2009 JEEP COMMANDER cooling

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.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 the engine coolant (antifreeze) freeze point in
the radiator and in the coolant recovery 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) additions 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) concentration at
50% HOAT engine coolant (antifreeze) (minimum)
and distilled water for proper corrosion protection of
your engine, which contains aluminum components.
436 MAINTAINING YOUR VEHICLE

•Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
•Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean, also.
•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be periodically inspected.
Refer to the “Maintenance Schedule” in Section 8 for the
proper maintenance intervals.
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 wouldn’t have your full
braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” dot and a “MIN” dot. The fluid level must be
kept within these two dots. Do not add fluid above the
MAX mark, because leakage may occur at the cap.
MAINTAINING YOUR VEHICLE 437
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FLUIDS AND CAPACITIES
U.S. Metric
Fuel (Approximate)21 Gallons 79 Liters
Engine Oil with Filter
3.7 Liter Engine (SAE 5W-20, API Certified) 5 Quarts 4.7 Liters
4.7 Liter Engine (SAE 5W-20, API Certified) 6 Quarts 5.7 Liters
5.7 Liter Engine (SAE 5W-20, API Certified) 7 Quarts 6.6 Liters
Cooling System *
3.7 Liter Engine (MOPAREngine Coolant/Antifreeze 5
Year/100,000 Mile Formula)9 Quarts 8.5 Liters
4.7 Liter Engine (MOPAREngine Coolant/Antifreeze 5
Year/100,000 Mile Formula)14.5 Quarts 13.7 Liters
5.7 Liter Engine (MOPAREngine Coolant/Antifreeze 5
Year/100,000 Mile Formula)14.5 Quarts 13.7 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
MAINTAINING YOUR VEHICLE 465
7

Cargo Load Floor........................ 178
Cargo (Vehicle Loading)................... 378
Cellular Phone........................88,270
Center High Mounted Stop Light............ 464
Certification Label....................... 378
Chains, Tire............................ 354
Changing A Flat Tire..................... 401
Chart, Tire Sizing........................ 339
Check Engine Light
(Malfunction Indicator Light)............... 419
Checks, Safety........................... 75
Child Restraint....................64,65,69,71
Child Restraint Tether Anchors.............68,69
Child Safety Locks........................ 33
Climate Control......................... 271
Clock........................220,234,237,247
Cold Weather Operation................... 294
Command View Skylights.................. 172
Compact Disc (CD) Maintenance............. 270Compact Spare Tire...................... 349
Compass.............................. 210
Compass Calibration..................... 210
Compass Variance....................... 211
Computer, Trip/Travel.................... 206
Connector
UCI ................................ 257
Universal Consumer Interface (UCI)......... 257
Console, Overhead....................... 162
Contract, Service........................ 489
Cooling System......................... 431
Adding Coolant (Antifreeze).............. 433
Coolant Capacity...................... 465
Coolant Level......................... 435
Disposal of Used Coolant................ 435
Drain, Flush, and Refill.................. 432
Inspection........................... 431
Points to Remember.................... 436
Pressure Cap......................... 434
498 INDEX

Electronic Stability Program............... 326
Traction Control System................. 324
Electronic Roll Mitigation (ERM)............. 325
Electronic Speed Control (Cruise Control)...... 153
Electronic Stability Program (ESP)............ 326
Electronic Throttle Control Warning Light...... 199
Electronic Vehicle Information Center
(EVIC).............................197,200
Emergency, In Case of
Freeing Vehicle When Stuck............... 306
Hazard Warning Flasher................. 400
Jacking............................. 401
Jump Starting......................... 409
Tow Hooks.......................... 411
Emission Control System Maintenance......419,470
Engine
Air Cleaner.......................... 424
Block Heater......................... 296
Break-In Recommendations................ 73Compartment...................415,416,417
Compartment Identification.........415,416,417
Cooling............................. 431
Exhaust Gas Caution................42,74,371
Fails to Start.......................... 295
Flooded, Starting...................... 295
Fuel Requirements..................367,465
Multi-Displacement.................... 323
Oil ..............................422,465
Oil Change Interval.................... 422
Oil Disposal.......................... 424
Oil Filter............................ 424
Oil Filter Disposal..................... 424
Oil Selection.......................423,465
Oil Synthetic......................... 424
Overheating.......................... 400
Starting............................. 292
Temperature Gauge.................... 196
Engine Oil Viscosity...................... 423
500 INDEX

Spare Tire........................... 402
Spinning............................ 351
Tread Wear Indicators................... 352
Wheel Mounting...................... 408
Tongue Weight/Trailer Weight.............. 385
Torque Converter Clutch.................. 305
Tow Hooks, Emergency................... 411
Tow/Haul Indicator Light................. 197
Towing............................380,412
24-Hour Towing Assistance............... 102
Disabled Vehicle....................... 412
Guide.............................. 384
Recreational.......................... 392
Weight.............................. 384
Towing Assistance....................... 102
Traction Control......................... 324
Trailer Sway Control (TSC)................. 331
Trailer Towing.......................... 380
Cooling System Tips.................... 392Hitches............................. 383
Minimum Requirements................. 386
Trailer and Tongue Weight............... 385
Wiring.............................. 389
Trailer Towing Guide..................... 384
Trailer Weight.......................... 384
Transfer Case........................... 439
Maintenance......................... 439
Transmission
Automatic........................299,440
Maintenance......................... 440
Shifting............................. 297
Transmitter Battery Service
(Remote Keyless Entry).................... 25
Transmitter, Garage Door Opener
(HomeLink) ........................... 162
Transmitter Programming
(Remote Keyless Entry).................... 21
Transmitter, Remote Keyless Entry (RKE)........ 21
INDEX 513
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