2013 JEEP GRAND CHEROKEE maintenance

NOTE:If the ACC “Clean Radar Sensor In Front Of
Vehicle” warning is active Normal (Fixed Speed) Cruise
Control is still available. For additional information refer
to “Normal (Fixed Speed) Cruise Control Mode” in this
section.
If weather conditions are not a factor, the driver should
examine the sensor. It may require cleaning or removal of
an obstruction. The sensor is located in the center of the
vehicle behind the lower grille.
To keep the ACC System operating properly, it is impor-
tant to note the following maintenance items:
•Always keep the sensor clean. Carefully wipe the
sensor lens with a soft cloth. Be cautious not to damage
the sensor lens.
•Do not remove any screws from the sensor. Doing so
could cause an ACC system malfunction or failure and
require a sensor realignment.•If the sensor is damaged due to a collision, see your
authorized dealer for service.
•Do not attach or install any accessories near the sensor,
including transparent material or aftermarket grilles.
Doing so could cause an ACC system failure or
malfunction.
When the condition that deactivated the system is no
longer present, the system will return to the “Adaptive
Cruise Control Off” state and will resume function by
simply reactivating it.
NOTE:
•If the “Clean Radar Sensor In Front Of Vehicle”
message occurs frequently (e.g. more than once on
every trip) without any snow, rain, mud, or other
obstruction, have the radar sensor realigned at your
authorized dealer.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 233

Wind Buffeting
Wind buffeting can be described as the perception of
pressure on the ears or a helicopter-type sound in the
ears. Your vehicle may exhibit wind buffeting with the
windows down, or the sunroof (if equipped) in certain
open or partially open positions. This is a normal occur-
rence and can be minimized. If the buffeting occurs with
the rear windows open, open the front and rear windows
together to minimize the buffeting. If the buffeting occurs
with the sunroof open, adjust the sunroof opening to
minimize the buffeting or open any window.
Sunroof Maintenance
Use only a nonabrasive cleaner and a soft cloth to clean
the glass panel.
Ignition OFF Operation
The power sunroof switches remain active for up to
approximately ten minutes after the ignition switch has
been turned OFF. Opening either front door will cancel
this feature. The time is programmable. Refer to “Elec-
tronic Vehicle Information Center (EVIC)/Personal Set-
tings (Customer-Programmable Features)” in “Under-
standing Your Instrument Panel” for further information.
COMMANDVIEW® SUNROOF WITH POWER
SHADE — IF EQUIPPED
The CommandView® sunroof switch is located to the left
between the sun visors on the overhead console.
The power shade switch is located to the right between
the sun visors on the overhead console.
272 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Wind Buffeting
Wind buffeting can be described as the perception of
pressure on the ears or a helicopter-type sound in the
ears. Your vehicle may exhibit wind buffeting with the
windows down, or the sunroof (if equipped) in certain
open or partially open positions. This is a normal occur-
rence and can be minimized. If the buffeting occurs with
the rear windows open, open the front and rear windows
together to minimize the buffeting. If the buffeting occurs
with the sunroof open, adjust the sunroof opening to
minimize the buffeting or open any window.
Sunroof Maintenance
Use only a non-abrasive cleaner and a soft cloth to clean
the glass panel.
Ignition OFF Operation
The power sunroof switches can be programmed to
remain active for up to approximately ten minutes after
the ignition switch has been turned OFF. Refer to “Elec-
tronic Vehicle Information Center (EVIC)/Customer-
Programmable Features (System Setup)” in “Under-
standing Your Instrument Panel” for further information.
NOTE:Opening either front door will cancel this fea-
ture.
Sunroof Fully Closed
Press the switch forward and release to ensure that the
sunroof is fully closed.
276 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

▫Unwired® Stereo Headphone Lifetime Limited
Warranty...........................397
▫System Information....................398
STEERING WHEEL AUDIO CONTROLS — IF
EQUIPPED...........................415
▫Radio Operation......................416
▫CD Player...........................416
CD/DVD DISC MAINTENANCE...........417RADIO OPERATION AND MOBILE PHONES . .417
CLIMATE CONTROLS...................418
▫Dual-Zone Manual Heating And
Air Conditioning.....................418
▫Dual-Zone Automatic Temperature
Control (ATC) — If Equipped............422
▫Operating Tips.......................429
300 UNDERSTANDING YOUR INSTRUMENT PANEL

As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to
overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more
tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
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UNDERSTANDING YOUR INSTRUMENT PANEL 307

light comes on, stop the vehicle and run the engine at idle
or faster, with the transmission in NEUTRAL until the
light goes off.
CAUTION!
Continuous driving with the Transmission Tempera-
ture Warning Light illuminated will eventually cause
severe transmission damage or transmission failure.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is illumi-
nated you could cause the fluid to boil over, come in
contact with hot engine or exhaust components and
cause a fire.
Engine Oil Change Indicator System
Oil Change Due
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Due” message will
flash in the EVIC display for approximately 10 seconds
after a single chime has sounded, to indicate the next
scheduled oil change interval. The engine oil change
indicator system is duty cycle based, which means the
engine oil change interval may fluctuate, dependent
upon your personal driving style.
Unless reset, this message will continue to display each
time you turn the ignition switch to the ON/RUN
position or cycle the ignition to the ON/RUN position if
equipped with Keyless Enter-N-Go™. To turn off the
message temporarily, press and release the MENU but-
ton. To reset the oil change indicator system (after
performing the scheduled maintenance) refer to the fol-
lowing procedure.
328 UNDERSTANDING YOUR INSTRUMENT PANEL

CD/DVD DISC MAINTENANCE
To keep a CD/DVD in good condition, take the following
precautions:
1. Handle the disc by its edge; avoid touching the
surface.
2. If the disc is stained, clean the surface with a soft cloth,
wiping from center to edge.
3. Do not apply paper or tape to the disc; avoid scratch-
ing the disc.
4. Do not use solvents such as benzene, thinner, cleaners,
or anti-static sprays.
5. Store the disc in its case after playing.
6. Do not expose the disc to direct sunlight.
7. Do not store the disc where temperatures may become
too high.NOTE:If you experience difficulty in playing a particu-
lar disc, it may be damaged (i.e., scratched, reflective
coating removed, a hair, moisture or dew on the disc)
oversized, or have protection encoding. Try a known
good disc before considering disc player service.
RADIO OPERATION AND MOBILE PHONES
Under certain conditions, the mobile phone being on in
your vehicle can cause erratic or noisy performance from
your radio. This condition may be lessened or eliminated
by relocating the mobile phone antenna. This condition is
not harmful to the radio. If your radio performance does
not satisfactorily “clear” by the repositioning of the
antenna, it is recommended that the radio volume be
turned down or off during mobile phone operation when
not using Uconnect® (if equipped).4
UNDERSTANDING YOUR INSTRUMENT PANEL 417

▫Reformulated Gasoline.................542
▫Gasoline/Oxygenate Blends..............542
▫E-85 Usage In Non-Flex Fuel Vehicles.......542
▫MMT In Gasoline.....................543
▫Materials Added To Fuel................544
▫Fuel System Cautions...................544
▫Carbon Monoxide Warnings.............545
FLEXIBLE FUEL (3.6L ENGINE ONLY) — IF
EQUIPPED...........................546
▫E-85 General Information...............546
▫Ethanol Fuel (E-85)....................547
▫Fuel Requirements....................547
▫Selection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles.......548▫Starting............................549
▫Cruising Range.......................549
▫Replacement Parts....................549
▫Maintenance........................549
ADDING FUEL........................550
▫Fuel Filler Cap (Gas Cap)...............550
▫Loose Fuel Filler Cap Message............553
VEHICLE LOADING....................553
▫Certification Label....................553
TRAILER TOWING.....................556
▫Common Towing Definitions.............556
▫Trailer Hitch Classification...............561
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STARTING AND OPERATING 437