2007 JEEP LIBERTY radiator cap

Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
If you notice a change in the sound of the exhaust system;
or if the exhaust fumes can be detected inside the vehicle;
or when the underside or rear of the vehicle is damaged;
have an authorized technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams
or loose connections could permit exhaust fumes to seep
into the passenger compartment. In addition, inspect the
exhaust system each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
Cooling System
WARNING!
You or others can be badly burned by hot antifreeze/
coolant or steam from your radiator. If you see or
hear steam coming from under the hood, don’t 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 antifreeze/coolant protection every 12 months
(before the onset of freezing weather, where applicable).
If antifreeze/coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
antifreeze/coolant. Check the front of the A/C condenser
(if equipped) or radiator for any accumulation of bugs,
MAINTAINING YOUR VEHICLE 333
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Use only high purity water such as distilled or deionized
water when mixing the water/antifreeze (coolant) solu-
tion. 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 main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing antifreeze/coolant types will decrease
the life of the antifreeze/coolant and will require more
frequent antifreeze/coolant changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
antifreeze/coolant, and to insure that antifreeze/coolant
will return to the radiator from the coolant recovery
bottle.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 antifreeze/coolant when the en-
gine 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
engine damage may result.
336 MAINTAINING YOUR VEHICLE

Disposal of Used Engine Coolant
Used Hybrid Organic Additive Technology (HOAT)
antifreeze/coolant is a regulated substance requiring
proper disposal. Check with your local authorities to
determine the disposal rules for your community. To
prevent ingestion by animals or children, do not store
HOAT antifreeze/coolant in open containers, or allow it
to remain in puddles on the ground. If ingested by a
child, contact a physician immediately. Clean up ground
spills immediately.
Coolant Level
The coolant recovery bottle provides a quick visual
method for determining that the antifreeze/coolant level
is adequate. With the engine idling, and warm to normal
operating temperature, the level of the antifreeze/coolant
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 forantifreeze/coolant freeze point or replacing coolant. Ad-
vise 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 antifreeze/coolant is needed to main-
tain the proper level, it should be added to the coolant
recovery 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 water to
enter the radiator.
MAINTAINING YOUR VEHICLE 337
7

Auxiliary Electrical Outlet (Power Outlet)...... 150
Auxiliary Power Outlet................... 150
Battery............................... 327
Emergency Starting..................... 308
Keyless Transmitter Replacement (RKE)....... 26
Saving Feature (Protection)............... 117
Belts,Drive ............................ 323
Body Mechanism Lubrication............... 331
B-Pillar Location........................ 249
Brake Assist System...................... 127
Brake Assist Warning Light................. 175
Brake Control System, Electronic............. 125
Brake System........................... 339
Anti-Lock (ABS).................126,168,241
Hoses.............................. 339
Master Cylinder....................... 341
Parking............................. 240
Warning Light........................ 171Brake/Transmission Interlock............... 220
Break-In Recommendations, New Vehicle........ 74
Bulb Replacement.....................361,362
Bulbs,Light ............................ 361
Calibration, Compass..................... 141
Capacities, Fluid........................ 366
Caps, Filler
Fuel................................ 277
Radiator (Coolant Pressure)............... 336
Car Washes............................ 348
Carbon Monoxide Warning..............144,276
Cargo Area Cover....................... 154
Cargo Area Features...................... 154
Cargo Compartment
Light ............................... 154
Luggage Carrier....................... 159
CargoLight ............................ 154
Cargo Tie-Downs........................ 155
INDEX 401
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Radiator Cap......................... 336
Selection of Coolant (Antifreeze).........334,366
Temperature Gauge..................... 169
Crankcase Emission Control System.......... 327
Cruise Control (Speed Control).............. 123
CruiseLight ........................... 170
CupHolder ............................ 152
Customer Assistance..................... 392
Daytime Running Lights................... 118
Dealer Service.......................... 319
Defroster, Rear Window................... 158
Delay (Intermittent) Wipers................. 121
Diagnostic System, Onboard................ 317
Dimmer Switch, Headlight................. 119
Dipsticks
Oil (Engine).......................... 320
Power Steering........................ 330
Disabled Vehicle Towing................... 311Disarming, Theft System................... 20
Disposal
Engine Oil........................... 323
Used Engine Fluids..................... 323
Door Locks........................... 26,28
Door Locks, Automatic.................... 29
Door Opener, Garage..................... 143
DriveBelts ............................ 323
Driving ............................... 235
Off-Pavement......................... 235
Off-Road............................ 235
Electric Remote Mirrors.................... 83
Electrical Outlet, Auxiliary (Power Outlet)...... 150
Electrical Power Outlets................... 150
Electronic Brake Control System............. 125
Electronic Speed Control (Cruise Control)...... 123
Electronic Stability Program (ESP)............ 129
Electronic Throttle Control Warning Light...... 174
INDEX 403
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