Page 405 of 508
MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment — 5.7L............. 405
Onboard Diagnostic System (OBD II)....... 406
▫Loose Fuel Filler Cap Message........... 406
Emissions Inspection And Maintenance
Programs............................ 407
Replacement Parts..................... 408
Dealer Service........................ 409
Maintenance Procedures................. 409
▫Engine Oil......................... 410▫Engine Oil Filter..................... 412
▫Engine Air Cleaner Filter............... 413
▫Maintenance-Free Battery.............. 414
▫Air Conditioner Maintenance............ 415
▫Front Prop Shaft Lubrication – Four-Wheel
Drive Models....................... 416
▫Body Lubrication.................... 417
▫Windshield Wiper Blades............... 417
▫Adding Washer Fluid................. 418
7
Page 412 of 508

CAUTION! (Continued)
•Your vehicle has been built with improved fluids
that protect the performance and durability of
your vehicle and also allow extended maintenance
intervals. Do not use chemical flushes in these
components as the chemicals can damage your
engine, transmission, power steering or air condi-
tioning. Such damage is not covered by the New
Vehicle Limited Warranty. If a flush is needed
because of component malfunction, use only the
specified fluid for the flushing procedure.
Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. Check
the oil level at regular intervals, such as every fuel stop.The best time to check the engine oil level is about five
minutes after a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always
maintain the oil level within the SAFE zone on the
dipstick. Adding one quart of oil when the reading is at
the bottom of the SAFE zone will result in a reading at the
top of the safe zone on these engines.
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
410 MAINTAINING YOUR VEHICLE
Page 418 of 508

WARNING!
•Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs. Refer to
Section 3 of the Warranty Information Book, lo-
cated on the DVD, for further warranty informa-
tion.
•The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced repairman.NOTE:Use only manufacturer approved A/C System
Sealers, Stop Leak Products, Seal Conditioners, Compres-
sor Oil, or Refrigerants.
Refrigerant Recovery And Recycling
R-134a Air Conditioning Refrigerant is a hydrofluoro-
carbon (HFC) that is endorsed by the Environmental
Protection Agency (EPA) and is an ozone-saving product.
However, the manufacturer recommends that air condi-
tioning service be performed by authorized dealers or
other service facilities using recovery and recycling
equipment.
Front Prop Shaft Lubrication – Four-Wheel Drive
Models
Lubricate the front driveshaft grease fitting at each oil
change. Refer to the “Maintenance Schedule” for the
proper maintenance intervals. Use MOPARType MS-
6560 (lithium-based grease), or equivalent.
416 MAINTAINING YOUR VEHICLE
Page 435 of 508

Fluid Level Check
The fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is at
normal operating temperature. Operation of the trans-
mission with an improper fluid level will greatly reduce
the life of the transmission and of the fluid. Check the
fluid level whenever the vehicle is serviced.
Fluid Level Check – 5.7L Engine
Check the fluid level while the transmission is at normal
operating temperature 82°C (180°F). This occurs after at
least 15 miles (25 km) of driving. At normal operating
temperature the fluid cannot be held comfortably be-
tween the fingertips.
To check the automatic transmission fluid level properly,
the following procedure must be used:
1. Operate the engine at idle speed and normal operating
temperature.2. The vehicle must be on level ground.
3. Fully apply the parking brake and press the brake
pedal.
4. Place the shift lever momentarily into each gear posi-
tion ending with the lever in PARK.
5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the “HOT”
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that solid coating of oil is seen on
both sides of the dipstick. If the fluid is low, add as
required into the dipstick tube.Do not overfill.After
adding any quantity of oil through the oil fill tube, wait
a minimum of two minutes for the oil to fully drain into
the transmission before rechecking the fluid level.
7
MAINTAINING YOUR VEHICLE 433
Page 489 of 508

Automatic Transmission
Adding Fluid....................... 433
Fluid and Filter Changes............... 434
Fluid Level Check.................432,433
FluidType ......................432,455
Shifting ........................... 284
Special Additives..................... 432
AxleFluid .......................430,431,455
Axle Lubrication (Axle Fluid)............430,431
B-Pillar Location........................ 320
Battery............................... 414
Keyless Transmitter Replacement (RKE)..... 25
Saving Feature (Protection).............. 152
Belts, Seat............................ 40,80
Body Builders Guide....................... 6
Body Mechanism Lubrication............... 417
Brake Fluid.........................428,455Brake System........................312,427
Anti-Lock (ABS)..................... 313
Fluid Check........................ 428
Master Cylinder..................... 428
Parking........................... 310
Warning Light....................... 198
Brake/Transmission Interlock............... 284
Bulb Replacement....................... 447
Bulbs,Light .......................... 82,446
Cab Top Clearance Lights.................. 451
Calibration, Compass..................... 216
Capacities, Antifreeze (Engine Coolant)........ 453
Capacities, Fluid........................ 453
Caps, Filler
Oil (Engine)........................ 412
Power Steering...................... 309
Radiator (Coolant Pressure)............. 424
Car Washes............................ 435
10
INDEX 487
Page 493 of 508

Fluid Leaks............................. 82
Fluid Level Checks
Automatic Transmission................ 433
Brake............................. 428
Power Steering...................... 309
Fluid, Brake........................... 455
Fluids, Lubricants and Genuine Parts.......... 454
Fog Lights.......................150,202,449
Four Wheel Drive....................... 294
Four-Way Hazard Flasher.................. 380
Freeing A Stuck Vehicle................... 396
Front Axle (Differential)................... 430
Fuel................................. 341
Adding........................... 346
Diesel............................. 454
Filler Cap (Gas Cap).................. 347
Filter ............................. 454
Gauge............................ 190
Light ............................. 197Octane Rating....................... 341
Requirements....................... 341
Tank Capacity....................... 453
Fuses................................ 440
Gas Cap (Fuel Filler Cap)...............347,406
Gasoline (Fuel)......................... 341
Gasoline, Reformulated................... 342
Gauges
Coolant Temperature.................. 190
Fuel.............................. 190
Oil Pressure........................ 193
Speedometer........................ 191
Tachometer......................... 190
Voltmeter.......................... 198
Gear Ranges........................... 285
Gear Select Lever Override................. 398
General Information.................. 18,25,124
Glass Cleaning.......................... 439
10
INDEX 491