2010 JEEP PATRIOT coolant temperature

17. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If temperature gauge reads “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
the “H” and you hear continuous chimes, turn the
engine off immediately, and call an authorized deal-
ership for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer-
ship for service if your vehicle overheats. If you
decide to look under the hood yourself, see “Main-
taining Your Vehicle”. Follow the warnings under the
Cooling System Pressure Cap paragraph.
18. Cruise Indicator — If Equipped This indicator shows that the Electronic Speed
Control System is ON.
19. 4WD Indicator Light
This light indicates the vehicle is in 4WD Locked mode.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 195

•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!
•When working near the radiator cooling fan, dis-
connect the fan motor lead or turn the ignition
switch to the OFF position. The fan is temperature
controlled and can start at any time the ignition
switch is in the ON position.
•You or others can be badly burned by hot coolant
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 is hot.
Coolant Checks
Check 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 any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
7
MAINTAINING YOUR VEHICLE 417

CAUTION! (Continued)
•This vehicle has not been designed for use with
Propylene Glycol based engine coolant (anti-
freeze). Use of Propylene Glycol based engine
coolant (antifreeze) is not recommended.
Adding Coolant
Your vehicle has been built with an improved engine
coolant (antifreeze) that allows extended maintenance
intervals. This engine coolant (antifreeze) can be used up
to five years or 102,000 miles (170 000 km) before
replacement. To prevent reducing this extended mainte-
nance period, it is important that you use the same
engine coolant (antifreeze) throughout the life of your
vehicle.
Please review these recommendations for using Hybrid
Organic Additive Technology (HOAT) engine coolant
(antifreeze). When adding engine coolant (antifreeze):
•The manufacturer recommends using MOPAR
Antifreeze/Coolant 5 Year/100,000 Mile Formula
HOAT (Hybrid Organic Additive Technology) or
equivalent.
•Mix a minimum solution of 50% HOAT engine coolant
and distilled water. Use higher concentrations (not to
exceed 70%) if temperatures below34°F (37°C) are
anticipated.
•Use only high purity water such as distilled or deion-
ized 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 main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
7
MAINTAINING YOUR VEHICLE 419

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 or 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 coolant 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 “ADD” and “FULL” lines
shown on the bottle.The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
the coolant freeze point or replacing the engine 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.
7
MAINTAINING YOUR VEHICLE 421

ABS (Anti-Lock Brake System).............. 319
Adding Engine Coolant (Antifreeze) .......... 419
Adding Fuel ........................... 365
Adding Washer Fluid ..................... 414
Additives, Fuel ......................... 363
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 410
Air Conditioner Maintenance ............... 412
Air Conditioning ........................ 270
Air Conditioning Controls ................. 270
Air Conditioning Filter .................... 282
Air Conditioning, Operating Tips ............ 283
Air Conditioning Refrigerant .............412,413
Air Conditioning System .............270,274,412
Air Pressure, Tires ....................... 343
Airbag .............................. 56,66
Airbag Deployment ....................... 68
Airbag Light ..................... 65,70,83,190
Airbag Maintenance ....................... 69
Airbag, Side ........................ 59,64,66Airbag, Window (Side Curtain)
...........60,64,66
Alarm Light ........................... 194
Alarm System (Security Alarm) ............... 17
Alterations/Modifications, Vehicle ............. 8
Antenna, Satellite Radio ................254,264
Antifreeze (Engine Coolant) ...........418,443,444
Capacities ........................... 443
Disposal ............................ 421
Anti-Lock Brake System (ABS) .............. 319
Anti-Lock Warning Light .................. 191
Anti-Theft Security Alarm (Theft Alarm) ........ 17
Appearance Care ........................ 428
Assistance Towing ....................... 110
Automatic Dimming Mirror ................. 92
Automatic Door Locks ................... 29,30
Automatic Temperature Control (ATC) ......... 274
Automatic Transaxle ...........12,290,295,385,425
Fluid Level Check ..................... 426
Interlock System ....................... 296
478 INDEX

Gasoline (Fuel)....................... 360,443
Gasoline, Reformulated ................... 361
Gauges Coolant Temperature ................... 195
Fuel ............................... 189
Odometer ........................... 197
Tachometer .......................... 191
Gearshift .............................. 297
General Information ................. 17,124,360
General Maintenance ..................... 406
Glass Cleaning .......................... 432
Gross Axle Weight Rating .................. 370
Gross Vehicle Weight Rating .............368,369
Hands-Free Phone (Uconnect™) .............. 96
Hazard Driving Through Flowing, Rising, or Shallow
Standing Water ........................ 302
Hazard Warning Flasher ................... 384 Head Restraints
......................... 136
Headlights ............................ 438
Cleaning ............................ 431
High Beam .......................... 146
High Beam/Low Beam Select Switch ........ 146
Passing ............................. 146
Replacing ........................... 438
Switch .............................. 143
Heated Mirrors .......................... 95
Heated Seats ........................... 134
Heater ............................... 270
Heater, Engine Block ..................... 292
Hill Descent Control ................... 200,324
Hill Start Assist ......................... 326
Hitches Trailer Towing ........................ 372
HomeLink (Garage Door Opener) Transmitter . . . 155
Hood Release .......................... 141
484 INDEX

System, Remote Starting.................... 25
Tachometer ............................ 191
Taillights .............................. 441
Temperature Control, Automatic (ATC) ........ 274
Temperature Gauge, Engine Coolant .......195,385
Tether Anchor, Child Restraint ............... 77
Theft Alarm (Security Alarm) ................ 17
Theft System (Security Alarm) ............... 17
Tie Down Hooks, Cargo ................... 176
Tilt Steering Column ..................... 151
Tire and Loading Information Placard ......... 338
Tire Identification Number (TIN) ............. 336
Tire Markings .......................... 332
Tire Safety Information .................... 332
Tires ............................ 85,342,475
Aging (Life of Tires) .................... 348
Air Pressure .......................... 342
Chains .............................. 349 Changing
............................ 386
Compact Spare ........................ 345
Flat Changing ........................ 391
General Information .................... 342
High Speed .......................... 345
Inflation Pressures ..................... 343
Jacking ............................. 386
Life of Tires .......................... 348
Load Capacity ..................... 338,339
Pressure Monitor System (TPMS) ........... 351
Pressure Warning Light .................. 196
Quality Grading ....................... 475
Radial .............................. 345
Replacement ......................... 348
Rotation ............................ 350
Safety ........................... 332,342
Sizes ............................... 334
Snow Tires ........................... 350
Spare Tire ........................... 386
492 INDEX