2013 JEEP GRAND CHEROKEE heating

NOTE:Shifts between DRIVE and REVERSE can only be
achieved at wheel speeds of 5 mph or less. Whenever the
transmission remains in NEUTRAL for more than 2 sec-
onds, 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 theESC Offswitch, to place the Electronic
Stability Control (ESC) system inPartial Offmode,
before rocking the vehicle. Refer to “Electronic Brake
Control” in “Starting And Operating” for further infor-
mation. Once the vehicle has been freed, press theESC
Offswitch again to restoreESC Onmode.
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.
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)
598 WHAT TO DO IN EMERGENCIES

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).
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.
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.
WARNING!
•Do not use a chain for freeing a stuck vehicle.
Chains may break, causing serious injury or death.
•Stand clear of vehicles when pulling with tow
hooks. Tow straps may become disengaged, caus-
ing serious injury.6
WHAT TO DO IN EMERGENCIES 599

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.
626 MAINTAINING YOUR VEHICLE

Cavity Car-
tridge
FuseMini
FuseDescription
M3 20 Amp
YellowLiftgate/Headrest
M5 25 Amp
Natural115V AC Power
Inverter
M6 20 Amp
YellowCigar Lighter
M7 20 Amp
YellowPower Outlet #2
(Switchable)
M8 20 Amp
YellowFront Heated Seat
& Steering Wheel
M9 20 Amp
YellowRear Heated SeatsCavity Car-
tridge
FuseMini
FuseDescription
M10 15 Amp
BlueVideo/Universal
Garage Door
Opener
M11 10 Amp
RedHeating, Ventilation
& Air Conditioning
(Climate Control
System)
M12 30 Amp
GreenRadio/Amplifier
M13 20 Amp
YellowInstrument Cluster
M14 20 Amp
YellowBack Up Camera –
If Equipped
648 MAINTAINING YOUR VEHICLE

Electric Rear Window Defrost.................294
Electric Remote Mirrors.....................125
Electronic Brake Control System...............494
Brake Assist System.....................495
Electronic Roll Mitigation (ERM)..............496
Electronic Speed Control (Cruise Control)........215
Electronic Stability Control (ESC)..............497
Electronic Vehicle Information Center (EVIC)......306
Emergency, In Case of
Freeing Vehicle When Stuck...............597
Hazard Warning Flasher..................582
Jump Starting.........................593
Tow Hooks...........................599
Emission Control System Maintenance..........610
Engine
Air Cleaner...........................616
Block Heater..........................445
Break-In Recommendations................108
Compartment.........................607Compartment Identification...............607
Cooling..............................627
Exhaust Gas Caution.....................50
Fails to Start..........................443
Flooded, Starting.......................443
Fuel Requirements......................541
Jump Starting.........................593
Oil .................................613
Oil Filler Cap.........................615
Oil Selection..........................614
Oil Synthetic..........................615
Overheating..........................582
Starting..............................439
Temperature Gauge.....................312
Engine Oil Viscosity.......................615
Engine Oil Viscosity Chart...................615
Enhanced Accident Response Feature............79
Entry System, Illuminated....................23
Ethanol................................542
686 INDEX

Off-Road Driving (Off-Pavement)..............482
Oil Change Indicator.......................328
Oil Change Indicator, Reset..................328
Oil, Engine..............................613
Capacity.............................659
Change Interval........................614
Dipstick.............................613
Disposal.............................616
Filter...............................616
Filter Disposal.........................616
Identification Logo......................614
Materials Added to.....................615
Recommendation.......................614
Synthetic.............................615
Viscosity.............................615
Oil Filter, Selection........................616
Onboard Diagnostic System..................609
Opener, Garage Door (HomeLink®)............260Operating Precautions......................609
Operator Manual (Owner’s Manual).............6
Outside Rearview Mirrors...................124
Overdrive...............................456
Overdrive OFF Switch......................456
Overhead Console.........................258
Overheating, Engine.......................312
Owner’s Manual (Operator Manual).............6
Paint Care..............................640
Panic Alarm..............................26
Parking Brake............................491
Park Sense System, Rear....................246
Passing Light............................206
Personal Settings..........................338
Pets...................................108
Pets, Transporting.........................108
Placard, Tire and Loading Information.........
.514
10
INDEX 693