2015 JEEP GRAND CHEROKEE service

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#,orthe#PARKSENSE UNAVAIL-
ABLE SERVICE REQUIRED#message for five seconds.
When the shift lever is moved to Reverse and the system
has detected a faulted condition, the Driver Information
Display (DID) will display a#PARKSENSE UNAVAIL-
ABLE WIPE REAR SENSORS#,#PARKSENSE UNAVAIL-
ABLE WIPE FRONT SENSORS#or#PARKSENSE UN-
AVAILABLE SERVICE REQUIRED#pop up message for
five seconds. After five seconds, a car graphic will be
displayed with#UNAVAILABLE#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 UNAVAILABLE WIPE
REAR SENSORS#,#PARKSENSE UNAVAILABLE WIPE
FRONT SENSORS#,or#PARKSENSE UNAVAILABLE
SERVICE REQUIRED#messages if an object is detected
within the five second pop-up duration. The car 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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 239

•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
instrument 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.
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.
•The vehicle must be driven slowly when using
ParkSense® in order to be able to stop in time
when an obstacle is detected. It is recommended
that the driver looks over his/her shoulder when
using ParkSense®.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 241

INSTRUMENT CLUSTER DESCRIPTIONS
1. Tachometer
Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Seat Belt Reminder Light
When the ignition switch is first turned to the
ON/RUN position, this light will turn on for four
to eight seconds as a bulb check. During the bulb
check, if the driver’s seat belt is unbuckled, a chime will
sound. After the bulb check or when driving, if the driver
or front passenger seat belt remains unbuckled, the Seat
Belt Indicator Light will flash or remain on continuously.
Refer to “Occupant Restraints” in “Things To Know
Before Starting Your Vehicle” for further information.
3. Anti-Lock Brake (ABS) Light
This light monitors the Anti-Lock Brake System
(ABS). The light will turn on when the ignition
switch is turned to the ON/RUN position and
may stay on for as long as four seconds.
If the ABS light remains on or turns on while driving, it
indicates that the Anti-Lock portion of the brake system
is not functioning and that service is required. However,
the conventional brake system will continue to operate
normally if the BRAKE warning light is not on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefits of Anti-Lock
brakes. If the ABS light does not turn on when the
ignition switch is turned to the ON/RUN position, have
the light inspected by an authorized dealer.
4. High Beam Indicator
Indicates that headlights are on high beam.
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5. Front Fog Light Indicator — If Equipped
This indicator will illuminate when the front fog
lights are on.
6. Upper Left Selectable DID
This area of the cluster will display selectable informa-
tion such as compass, outside temperature, etc. For
further information, refer to “Driver Information Display
(DID)” in this section.
7. Turn Signal Indicator
The arrows will flash with the exterior turn
signals when the turn signal lever is operated.
A tone will chime, and a DID message will
appear if either turn signal is left on for more
than 1 mile (1.6 km).
NOTE:If either indicator flashes at a rapid rate, check
for a defective outside light bulb.
8. Speedometer
Indicates vehicle speed.
9. Upper Right Selectable DID
This area of the cluster will display selectable informa-
tion such as compass, outside temperature, etc. For
further information, refer to “Driver Information Display
(DID)” in this section.
10. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of
an onboard diagnostic system called OBD II that
monitors engine and automatic transmission con-
trol systems. The light will illuminate when the key is in
the ON/RUN position before engine start. If the bulb
does not come on when turning the key from OFF to
ON/RUN, have the condition checked promptly.
Certain conditions, poor fuel quality, etc., may illuminate
the light after engine start. The vehicle should be serviced
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UNDERSTANDING YOUR INSTRUMENT PANEL 293

if the light stays on through several of your typical
driving cycles. In most situations, the vehicle will drive
normally and will not require towing.
CAUTION!
Prolonged driving with the Malfunction Indicator
Light (MIL) on could cause damage to the engine
control system. It also could affect fuel economy and
driveability. If the MIL is flashing, severe catalytic
converter damage and power loss will soon occur.
Immediate service is required.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you
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drive slowly or park over flammable substances such
as dry plants, wood, cardboard, etc. This could result
in death or serious injury to the driver, occupants or
others.
11. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
294 UNDERSTANDING YOUR INSTRUMENT PANEL

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” and you hear continuous chimes,
turn the engine off immediately and call an autho-
rized 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
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WARNING!(Continued)
Vehicle”. Follow the warnings under the Cooling
System Pressure Cap paragraph.
12. Brake Warning Light
This 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 reservoir.
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
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UNDERSTANDING YOUR INSTRUMENT PANEL 295

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 capac-
ity 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 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
turning the ignition switch from the OFF position to the
ON/RUN position. The light should illuminate for ap-
proximately two seconds. 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.
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odometer needs to be repaired or serviced, the repair
technician should leave the odometer reading the same
as it was before the repair or service. If she/he cannot do
so, then the odometer must be set at zero, and a sticker
must be placed in the door jamb stating what the mileage
was before the repair or service. It is a good idea for you
to make a record of the odometer reading before the
repair/service, so that you can be sure that it is properly
reset, or that the door jamb sticker is accurate if the
odometer must be reset at zero.
When the appropriate conditions exist, this Driver Infor-
mation Display (DID) messages. Refer to “Driver Infor-
mation Display” of your owners manual for more
information.
16. Selectable DID Menu
This area of the cluster will display the DID selectable
menu. For further information, refer to “Driver Informa-
tion Display (DID)” in this section.
17. Air Bag Warning Light
This light will turn on for four to eight seconds
as a bulb check when the ignition switch is first
turned to the ON/RUN position. If the light is
either not on during starting, stays on, or turns
on while driving, have the system inspected at an autho-
rized dealer as soon as possible. Refer to “Occupant
Restraints” in “Things To Know Before Starting Your
Vehicle” of your owners manual for further information.
18. Vehicle Security Light
This light will flash rapidly for approximately
15 seconds when the vehicle theft alarm is
arming. The light will flash at a slower speed
continuously after the alarm is set. The security
light will also come on for about three seconds when the
ignition is first turned on.
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