2014 JEEP GRAND CHEROKEE heating

Paddle Shift Mode
•When using the Paddle Shift switches, select the
highest gear that allows for adequate performance and
avoids frequent downshifts. For example, choose “5” if
the desired speed can be maintained. Choose “4” or
“3” if needed to maintain the desired speed.
• To prevent excess heat generation, avoid continuous
driving at high RPM. Reduce vehicle speed as neces-
sary to avoid extended driving at high RPM. Return to
a higher gear or vehicle speed when grade and road
conditions allow.
Electronic Speed Control — If Equipped
• Do not use in hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed. •
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
480 STARTING AND OPERATING

HAZARD WARNING FLASHERS
The Hazard Warning flasher switch is located on the
switch bank just above the climate controls.Press the switch to turn on the Hazard Warning
flasher. When the switch is activated, all direc-
tional turn signals will flash on and off to warn oncoming
traffic of an emergency. Press the switch a second time to
turn off the Hazard Warning flashers.
This is an emergency warning system and it should not
be used when the vehicle is in motion. Use it when your
vehicle is disabled and it is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flashers will continue to operate even
though the ignition is placed in the OFF position.
NOTE: With extended use, the Hazard Warning flashers
may wear down your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
• On the highways — slow down.
•
In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase the engine idle speed.
NOTE: There are steps that you can take to slow down
an impending overheat condition:
• If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
•
You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control to
high. This allows the heater core to act as a supplement
to the radiator and aids in removing heat from the
engine cooling system.
484 WHAT TO DO IN EMERGENCIES

FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it
can often be moved using a rocking motion. Turn the
steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE
and REVERSE while gently pressing the accelerator.
NOTE:Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph (8 km/h) or less.
Whenever the transmission remains in NEUTRAL for
more than two seconds, you must press the brake pedal
to engage DRIVE or REVERSE.
Use the least amount of accelerator pedal pressure that
will maintain the rocking motion without spinning the
wheels or racing the engine. NOTE:
Press the ESC Off switch (if necessary), to
place the Electronic Stability Control (ESC) system in
Partial Off mode, before rocking the vehicle. Refer to
“Electronic Brake Control” in “Starting And Operating”
for further information. Once the vehicle has been freed,
press the ESC Off switch again to restore ESC On
mode.
CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.
6
WHAT TO DO IN EMERGENCIES 503

WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause damage, or
even failure, of the axle and tires. A tire could
explode and injure someone. Do not spin your vehi-
cle’s wheels faster than 30 mph (48 km/h) or for
longer than 30 seconds continuously without stop-
ping when you are stuck and do not let anyone near
a spinning wheel, no matter what the speed.
CAUTION!
•When “rocking” a stuck vehicle by shifting be-
tween DRIVE and REVERSE, do not spin the
wheels faster than 15 mph (24 km/h), or drivetrain
damage may result.
(Continued)
CAUTION! (Continued)
•Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no trans-
mission shifting occurring).
EMERGENCY TOW HOOKS — IF EQUIPPED
If your vehicle is equipped with tow hooks, there will be
one in the rear and two mounted on the front of the
vehicle. The rear hook will be located on the driver’s side
of the vehicle.
NOTE: For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle.
504 WHAT TO DO IN EMERGENCIES

Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune-up to manufacturer’s specifica-
tions, should be obtained immediately. To minimize the possibility of catalytic converter dam-
age:
•
Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
• Do not try to start the engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idle or malfunctioning operating conditions.
7
MAINTAINING YOUR VEHICLE 529

Oil..................................516
Oil Change Interval ..................... .516
Oil Filler Cap ......................... .518
Oil Selection .......................... .517
Oil Synthetic ......................... .518
Overheating .......................... .484
Starting ............................. .391
Temperature Gauge ..................... .299
Engine Oil Viscosity ...................... .518
Enhanced Accident Response Feature ............80
Entry System, Illuminated ....................22
Ethanol ............................... .460
Event Data Recorder ........................84
Exhaust Gas Caution ........................49
Exhaust System ...........................112
Exterior Lights ...........................116
FCC General Information (Remote Keyless Entry) . . .27
FCC General Information (Sentry Key) ...........19Filters
Air Cleaner .......................... .519
Air Conditioning ...................... .385
Engine Oil ........................... .519
Engine Oil Disposal .....................518
Flashers ............................... .484
Hazard Warning ....................... .484
Turn Signal ............................116
Flooded Engine Starting ....................395
Fluid Capacities ......................... .563
Fluid Leaks .............................116
Fluid Level Checks Brake ............................... .536
Cooling System ........................ .530
Engine Oil ........................... .516
Fluids, Lubricants and Genuine Parts ...........564
Fog Lights ............................. .297
Fog Light Service ........................ .559
Folding Rear Seat ........................ .162
600 INDEX

Monitor, Tire Pressure System................451
Mopar Parts ............................ .514
MTBE/ETBE ........................... .460
Multi-Function Control Lever .................171
New Vehicle Break-In Period .................111
Occupant Restraints ........................49
Occupant Restraints (Sedan) ..................72
Octane Rating, Gasoline (Fuel) ................459
Odometer .............................. .303
Trip ................................ .303
Oil, Engine ............................. .516
Capacity ............................ .563
Change Interval ....................... .516
Checking ............................ .516
Disposal ............................. .518
Filter ............................... .519
Filter Disposal ........................ .518Identification Logo
..................... .517
Materials Added to ..................... .518
Recommendation ...................... .517
Synthetic ............................ .518
Viscosity ............................ .518
Oil Filter, Selection ....................... .519
Older Children And Child Restraints ............89
Onboard Diagnostic System ..................512
Opener, Garage Door (HomeLink®) ............252
Operating Precautions ..................... .512
Operator Manual (Owner’s Manual) .............6
Outside Rearview Mirrors ...................131
Overhead Console ........................ .250
Overheating, Engine ...................... .299
Owner’s Manual (Operator Manual) .............6
Paint Care ............................. .542
Panic Alarm ..............................24
Parking Brake ........................... .415
10
INDEX 605