehicles. For example, ACC will not react in situations
where the vehicle you are following exits your lane and the
vehicle ahead is stopped in your lane. Always be attentive
and ready to apply the brakes if necessary.
General Information
This vehicle has systems that operate on radio frequency that
comply with Part 15 of the Federal Communications Com-
mission (FCC) rules and with Industry Canada Standards
RSS- GEN/210/220/310.
Operation is subject to the following two conditions:
1. The device may not cause harmful interference.
2. The device must accept any interference received, in-cluding interference that may cause undesired operation
of the device.
Changes or modifications to any of these systems by other
than an authorized service facility could void authorization
to use this equipment.
Stationary Object And Stationary Vehicle Example
310 STARTING AND OPERATING

Enabling And Disabling ParkSense
ParkSense can be enabled and disabled with the ParkSense
switch, located on the switch panel below the Uconnect
display.
When the ParkSense switch is pushed to disable the
system, the instrument cluster display will show the
“PARKSENSE OFF” message for approximately five sec-
onds. Refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information.
When the gear selector is moved to REVERSE and thesystem is disabled, the instrument cluster display will
show the “PARKSENSE OFF” message for as long as the
vehicle is in REVERSE.
The ParkSense switch LED will be ON when ParkSense is
disabled or requires service. The ParkSense switch LED
will be off when the system is enabled. If the ParkSense
switch is pushed, and requires service, the ParkSense
switch LED will blink momentarily, and then the LED will
be on.
Service The ParkSense Rear Park Assist System
During vehicle start up, when the ParkSense Rear Park
Assist System has detected a faulted condition, the instru-
ment cluster display will actuate a single chime, once per
ignition cycle, and it will display the “PARKSENSE UN-
AVAILABLE WIPE REAR SENSORS” or the “PARKSENSE
UNAVAILABLE SERVICE REQUIRED” message. Refer to
“Instrument Cluster Display”. When the gear selector is
moved to REVERSE and the system has detected a faulted
condition, the instrument cluster display will show the
PARKSENSE UNAVAILABLE WIPE REAR SENSORS
or
PARKSENSE UNAVAILABLE SERVICE REQUIRED mes-
sage for as long as the vehicle is in REVERSE. Under this
condition, ParkSense will not operate.
ParkSense Switch
318 STARTING AND OPERATING

If “PARKSENSE UNAVAILABLE WIPE REAR SENSORS”
appears in the instrument cluster display, make sure the
outer surface and the underside of the rear fascia/bumper
is clean and clear of snow, ice, mud, dirt or other obstruc-
tion and then cycle the ignition. If the message continues to
appear, see an authorized dealer.
If “PARKSENSE UNAVAILABLE SERVICE REQUIRED”
appears in the instrument cluster display, see an autho-
rized dealer.
Cleaning The ParkSense System
Clean the ParkSense sensors with water, car wash soap and
a soft cloth. Do not use rough or hard cloths. Do not scratch
or poke the sensors. Otherwise, you could damage the
sensors.
ParkSense System Usage Precautions
•Ensure that the rear bumper is free of snow, ice, mud,
dirt and debris to keep the ParkSense system operating
properly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense. •
When you turn ParkSense off, the instrument cluster
display will read “PARKSENSE OFF”. Furthermore,
once you turn ParkSense off, it remains off until you turn
it on again, even if you cycle the ignition.
• When you move the gear selector to the REVERSE
position and ParkSense is turned off, the instrument
cluster display will show a “PARKSENSE OFF” message
for as long as the vehicle is in REVERSE.
• ParkSense, when on, will reduce the volume of the radio
when it is sounding a tone.
• Clean the ParkSense sensors regularly, taking care not to
scratch or damage them. The sensors must not be
covered with ice, snow, slush, mud, dirt or debris.
Failure to do so can result in the system not working
properly. The ParkSense system might not detect an
obstacle behind the fascia/bumper, or it could provide a
false indication that an obstacle is behind the fascia/
bumper.
6
STARTING AND OPERATING 319

•Use the ParkSense switch to turn the ParkSense system
off if objects such as bicycle carriers, trailer hitches, etc.
are placed within 12 inches (30 cm) from the rear
fascia/bumper. Failure to do so can result in the system
misinterpreting a close object as a sensor problem,
causing the “PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to appear in the instrument clus-
ter display.
• ParkSense should be disabled when the liftgate is in the
open position and the vehicle is in REVERSE. An open
liftgate could provide a false indication that an obstacle
is behind the vehicle.
WARNING!
• Drivers must be careful when backing up even when
using ParkSense. Always check carefully behind
your vehicle, look behind you, and be sure to check
for pedestrians, animals, other vehicles, obstructions,
and blind spots before backing up. You are respon-
sible for safety and must continue to pay attention to
your surroundings. Failure to do so can result in
serious injury or death.
(Continued)
WARNING! (Continued)
•Before using ParkSense, it is strongly recommended
that the ball mount and hitch ball assembly is
disconnected from the vehicle when the vehicle is
not used for towing. Failure to do so can result in
injury or damage to vehicles or obstacles because the
hitch ball will be much closer to the obstacle than the
rear fascia when the loudspeaker sounds the con-
tinuous tone. Also, the sensors could detect the ball
mount and hitch ball assembly, depending on its size
and shape, giving a false indication that an obstacle
is behind the vehicle.
CAUTION!
• ParkSense is only a parking aid and it is unable to
recognize every obstacle, including small obstacles.
Parking curbs might be temporarily detected or not
detected at all. Obstacles located above or below the
sensors will not be detected when they are in close
proximity.
(Continued)
320 STARTING AND OPERATING

Enabling And Disabling ParkSense
ParkSense can be enabled and disabled with the ParkSense
switch, located on the switch panel below the Uconnect
display.
When the ParkSense switch is pushed to disable the system,
the instrument cluster display will show the “PARKSENSE
OFF” message for approximately five seconds. Refer to
“Instrument Cluster Display” in “Getting To Know Your
Instrument Panel” for further information. When the gear
selector is moved to REVERSE and the system is disabled,
the instrument cluster display will show the “PARKSENSE
OFF” message for as long as the vehicle is in REVERSE.
The ParkSense switch LED will be on when ParkSense is
disabled or requires service. The ParkSense switch LED
will be off when the system is enabled. If the ParkSense
switch is pushed, and requires service, the ParkSense
switch LED will blink momentarily, and then the LED will
be on.
ParkSense Switch
330 STARTING AND OPERATING

Service The ParkSense Park Assist System
During vehicle start up, when the ParkSense System has
detected a faulted condition, the instrument cluster will
actuate a single chime, once per ignition cycle, and it will
display thePARKSENSE UNAVAILABLE WIPE REAR SEN-
SORS, PARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORS,orthePARKSENSE UNAVAILABLE SERVICE RE-
QUIRED message for five seconds. When the gear selector is
moved to Reverse and the system has detected a faulted
condition, the instrument cluster display will display a
PARKSENSE UNAVAILABLE WIPE REAR SENSORS ,
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS or
PARKSENSE UNAVAILABLE SERVICE REQUIRED pop up
message for five seconds. After five seconds, a vehicle graphic
will be displayed with UNAVAILABLEat either the front or
rear sensor location depending on where the fault is detected.
The system will continue to provide arc alerts for the side that
is functioning properly. These arc alerts will interrupt the
PARKSENSE UNAVAILABLE WIPE REAR SENSORS ,
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS ,or
PARKSENSE UNAVAILABLE SERVICE REQUIRED mes-
sages if an object is detected within the five second pop-up duration. The vehicle graphic will remain displayed for as
long as the vehicle is in REVERSE. Refer to “Instrument
Cluster Display” for further information.
If
PARKSENSE UNAVAILABLE WIPE REAR SENSORS or
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS ap-
pears in the instrument cluster display make sure the outer
surface and the underside of the rear fascia/bumper and/or
front fascia/bumper is clean and clear of snow, ice, mud, dirt
or other obstruction and then cycle the ignition. If the
message continues to appear see an authorized dealer.
If the PARKSENSE UNAVAILABLE SERVICE REQUIRED 
message appears in the instrument cluster display, see an
authorized dealer.
Cleaning The ParkSense System
Clean the ParkSense sensors with water, car wash soap and
a soft cloth. Do not use rough or hard cloths. Do not scratch
or poke the sensors. Otherwise, you could damage the
sensors.
6
STARTING AND OPERATING 331

ParkSense System Usage Precautions
NOTE:
•Ensure that the front and rear bumper are free of snow,
ice, mud, dirt and debris to keep the ParkSense system
operating properly.
• Construction equipment, large trucks, and other vibra-
tions could affect the performance of ParkSense.
• When you turn ParkSense off, the instrument cluster
display will read “PARKSENSE OFF.” Furthermore,
once you turn ParkSense off, it remains off until you turn
it on again, even if you cycle the ignition key.
• When you move the gear selector to the REVERSE
position and ParkSense is turned off, the instrument
cluster display will read “PARKSENSE OFF” for as long
as the vehicle is in REVERSE.
• ParkSense, when on, will reduce the volume of the radio
when it is sounding a tone.
• Clean the ParkSense sensors regularly, taking care not to
scratch or damage them. The sensors must not be
covered with ice, snow, slush, mud, dirt or debris.
Failure to do so can result in the system not working
properly. The ParkSense system might not detect an obstacle behind or in front of the fascia/bumper, or it
could provide a false indication that an obstacle is
behind or in front of the fascia/bumper.
• Use the ParkSense switch to turn the ParkSense system
off if objects such as bicycle carriers, trailer hitches, etc.
are placed within 12 inches (30 cm) from the rear
fascia/bumper. Failure to do so can result in the system
misinterpreting a close object as a sensor problem,
causing the “PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to appear in the instrument clus-
ter display.
• ParkSense should be disabled when the liftgate is in the
open position. An opened liftgate could provide a false
indication that an obstacle is behind the vehicle.
• There may be a delay in the object detection rate if the
object is moving. This will cause the automatic braking
application to be delayed.
332 STARTING AND OPERATING

Traction Downhill
Shift the transmission into a low gear and the 4WD System
to 4WD LOW range or Select Hill Descent Control if
equipped (refer toSafety Featuresin the “Safety” section
for further information). Let the vehicle go slowly down
the hill with all four wheels turning against engine com-
pression drag. This will permit you to control the vehicle
speed and direction.
When descending mountains or hills, repeated braking can
cause brake fade with loss of braking control. Avoid
repeated heavy braking by downshifting the transmission
whenever possible.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage.
• Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
• Inspect the radiator for mud and debris and clean as
required. •
Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
• Check for accumulations of plants or brush. These things
could be a fire hazard. They might hide damage to fuel
lines, brake hoses, axle pinion seals, and propeller shafts.
• After extended operation in mud, sand, water, or similar
dirty conditions, have the radiator, fan, brake rotors,
wheels, brake linings, and axle yokes inspected and
cleaned as soon as possible.
WARNING!
Abrasive material in any part of the braking system
may cause excessive wear or unpredictable braking
performance. Full braking power may not be available
to prevent a collision. If you have been operating your
vehicle in dirty conditions, inspect and clean the
braking components as soon as possible.
• Impacted material can cause wheel imbalance. Freeing
the wheels of impacted material will likely rectify im-
balance condition.
388 STARTING AND OPERATING