2010 JEEP GRAND CHEROKEE heating

Do not run the engine in a closed garage or in confined
areas any longer than needed to move your vehicle in or
out of the area.
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.
If you are required to drive with the trunk/liftgate open,
make sure that all windows are closed and the climate
control BLOWER switch is set at high speed. DO NOT
use the recirculation mode.
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 isdamaged, have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned 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 Checks You Should Make Inside the
Vehicle
Seat Belts
Inspect the belt system periodically, checking for cuts,
frays, and loose parts. Damaged parts must be replaced
immediately. Do not disassemble or modify the system.
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 webbing, etc.). If there is any question regarding belt
or retractor condition, replace the belt.
72 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Driving a vehicle with the head restraints removed or
improperly adjusted could cause serious injury or
death in the event of a collision. The head restraints
should always be checked prior to operating the
vehicle and never adjusted while the vehicle is in
motion. Always adjust the head restraints when the
vehicle is in PARK.
Front Heated Seats — If Equipped
The front driver and passenger seats are heated. The
controls for each heater are located near the bottom
center of the instrument panel (below the heater/air
conditioning controls). The heaters provide the same
average heat level for both the cushion and the seatback.
After turning the ignition ON, you can choose from High,
Low or Off heat settings. Amber indicator lights in eachswitch indicate the level of heat in use. Two indicator
lights will illuminate for High, one for Low and none for
Off.
Press the switch once to select High-level heat-
ing. Press the switch a second time to select
Low-level heating. Press the switch a third time
to shut the heating elements Off.
When the High-level setting is selected, the heater will
provide a boosted heat level during the first four minutes
of operation. Then, the heat output will drop to the
normal High-level. If the High-level setting is selected,
the system will automatically switch to Low-level after
approximately 30 minutes of continuous operation. At
that time, the number of illuminated LEDs changes from
two to one, indicating the change. The Low-level setting
will turn Off automatically after approximately 30 min-
utes.
88 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:Once a heat setting is selected, heat will be felt
within two to five minutes.
WARNING!
•Persons who are unable to feel pain to the skin
because of advanced age, chronic illness, diabetes,
spinal cord injury, medication, alcohol use, ex-
haustion or other physical condition must exercise
care when using the seat heater. It may cause burns
even at low temperatures, especially if used for
long periods of time.
•Do not place anything on the seat that insulates
against heat, such as a blanket or cushion. This
may cause the seat heater to overheat. Sitting in a
seat that has been overheated could cause serious
burns due to the increased surface temperature of
the seat.
CAUTION!
Repeated overheating of the seat could damage the
heating element and/or degrade the material of the
seat.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 89

Rear Heated Seats — If Equipped
On vehicles equipped with rear heated seats, the seats
closest to the doors are heated. The controls for these
seats are located on the rear of the center console.
After turning the ignition ON, you can choose from High,
Low or Off heat settings. Amber indicator lights in eachswitch indicate the level of heat in use. Two indicator
lights will illuminate for High, one for Low and none for
Off.
Press the switch once to select High-level heat-
ing. Press the switch a second time to select
Low-level heating. Press the switch a third time
to shut the heating elements Off.
When the High-level setting is selected, the heater will
provide a boosted heat level during the first four minutes
of operation. Then, the heat output will drop to the
normal High-level. If the High-level setting is selected,
the system will automatically switch to Low-level after
approximately 30 minutes of continuous operation. At
that time, the number of illuminated LEDs changes from
two to one, indicating the change. The Low-level setting
will turn Off automatically after approximately 30 min-
utes.
Rear Heated Seat Switches
90 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:Once a heat setting is selected, heat will be felt
within two to five minutes.
WARNING!
•Persons who are unable to feel pain to the skin
because of advanced age, chronic illness, diabetes,
spinal cord injury, medication, alcohol use, ex-
haustion or other physical condition must exercise
care when using the seat heater. It may cause burns
even at low temperatures, especially if used for
long periods of time.
•Do not place anything on the seat that insulates
against heat, such as a blanket or cushion. This
may cause the seat heater to overheat. Sitting in a
seat that has been overheated could cause serious
burns due to the increased surface temperature of
the seat.
CAUTION!
Repeated overheating of the seat could damage the
heating element and/or degrade the material of the
seat.
60/40 Split Rear Seat
To Lower Rear Seat
Either side of the rear seat can be lowered to allow for
extended cargo space and still maintain some rear seating
room.
NOTE: Be sure that the front seats are fully upright and
positioned forward. This will allow the rear seatback to
fold down easily.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 91

7. Return to the vehicle and press the programmed
HomeLinkbutton twice (holding the button for two
seconds each time). If the device is plugged in and
activates, programming is complete.
If the device does not activate, press the button a third
time (for two seconds) to complete the training.
If you have any problems or require assistance, please
call toll-free 1–800–355–3515 or, on the Internet at
www.HomeLink.com for information or assistance.
To program the remaining two HomeLink buttons,
repeat each step for each remaining button. DO NOT
erase the channels.
Gate Operator/Canadian Programming
Canadian radio-frequency laws require transmitter sig-
nals to “time-out” (or quit) after several seconds of
transmission – which may not be long enough for
HomeLink to pick up the signal during programming. Similar to this Canadian law, some U.S. gate operators are
designed to “time-out” in the same manner.
It may be helpful to unplug the device during the cycling
process to prevent possible overheating of the garage
door or gate motor.
If you are having difficulties programming a garage door
opener or a gate operator, replace “Programming
HomeLink” Step 3 with the following:
3. Continue to press and hold the HomeLink
button,
while you press and release (“cycle”), your handheld
transmitter every two seconds until HomeLink has
successfully accepted the frequency signal. The EVIC
display will change from “CHANNEL # TRAINING” to
“CHANNEL # TRAINED.”
If you unplugged the device for training, plug it back in
at this time.
132 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CAUTION!
Failure to follow these cautions can cause damage to
the heating elements:
•Use care when washing the inside of the rear
window. Do not use abrasive window cleaners on
the interior surface of the window. Use a soft cloth
and a mild washing solution, wiping parallel to
the heating elements. Labels can be peeled off
after soaking with warm water.
•Do not use scrapers, sharp instruments, or abra-
sive window cleaners on the interior surface of the
window.
•Keep all objects a safe distance from the window.
150 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:The numbers on the temperature dial represent
a comfort setting when the Mode knob is set to AUTO,
and not the actual air temperature.
Turn the mode control (on the right) knob to AUTO, and
then turn the blower control (on the left) knob to either
LO AUTO or HI AUTO. The LO AUTO position should
be used for front seat occupants only. The HI AUTO
position should be used when more airflow is desired, or
when rear seat occupants are present. Dial in the comfort
setting you would like the system to maintain by rotating
the driver’s or passenger’s control knob. Once the com-
fort level is selected, the system will maintain that level
automatically using the heating system. Should the de-
sired comfort level require air conditioning, the system
will automatically make the adjustment. You will experience the greatest efficiency by simply
allowing the system to function automatically. Selecting
the OFF (O) position on the blower control knob stops the
system completely.
NOTE:
The temperature setting can be adjusted at any
time without affecting automatic control operation. How-
ever, if the driver and/or passenger temperature knobs
are set to the full hot or full cold positions, the air
temperature out of the ducts will be full hot or full cold
respectively. With the temperature setting in these posi-
tions, the system does not attempt automatic comfort
control.
The air conditioning in this system is au-
tomatic. Pressing this button while in
AUTO mode will cause the LED to flash
three times and remain off. This indicates
that the system is in AUTO and requesting the air
conditioning is not necessary.
Air
Conditioning
226 UNDERSTANDING YOUR INSTRUMENT PANEL