2016 JEEP GRAND CHEROKEE heating

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. Push and hold the lock button on the gear
selector. 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:
Push the ESC Off switch (if necessary), to place
the Electronic Stability Control (ESC) system in Partial
Off mode, before rocking the vehicle. Refer to “Elec-
tronic Brake Control” in “Starting And Operating” for
further information. Once the vehicle has been freed,
push 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
engine 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 pro-
longed efforts to free a stuck vehicle.
(Continued)
6
WHAT TO DO IN EMERGENCIES 619

CAUTION!(Continued)
•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.
• 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).
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
(Continued)
WARNING! (Continued)
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.
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.
620 WHAT TO DO IN EMERGENCIES

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.Cooling System
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty, the
system should be drained, flushed, and refilled with
fresh OAT coolant (conforming to MS.90032) by an
authorized dealer. Check the front of the A/C condenser
662 MAINTAINING YOUR VEHICLE

Tow Hooks........................... .620
Emission Control System Maintenance ..........634
Engine Air Cleaner .......................... .641
Block Heater ......................... .465
Break-In Recommendations ................109
Compartment ...................... .631, 632
Compartment Identification .............631, 632
Coolant (Antifreeze) .....................699
Cooling ............................. .662
Exhaust Gas Caution .................110,568
Fails To Start ......................... .459
Flooded, Starting ...................... .459
Fuel Requirements ...................563, 698
Jump Starting ......................... .614
Oil .......................... .638, 698, 699
Oil Filler Cap ......................... .640
Oil Filter ............................ .641
Oil Selection ...................... .639, 698Oil Synthetic
......................... .640
Overheating .......................... .600
Starting ............................. .456
Engine Oil Viscosity ....................639, 640
Engine Oil Viscosity Chart ...................639
Enhanced Accident Response Feature ............79
Entry System, Illuminated ....................23
Ethanol ............................... .565
Event Data Recorder ........................83
Exhaust Gas Caution ....................110,568
Exhaust System .......................110,660
Exterior Lights ...........................114
Filters Air Cleaner .......................... .641
Air Conditioning .................428, 642, 649
Engine Oil ........................ .641, 699
Engine Oil Disposal .....................641
Flashers ............................... .600
10
INDEX 727

Multi-Function Control Lever.................169
New Vehicle Break-In Period .................109
Occupant Restraints ........................51
Octane Rating, Gasoline (Fuel) ................563
Off-Pavement Driving (Off-Road) ..............495
Off-Road Driving (Off-Pavement) ..............495
Oil, Engine ...................... .337, 638, 699
Capacity ............................ .698
Change Interval ....................... .638
Dipstick ............................. .638
Disposal ............................. .641
Filter ............................ .641, 699
Filter Disposal ........................ .641
Identification Logo ..................... .639
Materials Added To ..................... .641
Pressure Warning Light ...................306
Recommendation ....................639, 698 Synthetic
............................ .640
Viscosity ...................... .639, 640, 698
Oil Filter, Change ........................ .641
Oil Filter, Selection ....................... .641
Oil Pressure Light ........................ .306
Onboard Diagnostic System ..................633
Opener, Garage Door (HomeLink) .............254
Operating Precautions ..................... .633
Operator Manual (Owner’s Manual) .............6
Outside Rearview Mirrors ...................131
Overhead Console ........................ .252
Overheating, Engine ...................... .600
Owner’s Manual (Operator Manual) ..........6,716
Paddle Shifters .......................... .476
Paint Care ............................. .674
Panic Alarm ..............................26
Parking Brake ........................... .505
ParkSense System, Rear ..................223, 235
10
INDEX 733