MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 6.4L ...........447
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . . .448
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ........................ .448
▫ Loose Fuel Filler Cap Message .............449
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS .......................... .449
REPLACEMENT PARTS ...................450
DEALER SERVICE ...................... .451
MAINTENANCE PROCEDURES .............451
▫ Engine Oil .......................... .452
▫ Engine Oil Filter ...................... .454
▫ Engine Air Cleaner Filter .................454
▫ Accessory Drive Belt Inspection ............456
▫ Maintenance-Free Battery .................457 ▫
Air Conditioner Maintenance ..............458
▫ Front Prop Shaft Lubrication — Four-Wheel Drive
Models ............................. .464
▫ Body Lubrication ..................... .465
▫ Windshield Wiper Blades .................466
▫ Adding Washer Fluid ...................469
▫ Exhaust System ....................... .469
▫ Cooling System ....................... .471
▫ Brake System ........................ .475
▫ Rear Axle And 4x4 Front Driving Axle Fluid
Level .............................. .477
▫ Transfer Case ........................ .478
▫ Automatic Transmission — If Equipped ......478
▫ Appearance Care And Protection From
Corrosion ........................... .481
7
Lubricant Selection
Refer to “Fluids, Lubricants, And Genuine Parts” in “Main-
taining Your Vehicle” for further information.
NOTE:The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials DO NOT REQUIRE any lim-
ited slip oil additive (friction modifiers).
NOTE: Slight noise and mild shuddering may be evident
while turning a vehicle with limited slip differential on
concrete or dry pavement. These conditions should be
considered normal operation of the limited slip differential.
Transfer Case
Drain And Refill
Refer to the “Maintenance Schedule” for the proper main-
tenance intervals.
Lubricant Selection
Refer to “Fluids, Lubricants, And Genuine Parts” in “Main-
taining Your Vehicle” for further information.
Fluid Level Check
This fluid level can be checked by removing the filler plug.
The fluid level should be to the bottom edge of the filler
plug hole with the vehicle in a level position.
Automatic Transmission — If Equipped
Selection Of Lubricant
It is important to use the proper transmission fluid to
ensure optimum transmission performance and life. Use
only the manufacturer ’s specified transmission fluid. Refer
to “Fluids, Lubricants, And Genuine Parts” in this section
for fluid specifications. It is important to maintain the
transmission fluid at the correct level using the recom-
mended fluid. No chemical flushes should be used in any
transmission; only the approved lubricant should be used.
CAUTION!
Using a transmission fluid other than the manufactur-
er ’s recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder, and will require more frequent fluid and
filter changes. Refer to “Fluids, Lubricants, And Genu-
ine Parts” in this section for fluid specifications.
478 MAINTAINING YOUR VEHICLE
Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis-
sion Fluid (ATF) is an engineered product and its perfor-
mance may be impaired by supplemental additives. There-
fore, do not add any fluid additives to the transmission.
Avoid using transmission sealers as they may adversely
affect seals.
CAUTION!
Do not use chemical flushes in your transmission as
the chemicals can damage your transmission compo-
nents. Such damage is not covered by the New Vehicle
Limited Warranty.
Fluid Level Check
Check the fluid level when the engine is fully warmed up
and the transmission fluid is at normal operating tempera-
ture. Driving 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 — Procedure
It is best to check the fluid level when the transmission is
at normal operating temperature (170-180°F / 77-82°C for
66RFE transmission, or 158–176°F / 70–80°C for AS66RC
transmission). This normally occurs after at least 15 miles
(25 km) of driving. At normal operating temperature the
fluid cannot be held comfortably between the fingertips.
You can read the transmission sump temperature in the
instrument cluster display (refer toInstrument Cluster
Display” in “Understanding Your Instrument Panel” for
further information).
Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the instru- ment cluster display, and operate the vehicle as required
to reach the normal operating temperature. If the trans-
mission is not functioning properly, or the vehicle
cannot be driven, see the NOTE and CAUTION below
about checking the fluid level at colder temperatures.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60 seconds, and leave the engine running for the rest of this
procedure.
7
MAINTAINING YOUR VEHICLE 479
Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission (6.4L Engine with
66RFE Transmission) (For Diesel Engine See
Diesel Supplement) Use only ATF+4 Automatic Transmission Fluid. Failure to use ATF+4 fluid
may affect the function or performance of your transmission. We recom-
mend MOPAR ATF+4 fluid.
Automatic Transmission (6.4L Engine with
AS66RC Transmission) Use only MOPAR ASRC Automatic Transmission Fluid or equivalent.
Failure to use the proper fluid may affect the function or performance of
your transmission.
Transfer Case We recommend you use MOPAR BW44-44 Transfer Case Fluid.
Front and Rear Axle Fluid (4500) We recommend you use GL-5 SAE 75W-85 Synthetic (MS-9763).
Front and Rear Axle Fluid (5500) We recommend you use GL-5 SAE 75W-90 Synthetic (MS-9763).
Brake Master Cylinder We recommend you use MOPAR DOT 3 and SAE J1703. If DOT 3 brake
fluid is not available, then DOT 4 is acceptable.
Power Steering Reservoir We recommend you use MOPAR Power Steering Fluid +4, MOPAR ATF+4
Automatic Transmission Fluid.
502 MAINTAINING YOUR VEHICLE
Maintenance Chart
Required Maintenance
Refer to the Maintenance Schedules on the following pages
for required maintenance.
At Every Oil Change Interval As Indicated By OilChange Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular
wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and
park brake.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
• Lube the front drive shaft fitting.
8
MAINTENANCE SCHEDULES 505
Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Change the automatic transmis-
sion fluid (AS66RC Transmission
Only). XX X
Change the automatic transmis-
sion fluid and sump filter (AS66RC
Transmission Only). XX
Change the automatic transmis-
sion fluid and filter(s) (66RFE
Transmission Only), if using your
vehicle for police, taxi, fleet, or fre-
quent trailer towing. XX
Change the automatic transmis-
sion fluid and filter(s) (66RFE
transmission). X
Inspect the transfer case fluid,
change for any of the following:
police, taxi, fleet, or frequent trailer
towing. XX X X X
8
MAINTENANCE SCHEDULES 507
Adding Engine Coolant (Antifreeze).............473
Adding Fuel ............................. .400
Additives, Fuel ........................... .398
Adjust Down .............................115,116
Forward ............................115,116
Rearward ...........................115,116
Up................................115,116
Adjustable Pedals ......................... .142
Air Bag Air Bag Operation .........................58
Air Bag Warning Light .....................55
Enhanced Accident Response ..............68, 444
Event Data Recorder (EDR) .................444
If A Deployment Occurs ....................67
Knee Impact Bolsters .......................58
Maintaining Your Air Bag System ..............69
Side Air Bags ......................... .58, 62
Transporting Pets .........................93
Air Bag Light ....................... .55, 96, 201
Air Bag Maintenance .........................69
Air Cleaner, Engine (Engine Air Cleaner Filter) ......454
Air Conditioner Maintenance ..................458
Air Conditioning .......................... .277
Air Conditioning Controls ....................277 Air Conditioning Filter
...................292, 459
Air Conditioning, Operating Tips ...............291
Air Conditioning Refrigerant ...............458, 459
Air Conditioning System ...............277, 291, 458
Air Pressure, Tires ......................... .377
Alarm, Panic ...............................24
Alarm (Security Alarm) ....................19, 203
Alarm System (Security Alarm) .................19
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ...................472
Capacities ............................. .499
Disposal .............................. .474
Anti-Lock Brake System (ABS) .................353
Appearance Care .......................... .481
Ashtray ................................ .177
Assist, Hill Start .......................... .355
Auto
Down Power Windows ...................38
Automatic Door Locks ........................32
Automatic Headlights ...................... .130
Automatic High Beams ..................... .132
Automatic Temperature Control (ATC) ...........291
Automatic Transmission ..................... .478
Adding Fluid .......................... .480
Fluid And Filter Changes ...................481
Fluid Level Check ....................... .479
516 INDEX
Exhaust Gas Caution.....................95, 399
Exhaust System ........................ .95, 469
Exterior Lighting .......................... .130
Exterior Lights .............................98
Filters Air Cleaner ............................ .454
Air Conditioning .....................292, 459
Engine Fuel ........................... .500
Engine Oil ......................... .454, 500
Engine Oil Disposal ...................... .453
Flashers Turn Signal ...................... .98, 137, 220
Flat Tire Stowage .......................... .435
Flooded Engine Starting ..................... .323
Fluid, Brake ............................. .502
Fluid Capacities ........................... .499
Fluid Leaks ...............................98
Fluid Level Checks Automatic Transmission ....................479
Brake ................................ .476
Power Steering ......................... .350
Fluids, Lubricants And Genuine Parts ............500
Fog Lights ........................ .133, 216, 496
Fold Flat Load Floor ....................... .187Four-Way Hazard Flasher
.....................426
Four Wheel Drive ......................... .338
Freeing A Stuck Vehicle ..................... .439
Front Axle (Differential) ..................... .477
Fuel ................................... .396
Adding .............................. .400
Additives ............................. .398
Clean Air ............................. .396
Ethanol .............................. .397
Filler Cap (Gas Cap) ..................... .400
Filter ................................ .500
Gasoline .............................. .396
Light ................................ .214
Materials
Added ........................ .398
Methanol ............................. .397
Octane Rating .......................... .396
Requirements .......................... .396
Tank Capacity .......................... .499
Fuses .................................. .486
Garage Door Opener (HomeLink) ............165, 170
Gas Cap (Fuel Filler Cap) .................400, 449
Gasoline, Clean Air ........................ .396
Gasoline (Fuel) ........................... .396
Gasoline, Reformulated ..................... .396
520 INDEX