radiator cap JEEP GRAND CHEROKEE 2012 WK2 / 4.G Owners Manual

CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads HOT
(H), pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on HOT (H), and you hear continuous
chimes, turn the engine off immediately and call for
service.
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.
JACKING AND TIRE CHANGING
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
•Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
•Never start or run the engine while the vehicle is
on a jack.(Continued)
6
WHAT TO DO IN EMERGENCIES 549

ENGINE COMPARTMENT — 3.6L
1 — Totally Integrated Power Module (Fuses)6 — Air Cleaner Filter
2 — Engine Oil Dipstick 7 — Washer Fluid Reservoir
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Power Steering Fluid Reservoir
7
MAINTAINING YOUR VEHICLE 573

ENGINE COMPARTMENT — 5.7L
1 — Totally Integrated Power Module (Fuses)6 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 7 — Engine Oil Dipstick
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Air Cleaner Filter
574 MAINTAINING YOUR VEHICLE

3. Grab the bottom of the wiper blade and rotate it
forward to unsnap the blade pivot pin from the wiper
blade holder.4. Install the wiper blade pivot pin into the wiper blade
holder at the end of the wiper arm, and firmly press the
wiper blade until it snaps into place.
5. Lower the wiper blade and snap the pivot cap into
place.
Adding Washer Fluid
On vehicles equipped with a Electronic Vehicle Informa-
tion Center (EVIC), the low washer fluid level will be
indicated. When the sensor detects a low fluid level, the
windshield will light on the vehicle graphic outline and
the “WASHER FLUID LOW” message will be displayed.
The fluid reservoir for the windshield washers and the
rear window washer is shared. The fluid reservoir is
located in the engine compartment, be sure to check the
fluid level at regular intervals. Fill the reservoir with
windshield washer solvent only (not radiator antifreeze).
When refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel and wipe
1—WiperBlade
2 — Blade Pivot Pin
3—WiperArm
4 — Wiper Blade Holder
588 MAINTAINING YOUR VEHICLE

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 or
rusty in appearance, the system should be drained,
flushed and refilled with fresh engine coolant (anti-
freeze). Check the front of the A/C condenser for anyaccumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the condenser.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at
the coolant recovery bottle and radiator. Inspect the
entire system for leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
If the cap is sealing properly, the engine coolant (anti-
freeze) will begin to drain from the coolant recovery
bottle. DO NOT REMOVE THE COOLANT PRESSURE
CAP WHEN THE COOLING SYSTEM IS HOT.
592 MAINTAINING YOUR VEHICLE

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 precau-
tion. Never add engine coolant (antifreeze) when
the engine is overheated. 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.
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
7
MAINTAINING YOUR VEHICLE 595

Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals and children, do not store ethylene glycol-based
engine coolant (antifreeze) in open containers 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 temperature, the level of the engine coolant
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.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 en-
gine coolant (antifreeze). 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 nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
596 MAINTAINING YOUR VEHICLE

Fluid Level Check................. 602,603
Fluid Type ......................... 601
Special Additives ..................... 602
Autostick ........................... 428,437
Auxiliary Electrical Outlet (Power Outlet) ...... 258
Auxiliary Power Outlet ................... 258
B-Pillar Location ........................ 483
Battery ............................... 583
Keyless Transmitter Replacement (RKE) ..... 27
Belts, Seat ............................ 52,96
Blind Spot Monitoring .................... 112
Body Mechanism Lubrication ............... 586
Brake Assist System ...................... 465
Brake Control System, Electronic ............. 464
Brake Fluid ............................ 598
Brake System ........................... 597
Anti-Lock (ABS) ..................... 464
Fluid Check ........................ 598 Master Cylinder
..................... 598
Parking ........................... 462
Warning Light ....................... 290
Brake/Transmission Interlock ............... 421
Break-In Recommendations, New Vehicle ........ 93
Bulb Replacement ..................... 616,617
Bulbs, Light ............................ 98
Calibration, Compass ..................... 319
Camera, Rear ........................... 237
Capacities, Fluid ........................ 622
Caps, Filler Fuel .............................. 517
Power Steering ...................... 461
Radiator (Coolant Pressure) ............. 595
Car Washes ............................ 605
Carbon Monoxide Warning ...............95,513
Cargo (Vehicle Loading) ................... 521
Cargo Area Cover ....................... 271
10
INDEX 657

Cooling System......................... 592
Adding Coolant (Antifreeze) ............. 594
Coolant Capacity ..................... 622
Coolant Level ....................... 596
Disposal of Used Coolant ............... 596
Drain, Flush, and Refill ................ 593
Inspection .......................... 592
Points to Remember .................. 596
Pressure Cap ........................ 595
Radiator Cap ....................... 595
Selection of Coolant (Antifreeze) .......593,622
Cruise Control (Speed Control) .............. 201
Cupholders ............................ 264
Customer Assistance ..................... 647
Data Recorder, Event ...................... 80
Daytime Running Lights ................... 183
Dealer Service .......................... 578 Defroster, Rear Window
................... 275
Defroster, Windshield ................96,396,403
Diagnostic System, Onboard ................ 575
Dipsticks Automatic Transmission ................ 603
Oil (Engine) ........................ 579
Power Steering ...................... 461
Disabled Vehicle Towing ................... 566
Disposal Engine Oil ......................... 582
Used Engine Fluids ................... 582
Door Locks ............................. 33
Door Locks, Automatic .................... 35
Door Opener, Garage ..................... 242
Driving ............................... 453
Off-Pavement ....................... 454
Off-Road .......................... 454
Driving to Achieve Maximum Fuel Economy .... 311
10
INDEX 659