2012 JEEP GRAND CHEROKEE Owner handbook (in English)

CLIMATE CONTROLSThe air conditioning and heating system is
designed to make you comfortable in all types
of weather.
Dual-Zone Automatic Temperature
Control (ATC) — If Equipped
•The Automatic Temperature Control (ATC)
allows both driver and front passenger seat
occupants to select individual comfort set-
tings.
• When occupants in the vehicle select the
AUTO mode operation, a comfort tempera-
ture can be set by using the temperature up
and down buttons, and the auto blower
operation will be set automatically.
• The system provides set-and-forget opera-
tion for optimum comfort and convenience.
• The system can be controlled manually, if
desired.
The ATC system automatically maintains the
interior comfort level desired by the driver and
passenger. 1. A/C Button
Press and release to change the current Air
Conditioning (A/C) setting, the indicator illumi-
nates when A/C is ON. Performing this function
will cause the ATC to switch into manual mode.
2. Recirculation Control Button
Press and release to change the current set-
ting, the indicator illuminates when ON.
3. Left Front Seat Occupant Temperature
Display
This display shows the temperature setting for
the left front seat occupant.4. Mode Display
This display shows the current Mode selection
(Panel, Bi-Level, Floor, Mix).
5. Blower Control Display
This display shows the current Blower speed
selection.
6. Right Front Seat Occupant Temperature
Display
This display shows the temperature setting for
the right front seat occupant.
7. Front Defrost Button
Press and release to change the current set-
ting, the indicator illuminates when ON. Per-
forming this function will cause the ATC to
switch into manual mode. The blower will en-
gage immediately if the Defrost mode is se-
lected.
8. Passenger Temperature Control Up
Button
Provides the passenger with independent tem-
perature control. Push the button for warmer
temperature settings.
Automatic Temperature Control (ATC) Panel
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9. Passenger Temperature Control Down
Button
Provides the passenger with independent tem-
perature control. Push the button for cooler
temperature settings.
10. Auto Temperature Control Button
Controls airflow temperature, distribution, vol-
ume, and the amount of air recirculation auto-
matically. Press and release to select. Refer to
“Automatic Operation” for more information.
Performing this function will cause the ATC to
switch between manual mode and automatic
modes.
11. Blower Control
There are seven blower speeds, the blower
speed increases as you move the control to the
right from the lowest blower setting. Performing
this function will cause the ATC to switch into
manual mode.
12. Climate Control ON/OFF Button
Press and release this button to turn the Cli-
mate Control OFF13. Mode Control Button
Press and release to select between Modes
(Panel, Bi-Level, Floor, Mix). Performing this
function will cause the ATC to switch into
manual mode.
14. SYNC Button
Press and release to control the temperature
setting for both zones from the driver tempera-
ture control.
15. Driver Temperature Control Down
Button
Provides the driver with independent tempera-
ture control. Push the button for cooler tem-
perature settings.
16. Driver Temperature Control Up Button
Provides the driver with independent tempera-
ture control. Push the button for warmer tem-
perature settings.
Automatic Operation
1. Press the AUTO button on the Automatic
Temperature Control (ATC) Panel.
2. Next, adjust the temperature you would like
the system to maintain by adjusting the driver
and front passenger temperature control but-
tons. Once the desired temperature is dis-
played, the system will achieve and automati-
cally maintain that comfort level.
3. When the system is set up for your comfort
level, it is not necessary to change the settings.
You will experience the greatest efficiency by
simply allowing the system to function auto-
matically.
NOTE:
•
It is not necessary to move the tempera-
ture settings for cold or hot vehicles. The
system automatically adjusts the tem-
perature, mode and fan speed to provide
comfort as quickly as possible.
• The temperature can be displayed in U.S.
or Metric units by selecting the US/M
customer-programmable feature. Refer to
the “Electronic Vehicle Information Cen-
ter (EVIC) — Customer-Programmable
Features (SETUP)” in this section of the
manual.
206

To provide you with maximum comfort in the
Automatic mode, during cold start-ups the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
Manual Operation
This system offers a full complement of manual
override features.
NOTE:
Each of these features operate indepen-
dently from each other. If any one feature is
controlled manually, temperature control
will continue to operate automatically.There are seven fixed
blower speeds. Use
the outer dial control
to regulate the amount
of air forced through
the system in any
mode you select. The
blower speed in-
creases as you move
the control clockwise
and decreases when you move the control
counter-clockwise. The blower fan speed can be set to any fixed
speed by adjusting the blower control outer
dial. The fan will now operate at a fixed speed
until additional speeds are selected. This al-
lows the front occupants to control the volume
of air circulated in the vehicle and cancel the
Auto mode.
The operator can also select the direction of the
airflow by selecting one of the following posi-
tions.
Panel Mode
Air comes from the outlets in the instru-
ment panel. Each of these outlets can be
individually adjusted to direct the flow of
air. The air vanes of the center outlets and
outboard outlets can be moved up and down or
side to side to regulate airflow direction. There
is a shut off wheel located below the air vanes
to shut off or adjust the amount of airflow from
these outlets.
Bi-Level Mode Air comes from the instrument panel
outlets, floor outlets and defrost outlets. NOTE:
In many temperature positions, the BI-
LEVEL mode is designed to provide cooler
air out of the panel outlets and warmer air
from the floor outlets.
Floor Mode
Air comes from the floor outlets. A slight
amount of air is directed through the
defrost and side window demister out-
lets.
Mix Mode Air comes from the floor, defrost and
side window demist outlets. This mode
works best in cold or snowy conditions.
It allows you to stay comfortable while
keeping the windshield clear.
Defrost Mode Air comes from the windshield and side
window demist outlets. Use Defrost
mode with maximum temperature set-
tings for best windshield and side window
defrosting. When the defrost mode is selected,
the blower will automatically default to medium-
high unless the blower is controlled manually.
207

NOTE:
While operating in the other modes, the
system will not automatically sense the
presence of fog, mist or ice on the wind-
shield. Defrost mode must be manually se-
lected to clear the windshield and side
glass.
Air Conditioning (A/C)
The Air Conditioning (A/C) button allows the
operator to manually activate or deactivate the
air conditioning system. When in A/C mode and
the ATC is set to a cool temperature, dehumidi-
fied air flows through the air outlets. If Economy
mode is desired, press the A/C button to turn
off the A/C mode in the ATC display and
deactivate the A/C system.
NOTE:
•If the system is in Mix, Floor or Defrost
Mode, the A/C can be turned off, but the
A/C system shall remain active to prevent
fogging of the windows.
• If fog or mist appears on the windshield or
side glass, select Defrost mode and in-
crease blower speed. Recirculation Control
When outside air contains smoke,
odors, or high humidity, or if rapid
cooling is desired, you may wish to
recirculate interior air by pressing
the Recirculation control button.
Recirculation mode should only be
used temporarily. The recirculation LED will
illuminate when this button is selected. Push
the button a second time to turn off the Recir-
culation mode LED and allow outside air into
the vehicle.
NOTE:
In cold weather, use of Recirculation mode
may lead to excessive window fogging. The
Recirculation mode is not allowed in the
Defrost mode to improve window clearing
operation. Recirculation will be disabled au-
tomatically if this mode is selected.Operating Tips
Window Fogging
Windows will fog on the inside when the humid-
ity inside the vehicle is high. This often occurs
in mild or cool temperatures when it’s rainy or
humid. In most cases, turning the air condition-
ing (pressing the A/C button) on will clear the
fog. Adjust the temperature control, air direc-
tion, and blower speed to maintain comfort.
As the temperature gets colder, it may be
necessary to direct air onto the windshield.
Adjust the temperature control and blower
speed to maintain comfort. Higher blower
speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by
selecting the Defrost mode.
Regular cleaning of the inside of the windows
with a non-filming cleaning solution (vinegar
and water works very well) will help prevent
contaminates (cigarette smoke, perfumes, etc.)
from sticking to the windows. Contaminates
increase the rate of window fogging.
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Summer Operation
NOTE:
In some cases during high temperature
trailer tow operation the Air Conditioning
system performance may be reduced. This
is to help protect the engine from overheat-
ing during the high load condition.
Your air conditioning system is also equipped
with an automatic recirculation system. Whenthe system senses a heavy load or high heat
conditions, it may use partial Recirculation A/C
mode to provide additional comfort.
Winter Operation
When operating the system during the winter
months, make sure the air intake, located di-
rectly in front of the windshield, is free of ice,
slush, snow, or other obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more,
run the air conditioning system at idle for about
five minutes in the fresh air and high blower
setting. This will ensure adequate system lubri-
cation to minimize the possibility of compressor
damage when the system is started again.
209

Operating Tips Chart
210

5
STARTING AND OPERATING
•STARTING PROCEDURES ..................... 216
• Automatic Transmission .................... 216
• Keyless Enter-N-Go ....................... 216
• Normal Starting ......................... 217
• Extreme Cold Weather (Below 20°F or29°C)...... 218
• If Engine Fails To Start ..................... 218
• After Starting .......................... 219
• Normal Starting – Diesel Engine ............... 219
• AUTOMATIC TRANSMISSION ................... 221
• Key Ignition Park Interlock .................. 221
• Brake/Transmission Shift Interlock System ......... 222
• Five-Speed Automatic Transmission
(3.6L and 3.0L Diesel Engine) — If Equipped ........ 222
• Gear Ranges ........................... 222
• Six-Speed Automatic Transmission
(5.7L Engine) — If Equipped .................. 226
• Gear Ranges ........................... 226
211

•FOUR-WHEEL DRIVE OPERATION ................ 231
• Quadra-Trac II Operating Instructions/Precautions .... 231
• Shift Positions .......................... 232
• Shifting Procedures ...................... 233
• Quadra-Drive II System – If Equipped ........... 234
• SELEC-TERRAIN™ — IF EQUIPPED ............... 234
• Description ............................ 234
• Electronic Vehicle Information Center (EVIC) Display
Messages ............................. 235
• QUADRA-LIFT™ — IF EQUIPPED ................ 236
• Description ............................ 236
• Electronic Vehicle Information Center (EVIC) Display
Messages ............................. 237
• Operation ............................. 238
• ON-ROAD DRIVING TIPS ...................... 238
• OFF-ROAD DRIVING TIPS ..................... 239
• Quadra-Lift™ – If Equipped .................. 239
• When To Use 4WD LOW Range – If Equipped ....... 239
• Driving Through Water ..................... 239
• Driving In Snow, Mud And Sand ............... 240
• Hill Climbing ........................... 240
• Traction Downhill ........................ 241
212