Page 524 of 916

the upper gears. When the vehicle speed drops or during
some accelerations, the clutch automatically disengages.
NOTE:
•The torque converter clutch will not engage, until the
transmission fluid and engine coolant are warm [usu-
ally after 1 to 3 miles (2 to 5 km) of driving]. Because
the engine speed is higher when the torque converter
clutch is not engaged, it may seem as if the transmis-
sion is not shifting into Overdrive when cold. This is
normal. Using the Electronic Range Select (ERS) shift
control, when the transmission is sufficiently warm,
will demonstrate that the transmission is able to shift
into and out of Overdrive.
•If the vehicle has not been driven for several days, the
first few seconds of operation after shifting the trans-
mission into gear may seem sluggish. This is due to the
fluid partially draining from the torque converter into
the transmission. This condition is normal and will notcause damage to the transmission. The torque con-
verter will refill within five seconds after starting the
engine.
FOUR-WHEEL DRIVE OPERATION — IF
EQUIPPED
Four-wheel drive trucks are equipped with either a manu-
ally shifted transfer case or an electronically shifted transfer
case. Refer to the operating instructions for your transfer
case, located in this section for further information.
Manually Shifted Transfer Case — If Equipped
The transfer case provides four mode positions:
•Two-wheel drive high range (2H)
•Four-wheel drive high range (4H)
•Neutral (N)
•Four-wheel drive low range (4L)
522 STARTING AND OPERATING
Page 718 of 916

CAUTION!
•Towing with the rear wheels on the ground will
cause severe transmission damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
•Do not disconnect the driveshaft because fluid may
leak from the transmission, causing damage to
internal parts.
Recreational Towing — Four-Wheel Drive Models
NOTE:Both the manual shift and electronic shift transfer
cases must be shifted into NEUTRAL (N) for recreational
towing. Automatic transmissions must be shifted into
PARK for recreational towing. Manual transmissions
must be placed in gear (NOT in NEUTRAL) for recre-
ational towing. Refer to the following for the proper
transfer case NEUTRAL (N) shifting procedure for your
vehicle.
CAUTION!
•DO NOT dolly tow any 4WD vehicle. Towing with
only one set of wheels on the ground (front or rear)
will cause severe transmission and/or transfer case
damage. Tow with all four wheels either ON the
ground, or OFF the ground (using a vehicle trailer).
(Continued)
716 STARTING AND OPERATING
Page 719 of 916

CAUTION!(Continued)
•Tow only in the forward direction. Towing this
vehicle backwards can cause severe damage to the
transfer case.
•Automatic transmissions must be placed in PARK
for recreational towing.
•Manual transmissions must be placed in gear (not
in Neutral) for recreational towing.
•Before recreational towing, perform the procedure
outlined under “Shifting Into NEUTRAL (N)” to be
certain that the transfer case is fully in NEUTRAL
(N). Otherwise, internal damage will result.
•Towing this vehicle in violation of the above re-
quirements can cause severe transmission and/or
transfer case damage. Damage from improper tow-
ing is not covered under the New Vehicle Limited
Warranty.
(Continued)
CAUTION!(Continued)
•Do not disconnect the rear driveshaft because fluid
will leak from the transfer case, causing damage to
internal parts.
•Do not use a bumper-mounted clamp-on tow bar
on your vehicle. The bumper face bar will be
damaged.
Shifting Into NEUTRAL (N)
Use the following procedure to prepare your vehicle for
recreational towing.
WARNING!
You or others could be injured or killed if you leave
the vehicle unattended with the transfer case in the
NEUTRAL (N) position without first fully engaging
(Continued)
5
STARTING AND OPERATING 717
Page 788 of 916

▫Adding Washer Fluid..................811
▫Exhaust System......................812
▫Cooling System......................815
▫Brake System........................823
▫Rear Axle And 4x4 Front Driving Axle Fluid
Level..............................825
▫Transfer Case........................826
▫Automatic Transmission................826
▫Appearance Care And Protection From
Corrosion...........................830
FUSES..............................838
▫Power Distribution Center...............839
VEHICLE STORAGE....................848REPLACEMENT BULBS.................849
BULB REPLACEMENT..................850
▫Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park
And Turn — If Equipped...............851
▫Fog Lamps — If Equipped..............853
▫Rear Tail/Stop, Turn Signal And Backup Lamps
..................................853
▫Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp.........................855
▫Cab Top Clearance Lamps — If Equipped. . . .857
▫Rear Lamp Bar ID Marker (Dual Rear Wheels) —
If Equipped..........................859
▫Side Marker Lamps (Dual Rear Wheels) — If
Equipped...........................860
786 MAINTAINING YOUR VEHICLE
Page 828 of 916

Your Vehicle” for further information. The MOPAR Lim-
ited Slip Additive should be added to the gear lubricant
whenever a fluid change is made to an axle equipped
with a Limited Slip Differential.
2500/3500 Model axlesDO NOT REQUIREany limited
slip oil additive (friction modifiers).
NOTE:When refilling an axle with a Limited Slip Differ-
ential, (which requires a Limited Slip Additive), the
Limited Slip Additive should be added before the gear
lubricant is added to insure proper additive fill.
Transfer Case
Drain And Refill
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining 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
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
recommended fluid. No chemical flushes should be used
826 MAINTAINING YOUR VEHICLE
Page 869 of 916
Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission – Eight-Speed Automatic Use only MOPAR ZF 8&9 Speed ATF Automatic Trans-
mission Fluid, or equivalent. Failure to use the correct
fluid may affect the function or performance of your
transmission.
Automatic Transmission – Six-Speed Automatic with
Gasoline Engine (For Diesel Engine see Diesel Supple-
ment)Use only ATF+4 Automatic Transmission Fluid. Failure
to use ATF+4 fluid may affect the function or perfor-
mance of your transmission. We recommend MOPAR
ATF+4 fluid.
Transfer Case We recommend you use MOPAR BW44–44 Transfer
Case Fluid.
Front Axle – 1500 Four-Wheel Drive Models We recommend you use MOPAR GL-5 Synthetic Axle
Lubricant SAE 75W-85.
7
MAINTAINING YOUR VEHICLE 867
Page 876 of 916
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
Inspect the brake linings, replace
as necessary.XXX X X X X
Adjust parking brake as neces-
sary.XXX X X X X
Inspect transfer case fluid. X X X
Additional Maintenance
Replace engine air filter. X X X X X
Replace spark plugs.** X
Flush and replace the engine
coolant at 10 years or 150,000
miles (240,000 km) whichever
comes first.XX
874 MAINTENANCE SCHEDULES
Page 878 of 916
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
Inspect the transfer case fluid,
change for any of the following:
police, taxi, fleet, or frequent
trailer towing.XX
Change the transfer case fluid. X
Inspect and replace PCV valve if
necessary.X
** The spark plug change interval is mileage based only,
yearly intervals do not apply.
876 MAINTENANCE SCHEDULES