2008 JEEP COMMANDER fuel pressure

CAUTION!
Overfilling or underfilling the crankcase will cause
aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
Refer to the Maintenance Schedule for recommended
engine oil change intervals.
Engine Oil Selection
For best performance and maximum protection for all
engines under all types of operating conditions, the
manufacturer only recommends engine oils that are API
Certified and meet the requirements of DaimlerChrysler
Material Standard MS-6395.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
Engine Oil Viscosity (3.7L/4.7L/5.7L Engines)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy. The engine oil filler
cap also shows the recommended engine oil viscosity for
your vehicle. For information on engine oil filler cap
location, refer to the ªEngine Compartmentº illustration
in this section.
390 MAINTAINING YOUR VEHICLE

Pay particular attention to the hoses nearest to high heat
sources such as the exhaust manifold. Inspect hose rout-
ing to be sure hoses do not touch any heat source or
moving component that may cause heat damage or
mechanical wear.
Insure nylon tubing in these areas has not melted or
collapsed. Inspect all hose connections such as clamps
and couplings to make sure they are secure and no leaks
are present. Components should be replaced immedi-
ately if there is any evidence of degradation that could
cause failure.
Fuel System Connections
Electronic Fuel Injection high pressure fuel systems are
designed with tubes and special connects, connections
and clamps which have unique material characteristics to
provide adequate sealing and resist attack by deterio-
rated gasoline.You are urged to use only the manufactures-specified
tubes, connections and clamps, or their equivalent in
material and specification, in any fuel system servicing.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the Maintenance Schedule in Section 8 for
suggested service 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.
MAINTAINING YOUR VEHICLE 407
7

²Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
²Under no circumstances should oil change intervals
exceed 6,000 miles (10,000 km) or 6 months, whichever
comes first.
Your dealer will reset the oil change indicator message
after completing the scheduled oil change. If this sched-
uled oil change is performed by someone other than your
dealer the message can be reset by referring to the steps
described under ªOil Change Requiredº in ªUse Factory
Settingsº of the EVIC section in this manual.
At Each Stop for Fuel
²Check the engine oil level about 5 minutes after a fully
warmed engine is shut off. Checking the oil level while
the vehicle is on level ground will improve the accu-
racy of the oil level reading. Add oil only when the
level is at or below the ADD or MIN mark.
²Check the windshield washer solvent and add if
required.
Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the battery and clean and tighten the terminals
as required.
²Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
²Check all lights and other electrical items for correct
operation.
MAINTENANCE SCHEDULES 441
8
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ABS (Anti-Lock Brake System)............188,302
Adding Fuel........................... 341
Adding Washer Fluid..................... 177
Adjustable Pedals....................... 135
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 393
Air Conditioner Maintenance............... 397
Air Conditioning........................ 259
Air Conditioning, Operating Tips............ 269
Air Conditioning, Rear Zone................ 267
Air Conditioning Refrigerant............... 398
Air Conditioning System.................. 259
Air Filter.............................. 393
Air Pressure, Tires....................... 316
Airbag................................ 48
Airbag Deployment....................... 55
Airbag Light.......................57,71,188
Airbag Maintenance....................... 57
Alarm, Panic............................ 24
Alarm (Security Alarm).................20,189Alarm System (Security Alarm)............... 20
Alignment and Balance................... 321
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 250
Antifreeze (Engine Coolant)................ 435
Disposal............................ 405
Anti-Lock Brake System (ABS)............139,302
Anti-Lock Warning Light.................. 188
Anti-Theft System.....................20,189
Appearance Care........................ 415
Assist, Hill Start........................ 148
Audio Systems (Radio).................... 239
Auto Down Power Windows................ 32
Automatic Dimming Mirror................. 78
Automatic Door Locks..................... 29
Automatic Headlights.................... 126
Automatic Temperature Control (ATC)......... 260
Automatic Transmission................283,411
Adding Fluid......................... 412
458 INDEX

Fluid and Filter Changes................. 411
Fluid Level Check................... 411,412
Fluid Type........................... 411
Special Additives...................... 414
Torque Converter...................... 288
Autostick............................. 285
Auxiliary Electrical Outlet (Power Outlet)...... 169
Auxiliary Power Outlet................... 169
Battery............................... 395
Emergency Starting..................... 374
Keyless Transmitter Replacement (RKE)....... 25
Saving Feature (Protection)............... 125
Belts, Drive............................ 392
Belts, Seat.............................. 39
Body Mechanism Lubrication............... 399
B-Pillar Location........................ 311
Brake Assist System...................... 141
Brake Control System, Electronic............. 139Brake System........................... 407
Anti-Lock (ABS)....................139,302
Hoses.............................. 408
Master Cylinder....................... 408
Parking............................. 300
Warning Light........................ 187
Brake/Transmission Interlock............... 283
Break-In Recommendations, New Vehicle........ 69
Bulb Replacement.....................427,428
Calibration, Compass..................... 204
Camera, Rear........................... 157
Capacities, Fluid........................ 435
Caps, Filler
Fuel................................ 341
Radiator (Coolant Pressure)............... 404
Car Washes............................ 415
Carbon Monoxide Warning...............70,337
Cargo Area Features...................... 174
INDEX 459
10

Pressure Cap......................... 404
Radiator Cap......................... 404
Selection of Coolant (Antifreeze).........402,435
Courtesy Lights......................... 130
Crankcase Emission Control System.......... 395
Cruise Light........................... 193
Cup Holder............................ 172
Customer Assistance..................... 448
Data Recorder, Event...................... 58
Daytime Running Lights................... 128
Dealer Service.......................... 388
Defroster, Rear Window................... 177
Defroster, Windshield................71,258,265
Diagnostic System, Onboard................ 385
Digital Video Disc (DVD) Player............. 239
Dimmer Switch, Headlight................. 129
Dipsticks
Automatic Transmission................. 412Oil (Engine).......................... 389
Power Steering........................ 398
Disabled Vehicle Towing................... 378
Disposal
Antifreeze (Engine Coolant)............... 405
Engine Oil........................... 391
Used Engine Fluids..................... 391
Door Locks............................. 28
Door Locks, Automatic.................... 29
Door Opener, Garage..................... 159
Drive Belts............................ 392
Driving............................... 296
Off-Pavement......................... 296
Off-Road............................ 296
DVD Player (Video Entertainment System)...... 253
E-85 Fuel............................. 337
Electric Remote Mirrors.................... 80
Electrical Outlet, Auxiliary (Power Outlet)...... 169
INDEX 461
10

Battery Saver......................... 125
Brake Assist Warning.................152,193
Brake Warning........................ 187
Bulb Replacement...................... 428
Center Mounted Stop................... 434
Courtesy/Reading..................... 130
Cruise.............................. 193
Daytime Running...................... 128
Dimmer Switch, Headlight.............124,129
Electronic Stability Program (ESP)
Indicator........................152,189,193
Electronic Throttle Control Warning......... 194
Fog ..........................128,194,431
Four-Wheel Drive Indicator............... 193
Fuses............................... 419
Hazard Warning Flasher................. 366
Headlight Switch...................... 125
Headlights........................... 428
Headlights On With Wipers............... 126High Beam Indicator.................... 187
Illuminated Entry....................... 21
Instrument Cluster..................125,127
Interior..........................127,130
Lights On Reminder.................... 128
Low Fuel............................ 195
LowTire ............................ 190
Malfunction Indicator (Check Engine)........ 187
Oil Pressure.......................... 189
Passing............................. 129
Reading............................. 130
Rear Servicing........................ 432
Rear Tail............................ 432
Seat Belt Reminder..................... 193
Security Alarm (Theft Alarm).............. 189
Service.............................. 428
Service Engine Soon (Malfunction Indicator) . . . 187
Side Marker.......................... 432
SmartBeams.......................... 126
INDEX 467
10

Modifications/Alterations, Vehicle............. 9
Monitor, Tire Pressure System............... 323
Mopar Parts.........................388,451
MP3 Player............................ 239
Multi-Displacement Engine System........... 306
Multi-Function Control Lever............... 124
Navigation Radio........................ 242
Navigation System....................... 242
New Vehicle Break-In Period................ 69
Occupant Restraints....................... 38
Octane Rating, Gasoline (Fuel)............333,334
Odometer..........................192,193
Trip ................................ 192
Off-Pavement Driving (Off-Road)..........296,414
Off-Road Driving (Off-Pavement)..........296,414
Oil Change Indicator..................... 200
Oil Change Indicator, Reset................. 200Oil, Engine............................ 389
Capacity............................ 435
Change Interval....................... 390
Dipstick............................. 389
Disposal............................ 391
Filter............................... 391
Filter Disposal........................ 391
Identification Logo..................... 390
Materials Added to..................... 391
Pressure Warning Light.................. 189
Recommendation...................390,435
Synthetic............................ 391
Viscosity..........................390,435
Onboard Diagnostic System..............385,386
Opener, Garage Door (HomeLinkt) ........... 159
Outside Rearview Mirrors.................. 79
Overdrive............................. 286
Overdrive OFF Switch.................... 286
Overhead Console....................... 158
INDEX 469
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