2012 JEEP GRAND CHEROKEE radiator

When adding engine coolant (antifreeze):
•
The manufacturer recommends using MOPAR
Antifreeze/ Coolant 5–Year/100,000 Mile For-
mula HOAT (Hybrid Organic Additive Technol-
ogy) or equivalent.
• Mix a minimum solution of 50% HOAT engine
coolant (antifreeze) and distilled water. Use
higher concentrations (not to exceed 70%) if
temperatures below -34°F (-37°C) are antici-
pated.
• Use only high purity water such as distilled
or deionized water when mixing the water/
engine coolant (antifreeze) solution. The use
of lower quality water will reduce the amount
of corrosion protection in the engine cooling
system.
Please note that it is the owner’s responsibility
to maintain the proper level of protection
against freezing according to the temperatures
occurring in the area where the vehicle is
operated.
NOTE:
Mixing engine coolant (antifreeze) types will
decrease the life of the engine coolant (an- tifreeze) and will require more frequent en-
gine coolant (antifreeze) changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss
of engine coolant (antifreeze), and to ensure
that engine coolant (antifreeze) will return to the
radiator from the coolant recovery tank.
The cap should be inspected and cleaned if
there is any accumulation of foreign material on
the sealing surfaces.
WARNING!
•
The warning words DO NOT OPEN HOT
on the cooling system pressure cap are a
safety precaution. Never add engine cool-
ant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to
cool an overheated engine. Heat causes
pressure to build up in the cooling system.
To prevent scalding or injury, do not remove
the pressure cap while the system is hot or
under pressure.
(Continued)
WARNING!(Continued)
• Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant
(antifreeze) is a regulated substance requiring
proper disposal. Check with your local authori-
ties to determine the disposal rules for your
community. To prevent ingestion by animals
and children, do not store ethylene glycol-
based engine coolant (antifreeze) in open con-
tainers or allow it to remain in puddles on the
ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up
any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual
method for determining that the engine coolant
(antifreeze) level is adequate. With the engine
idling, and warm to normal operating tempera-
ture, the level of the engine coolant (antifreeze)
in the bottle should be between the ranges
indicated on the bottle.
310

The radiator normally remains completely full,
so there is no need to remove the radiator cap,
unless checking for engine coolant (antifreeze)
freeze point or replacing engine coolant (anti-
freeze). Advise your service attendant of this.
As long as the engine operating temperature is
satisfactory, the coolant bottle need only be
checked once a month.
When additional engine coolant (antifreeze) is
needed to maintain the proper level, it should
be added to the coolant bottle. Do not overfill.
Points To Remember
NOTE:
When the vehicle is stopped after a few
miles (kilometers) of operation, you may
observe vapor coming from the front of the
engine compartment. This is normally a re-
sult of moisture from rain, snow, or high
humidity accumulating on the radiator and
being vaporized when the thermostat opens,
allowing hot engine coolant (antifreeze) to
enter the radiator.If an examination of your engine compartment
shows no evidence of radiator or hose leaks,
the vehicle may be safely driven. The vapor will
soon dissipate.
•
Do not overfill the coolant recovery bottle.
• Check engine coolant (antifreeze) freeze
point in the radiator and in the coolant recov-
ery bottle. If engine coolant (antifreeze)
needs to be added, contents of coolant
recovery bottle must also be protected
against freezing.
• If frequent engine coolant (antifreeze) addi-
tions are required, or if the level in the
coolant recovery bottle does not drop when
the engine cools, the cooling system should
be pressure tested for leaks.
• Maintain engine coolant (antifreeze) concen-
tration at 50% HOAT engine coolant (anti-
freeze) (minimum) and distilled water for
proper corrosion protection of your engine,
which contains aluminum components.
• Make sure that the radiator and coolant
recovery bottle hoses are not kinked or ob-
structed. •
Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning,
keep the front of the condenser clean.
• Do not change the thermostat for Summer or
Winter operation. If replacement is ever nec-
essary, install ONLY the correct type thermo-
stat. Other designs may result in unsatisfac-
tory cooling performance, poor gas mileage,
and increased emissions.
Brake SystemIn order to assure brake system performance,
all brake system components should be peri-
odically inspected. Refer to the “Maintenance
Schedule” for the proper maintenance inter-
vals.
WARNING!
Riding the brakes can lead to brake failure
and possibly an accident. Driving with your
foot resting or riding on the brake pedal can
result in abnormally high brake temperatures,
excessive lining wear, and possible brake
damage. You would not have your full braking
capacity in an emergency.
311

Cavity Car-tridgeFuse Mini
Fuse Description
J01 40 Amp Green Air Suspension
J02 30 Amp Pink Power Liftgate
Module
J03 30 Amp Pink Trailer Tow
J04 25 Amp Natural Driver Door
Node
J05 25 Amp Natural Passenger Door
Node
J06 40 Amp Green Antilock Brakes
Pump/Stability
Control System
J07 30 Amp Pink Antilock Brakes
Valve/Stability
Control System
J08 40 Amp Green Power Seat
J09 30 Amp Pink E-Brake
J10 30 Amp Pink Headlamp Wash
Relay ContactCavity Car-
tridgeFuse Mini
Fuse Description
J11 30 Amp Pink Drive Train Con-
trol Module
J12 30 Amp Pink Rear Defroster
J13 60 Amp Yellow Main Ignition Off
Draw (IOD)
J14 20 Amp Blue Trailer Tow
Lamps/Park
Lamps
J15 40 Amp Green Front Cabin Fan/
Blower
J17 40 Amp Green Starter Motor
Solenoid
J18 20 Amp Blue Powertrain Con-
trol Module/
Powertrain Con-
trol Module
Transmission
RangeCavity Car-
tridgeFuse Mini
Fuse Description
J19 60 Amp Yellow Radiator Fan
Motor HI/
Radiator Fan
Motor Low
J20 30 Amp Pink Front Wiper
J21 20 Amp Blue Front/Rear
Washer Control
J22 25 Amp Natural Sunroof Module
M1 15 Amp
Blue Stop Lamps
M2 20 Amp
Yellow Electronic Limit
Slip Differential/
Air Suspension
M3 20 Amp
Yellow Liftgate/Headrest
M5 25 Amp
Natural 115V AC Power
Inverter
M6 20 Amp
Yellow Cigar Lighter
319

Adaptive Cruise Control (ACC)
(Cruise Control)..............117
Adding Fuel ................265
Additives, Fuel ...............264
Air Cleaner, Engine
(Engine Air Cleaner Filter) .........304
Air Conditioner Maintenance .......305
Air Conditioning Refrigerant .......305
Air Conditioning System ..........205
Air Conditioning, Operating Tips .....208
Air Filter ...................304
Air Pressure, Tires .............253
Air Suspension ...............236
Airbag .................. 37,43
Airbag Deployment .............44
Airbag Light ........... 42,45,56,159
Airbag Maintenance ............45
Airbag, Side ............. 39,41,43
Airbag, Window (Side Curtain) . . . 39,41,43
Alarm (Security Alarm) ..........164
Alarm System (Security Alarm) ......16
Alterations/Modifications, Vehicle ......8
Anti-Lock Brake System (ABS) ......245
Anti-Lock Warning Light ..........163
Anti-Theft System .............164
Antifreeze (Engine Coolant) ........326
Appearance Care .............315 Assist, Hill Start
..............249
Auto Down Power Windows ........25
Automatic Dimming Mirror .........67
Automatic Door Locks ...........21
Automatic Headlights ...........105
Automatic Temperature Control (ATC) . . 205
Automatic Transmission .....222,226,313
Adding Fluid ...............315
Fluid and Filter Changes ........313
Fluid Level Check .........314,315
Fluid Type ................313
Special Additives ............314
Autostick ................ 225,230
Auxiliary Electrical Outlet
(Power Outlet) ...............142
Auxiliary Power Outlet ...........142
Battery ...................304
Keyless Transmitter Replacement
(RKE) ...................19
Belts, Seat ................ 30,56
Blind Spot Monitoring ............69
Body Mechanism Lubrication .......305
Brake Assist System ............246
Brake Control System, Electronic .....245
Brake Fluid .................312 Brake System
...............311
Anti-Lock
(ABS) .............245
Fluid Check ...............312
Master Cylinder .............312
Parking ..................244
Warning Light ..............162
Brake/Transmission Interlock .......222
Break-In Recommendations, New
Vehicle ....................55
Bulb Replacement .............322
Bulbs, Light .................58
Calibration, Compass ...........179
Camera, Rear ...............136
Capacities, Fluid ..............326
Caps, Filler Fuel ....................265
Power Steering .............243
Radiator (Coolant Pressure) ......310
Car Washes ................316
Carbon Monoxide Warning .........56
Cargo Area Cover .............148
Cargo Area Features ...........146
Cargo Compartment ............146
Light ...................147
Cargo Light .................147
366

Cargo Tie-Downs.............148
Cellular Phone ............. 74,204
Center High Mounted Stop Light .....325
Chains, Tire ................254
Changing A Flat Tire ...........283
Checking Your Vehicle For Safety .....55
Checks, Safety ...............55
Child Restraint .......... 47,49,51,53
Child Restraint Tether Anchors .......51
Child Safety Locks .............21
Clean Air Gasoline .............263
Climate Control ...............205
Cold Weather Operation .........218
Compact Disc (CD) Maintenance ....204
Compass ..................176
Compass Calibration ...........179
Compass Variance .............177
Computer, Trip/Travel ...........174
Connector UCI ....................183
Universal Consumer Interface (UCI) . . 183
Conserving Fuel ..............173
Console, Overhead ............138
Cooling System ..............308
Adding Coolant (Antifreeze) ......309
Coolant Capacity ............326
Coolant Level ..............310 Disposal of Used Coolant
.......310
Drain, Flush, and Refill .........309
Inspection ................308
Points to Remember ..........311
Pressure Cap ..............310
Radiator Cap ..............310
Selection of Coolant
(Antifreeze) ............. 309,326
Cruise Control (Speed Control) ......117
Cupholders .................144
Customer Assistance ...........356
Data Recorder, Event ............46
Daytime Running Lights ..........107
Defroster, Rear Window ..........150
Defroster, Windshield .........57,207
Diagnostic System, Onboard .......301
Diesel Fuel .................264
Diesel Fuel Requirements .........264
Dipsticks Automatic Transmission .........315
Oil (Engine) ...............302
Power Steering .............243
Disabled Vehicle Towing .........291
Disposal Engine Oil ................304 Door Locks
.................20
Door
Locks, Automatic ...........21
Driving ...................238
Off-Pavement ..............239
Off-Road .................239
Driving to Achieve Maximum Fuel
Economy ..................173
Electric Remote Mirrors ...........68
Electrical Outlet, Auxiliary
(Power Outlet) ...............142
Electronic Brake Control System .....245
Anti-Lock Brake System ........245
Brake Assist System ..........246
Electronic Roll Mitigation ........246
Traction Control System ........246
Electronic Roll Mitigation (ERM) .....246
Electronic Speed Control (Cruise
Control) ................ 115,117
Electronic Stability Control (ESC) .....247
Electronic Vehicle Information Center
(EVIC) ................. 160,164
Emergency, In Case of Freeing Vehicle When Stuck ......289
Hazard Warning Flasher ........282
Jacking ..................283
367