2016 JEEP GRAND CHEROKEE service

•When you turn ParkSense OFF, the instrument cluster
will display “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 DID will
display “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. •
Use the ParkSense switch to turn the ParkSense system
OFF if objects such as bicycle carriers, trailer hitches,
etc. are placed within 12 in (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 be displayed in
the DID.
• 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.
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
(Continued)
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 231

ParkSense will retain its last known configuration state
through ignition cycles.
Enabling And Disabling ParkSense
ParkSense can be enabled and disabled with the
ParkSense switch.When the ParkSense switch is pushed to dis-
able the system, the instrument cluster will
display the “PARKSENSE OFF” message for
approximately five seconds. Refer to “Driver
Information Display (DID)” in “Understanding Your
Instrument Panel” for further information. When the
gear selector is moved to REVERSE and the system is
disabled, the DID will display 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 the system requires service, the
ParkSense switch LED will blink momentarily, and then
the LED will be ON.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 the
PARKSENSE UNAVAILABLE WIPE REAR
SENSORS, PARKSENSE UNAVAILABLE WIPE
FRONT SENSORS,orthePARKSENSE UNAVAIL-
ABLE SERVICE REQUIRED message for five seconds.
When the gear selector is moved to Reverse and the
system has detected a faulted condition, the Driver
Information Display (DID) 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
242 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

vehicle graphic will be displayed withUNAVAILABLE
at 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 UN-
AVAILABLE WIPE REAR SENSORS, PARKSENSE UN-
AVAILABLE WIPE FRONT SENSORS,orPARKSENSE
UNAVAILABLE SERVICE REQUIRED messages 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 “Driver Information
Display (DID)” for further information.
If PARKSENSE UNAVAILABLE WIPE REAR SENSORS
or PARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORS appears in the Driver Information Display (DID)
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 RE-
QUIRED message appears in the DID, 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 dam-
age the sensors.
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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 243

•Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
• When you turn ParkSense off, the instrument cluster
will display “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 will display “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 in (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 be displayed in the instru-
ment cluster.
• 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.
244 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

1. Speedometer•Indicates vehicle speed.
2. Tachometer •Indicates the engine speed in revolutions per minute
(RPM x 1000).
3. Temperature Gauge •The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge pointer will likely indicate a higher tem-
perature when driving in hot weather or up moun-
tain grades. It should not be allowed to exceed the
upper limits of the normal operating range.CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge reads
“H” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on the “H”, turn the engine off immediately
and call an authorized dealer for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 291

Air Bag Warning Light
Red TelltaleLight What It Means
Air Bag Warning Light
This light will turn on for four to eight seconds as a bulb check when the ignition is palaced
in the ON/RUN position. 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. This
light will illuminate with a single chime when a fault with the Air Bag Warning Light has
been detected, it will stay on until the fault is cleared. If the light comes on intermittently or
remains on while driving, have an authorized dealer service the vehicle immediately.
294 UNDERSTANDING YOUR INSTRUMENT PANEL

The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level condi-
tions. The vehicle should have service performed, and
the brake fluid level checked.
If brake failure is indicated, immediate repair is neces-
sary.
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 Electronic 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
placing the ignition in the position ON/RUN position.
The light should illuminate for approximately two sec-
onds. The light should then turn off unless the parking
brake is applied or a brake fault is detected. If the light
does not illuminate, have the light inspected by an
authorized dealer.
The light also will turn on when the parking brake is
applied with the ignition is placed 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.
296 UNDERSTANDING YOUR INSTRUMENT PANEL

Electronic Throttle Control (ETC) Warning Light
Red TelltaleLight What It Means
Electronic Throttle Control (ETC) Warning Light
This light informs you of a problem with the Electronic Throttle Control (ETC) system. If a
problem is detected while the engine is running, the light will either stay on or flash de-
pending on the nature of the problem. Cycle the ignition key when the vehicle is safely and
completely stopped and the transmission is placed in the PARK position. The light should
turn off. If the light remains on with the engine running, your vehicle will usually be driv-
able; however, see an authorized dealer for service as soon as possible.
If the light continues to flash when the engine is running, immediate service is required and
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 ignition is first turned to ON/
RUN 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.
300 UNDERSTANDING YOUR INSTRUMENT PANEL