2004 JEEP GRAND CHEROKEE automatic transmission

speed. Additional traction and maximum pulling power
for loose, slippery road surfaces only. Do not exceed 25
mph (40 km/h).
Shifting Procedure
4 ALL TIME to 4 LO or 4 LO to 4 ALL TIME
With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift
the transmission into N (Neutral). While the vehicle iscoasting at 2 to 3 mph (3 to 5 km/h), shift the transfer
case lever firmly into the desired position. Do not pause
in transfer case N (Neutral).
NOTE:Pausing in transfer case N (Neutral) in vehicles
equipped with an automatic transmission may require
shutting the engine OFF to avoid gear clash while
completing the shift. If difficulty occurs, shift the trans-
mission into N (Neutral), hold foot on brake, and turn the
engine OFF. Make shift to desired mode.
NOTE:Shifting into or out of 4LO is possible with the
vehicle completely stopped, however difficulty may oc-
cur due to the mating clutch teeth not being properly
aligned. Several attempts may be required for clutch
teeth alignment and shift completion to occur. The pre-
ferred method is with the vehicle rolling 2 to 3 mph (3 to
5 km/h). Avoid attempting to engage or disengage 4LO
with the vehicle moving faster than 2 to 3 mph (3 to 5
km/h).
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²Do not ªrideº the brakes by resting your foot on the
pedal. This could overheat the brakes and result in
unpredictable braking action, longer stopping dis-
tances, or brake damage.
²When descending mountains or hills, repeated brak-
ing can cause brake fade with loss of braking control.
Avoid repeated heavy braking by downshifting the
transmission or locking out overdrive whenever pos-
sible.
²Engines may idle at higher speeds during warm-up,
which could cause rear wheels to spin and result in
loss of vehicle control. Be especially careful while
driving on slippery roads, in close-quarter maneuver-
ing, parking or stopping. Remember, always engage
4-wheel drive when driving on slippery roads (Selec-
Trac only). The Quadra-Trac II transfer case engages
four-wheel drive automatically when required.
²Do not drive too fast for road conditions, especially
when roads are wet or slushy. A wedge of water can
build up between the tire tread and the road. This
hydroplaning action can cause loss of traction, braking
ability, and control. Under such conditions, engage
4-wheel drive (Selec-Trac only).
²After going through deep water or a car wash, brakes
may become wet, resulting in decreased performance
and unpredictable braking action. Dry the brakes by
gentle, intermittent pedal action while driving at very
slow speeds.
ON-ROAD DRIVING TIPS
Utility vehicles have higher ground clearance and a
narrower track to make them capable of performing in a
wide variety of off-road applications. Specific design
characteristics give them a higher center of gravity than
ordinary cars.
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5

NDriveline And Steering Component
Lubrication..........................267
NBody Lubrication.....................267
NWindshield Wiper Blades................268
NWindshield Washers Ð Front And Rear.....268
NExhaust System......................269
NCooling System.......................269
NHoses And Vacuum/Vapor Harnesses.......274
NBrake System........................274
NAutomatic Transmission................277
NTransfer Case........................280
NFront/Rear Axle Fluid..................281NAppearance Care And Protection From
Corrosion...........................281
mFuse Panel...........................286
NInterior Fuses........................286
NUnderhood Fuses
(Power Distribution Center)..............288
mVehicle Storage........................289
mReplacement Bulbs......................289
mFluid Capacities........................291
mRecommended Fluids, Lubricants And Genuine
Parts................................292
NEngine.............................292
NChassis............................293
250 MAINTAINING YOUR VEHICLE

ONBOARD DIAGNOSTIC SYSTEM Ð OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the ªMalfunction Indicator Light.º It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
²Prolonged driving with the ªMalfunction Indica-
tor Lightº on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
²If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
MAINTAINING YOUR VEHICLE 253
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WARNING!
Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter. Do
not allow petroleum base fluid to contaminate the brake
fluid as seal damage will result.
Automatic Transmission
Selection of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission perfor-
mance. Use only manufacturer's recommended transmis-
sion fluid, refer to Recommended Fluids, Lubricants, andGenuine Parts for correct fluid type. It is important that
the transmission fluid be maintained at the prescribed
level using the recommended fluid.
CAUTION!
Using a transmission fluid other than the manufac-
turer's recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than the
manufacturer's recommended fluid will result in
more frequent fluid and filter changes. Refer to
Recommended Fluids, Lubricants, and Genuine
Parts for correct fluid type.
Fluid Level Check ± 4.0L Engines (42RE)
This fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is
heated to its normal operating temperature. Operation of
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the transmission with an improper fluid level will greatly
reduce the life of the transmission and of the fluid.
To check the automatic transmission fluid level properly,
the following procedure must be used:
1. The vehicle must be on level ground.
2. The engine should be running at curb idle speed for a
minimum of 60 seconds.
3. Fully apply parking brake.
4. Apply the brakes and shift the transmission into P
(Park).
5. The fluidMUSTbe checked with the transmission in
P (Park) to be sure that the fluid is accurate.
6. Wipe the dipstick clean and reinsert until seated.
Remove dipstick and note reading.At normal operating temperature (approximately 180É F
(82É C), the fluid level is correct if it is in the HOT region
(cross-hatched area) on the oil level indicator. The fluid
level indicator should be in the COLD region at 70É F (21É
C) fluid temperature.
If the fluid level is low, add sufficient fluid to bring to the
proper level. Refer to Recommended Fluids, Lubricants
and Genuine Parts for correct fluid type.
Fluid is added through the dipstick tube.
NOTE:To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated.
Fluid Level Check ± 4.7L Engines (5±45RFE)
Check the fluid level while the transmission is at normal
operating temperature 180ÉF (82ÉC). This occurs after at
278 MAINTAINING YOUR VEHICLE

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 gear selector momentarily in each gear
position ending with the lever in P (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 ªHOTº(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 (2) minutes for the oil to fully drain
into the transmission before rechecking the fluid level.
NOTE:If it is necessary to check the transmissionbelow
the operating temperature, the fluid level should be
between the two ªCOLDº (lower) holes on the dipstick
with the fluid at approximately 70ÉF (21ÉC) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the ªHOTº
(upper) reference holes when the transmission reaches
180ÉF (82ÉC). Remember it is best to check the level at the
normal operating temperature.
MAINTAINING YOUR VEHICLE 279
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Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission MopartATF+4 Automatic Transmission Fluid
Transfer Case Selec-Trac Models - MopartATF+4 Automatic Transmission Fluid. Quadra-Trac
Models - MopartTransfer Case Fluid (P/N 05016796)
Axle Differential (front-rear) MopartSynthetic Gear Lubricant or equivalent of SAE 75W-140 (API-GL5) if
equipped with a Vari-Loktfront axle. MopartGear Lubricant or equivalent of
SAE 80W-90 (API-GL5) if not equipped with a Vari-Loktfront axle. Mopart
Synthetic Gear Lubricant or equivalent of SAE 75W-140 (API-GL5) if equipped
with a Dana M35 or M44 Vari-Loktrear axle. MopartGear Lubricant or
equivalent of SAE 80W-90 (API-GL5) if equipped with a Dana M44 rear axle
without Vari-Lokt. For trailer towing applications, use a SAE 75W-140 Syn-
thetic Gear Lubricant in rear axle. Vari-Loktequipped axles require a friction
modifier additive.
Brake Master Cylinder MopartDOT 3, SAE J1703 should be used. If DOT 3, SAE J1703 brake fluid is
not available, then DOT 4 is acceptable. Use only recommended brake fluids.
Power Steering Reservoir MopartPower Steering Fluid (MS-5931)
Ball Joints, Prop Shafts, U-Joints,
Yokes, & Wheel BearingsMopartMulti-Purpose Lube NLGI Grade 2 EP, GC-LB
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