JEEP GRAND CHEROKEE 2012 Owner handbook (in English)

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.
208

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

•After Driving Off-Road ..................... 241
• POWER STEERING ......................... 242
• 3.6L And 5.7L Engine ...................... 242
• 3.0L Diesel Engine ....................... 242
• Power Steering Fluid Check .................. 243
• MULTI-DISPLACEMENT SYSTEM (MDS)
(IF EQUIPPED) — 5.7L ENGINE ONLY .............. 244
• PARKING BRAKE .......................... 244
• ELECTRONIC BRAKE CONTROL SYSTEM ........... 245
• Anti-Lock Brake System (ABS) ................ 245
• Traction Control System (TCS) ................ 246
• Brake Assist System (BAS) .................. 246
• Electronic Roll Mitigation (ERM) ............... 246
• Electronic Stability Control (ESC) .............. 247
• Trailer Sway Control (TSC) .................. 248
• Hill Start Assist (HSA) ..................... 249
• Ready Alert Braking ...................... 250
• Rain Brake Support ....................... 250
• Hill Descent Control (HDC) — Four-Wheel Drive Models
With MP3023 Two-Speed Transfer Case Only ........ 250
• ESC Activation/Malfunction Indicator Light and ESC OFF
Indicator Light .......................... 251
213

•TIRES — GENERAL INFORMATION ............... 252
• Tire Pressure .......................... 252
• Tire Inflation Pressures .................... 253
• High Speed Operation ..................... 253
• Radial-Ply Tires ......................... 253
• Limited-Use Spare – If Equipped ............... 253
• Tire Spinning .......................... 253
• Tire Chains ............................ 254
• Treadwear Indicators ...................... 254
• Life Of Tire ............................ 255
• Replacement Tires ....................... 255
• Directional Tread Pattern Tires – If Equipped ........ 256
• TIRE ROTATION RECOMMENDATIONS ............. 256
• Non-Directional Tires Only .................. 256
• TIRE PRESSURE MONITOR SYSTEM (TPMS) .......... 257
• Base System ........................... 258
• Premium System – If Equipped ................ 259
• TPMS Deactivation ....................... 261
• General Information ...................... 262
• FUEL REQUIREMENTS — GASOLINE ENGINE ......... 262
• 3.6L Engine ........................... 262
• 5.7L Engine ........................... 262
214

•FUEL REQUIREMENTS — DIESEL ENGINE ........... 264
• ADDING FUEL ............................ 265
• Fuel Filler Cap (Gas Cap) ................... 265
• Loose Fuel Filler Cap Message ................ 266
• TRAILER TOWING ......................... 266
• Common Towing Definitions ................. 266
• Breakaway Cable Attachment ................. 268
• Trailer Towing Weights (Maximum Trailer Weight
Ratings) .............................. 270
• Trailer And Tongue Weight .................. 270
• Towing Requirements ..................... 271
• Towing Tips ........................... 274
• RECREATIONAL TOWING (BEHIND MOTORHOME, ETC) . . . 276
• Towing This Vehicle Behind Another Vehicle ........ 276
• Recreational Towing — Quadra–
Trac II /Quadra–Drive II Four-Wheel Drive Models . . . 277
215

STARTING PROCEDURESBefore starting your vehicle, adjust your seat,
adjust the inside and outside mirrors, fasten
your seat belt, and if present, instruct all other
occupants to buckle their seat belts.
WARNING!
•Never leave children alone in a vehicle, or
with access to an unlocked vehicle. Allow-
ing children to be in a vehicle unattended is
dangerous for a number of reasons. A child
or others could be seriously or fatally in-
jured. Children should be warned not to
touch the parking brake, brake pedal or the
shift lever.
• Do not leave the key fob in or near the
vehicle, and do not leave a vehicle
equipped with Keyless Enter-N-Go in the
ACC or ON/RUN mode. A child could op-
erate power windows, other controls, or
move the vehicle.
Automatic TransmissionThe shift lever must be in the NEUTRAL or
PARK position before you can start the engine.
Apply the brakes before shifting into any driv-
ing gear.
CAUTION!
Damage to the transmission may occur if the
following precautions are not observed:
•Shift into PARK only after the vehicle has
come to a complete stop.
• Shift into or out of REVERSE only after the
vehicle has come to a complete stop and
the engine is at idle speed.
• Do not shift from REVERSE, PARK, or
NEUTRAL into any forward gear when the
engine is above idle speed.
• Before shifting into any gear, make sure
your foot is firmly on the brake pedal.
Using Fob With Integrated Key (Tip Start)
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or
pressing the accelerator pedal. Do not
press the accelerator. Use the Fob with
Integrated Key to briefly turn the ignition switch
to the START position and release it as soon as
the starter engages. The starter motor will con-
tinue to run, and it will disengage automatically
when the engine is running. If the engine fails to
start, the starter will disengage automatically in
10 seconds. If this occurs, turn the ignition
switch to the LOCK position, wait 10 to 15 sec-
onds, then repeat the “Normal Starting” proce-
dure.
Keyless Enter-N-Go
This feature allows the
driver to operate the ig-
nition switch with the
push of a button, as
long as the ENGINE
START/STOP button is
installed and the Re-
mote Keyless Entry
(RKE) transmitter is in
the passenger com-
partment.
216