2010 JEEP GRAND CHEROKEE automatic transmission fluid

•transmission has reached normal operating
temperature.
NOTE: If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into Overdrive
and will automatically select the most desirable gear for
operation at this temperature. Normal operation will
resume when the transmission fluid temperature has
risen to a suitable level. Refer to the “Note” under
“Torque Converter Clutch” in this section.
During cold temperature operation you may notice de-
layed upshifts, depending on engine and transmission
temperature. This feature improves the warmup time of
the engine and transmission.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough, the “TRANSMISSION OVER TEMP” message may display, and the transmis-
sion may downshift out of Overdrive until the transmis-
sion cools down. After cool down, the transmission will
resume normal operation.
In high ambient temperatures with sustained high engine
speed and load, an upshift, followed shortly thereafter by
a downshift, may occur. The “TOW/HAUL Indicator
Light” will turn off. This is a normal part of the overheat
protection strategy when operating in the TOW/HAUL
mode.
The transmission will downshift from Overdrive, to the
most desirable gear, if the accelerator pedal is fully
pressed at vehicle speeds above approximately 35 mph
(56 km/h).
When to Use TOW/HAUL Mode – If Equipped
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the TOW/HAUL switch. This will improve
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STARTING AND OPERATING 249

3. Turn the engine off, and be sure to turn the ignition
switch to the LOCK position.
4. Wait approximately 10 seconds, then restart the en-
gine.
5. Move the shift lever to the desired gear range.
If the problem is no longer detected, the transmission will
return to normal operation. If the problem persists,
PARK, REVERSE, and NEUTRAL will continue to oper-
ate. Only second gear (3.7L engine) or third gear (5.7L
engine) will be available in the DRIVE position. Have the
transmission checked at your authorized dealer as soon
as possible.
Torque Converter Clutch
A feature, designed to improve fuel economy, has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally, at a calibrated speed, at light throttle. It engages athigher speeds under heavier acceleration. This may re-
sult in a slightly different feeling or response during
normal operation in high gear. When the vehicle speed
drops below a calibrated speed, or during acceleration,
the clutch automatically and smoothly disengages. The
feature is operational in Overdrive and in DRIVE.
NOTE:
•The torque converter clutch will not engage until the
transmission fluid and engine coolant are warm [usu-
ally after 1 to 3 miles (1.6 to 4.8 km) of driving].
Because the engine speed is higher when the torque
converter clutch is not engaged, it may seem as if the
transmission is not shifting into Overdrive when cold.
This is normal. Manually shifting (using the ERS shift
control) between 4 (direct gear) and 5/D (Overdrive
gear) positions will demonstrate that the transmission
is able to shift into and out of Overdrive. For vehicles
with 5.7L engines (which have two Overdrive gears),
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STARTING AND OPERATING 251

WARNING!
Continued operation with reduced power steering
assist could pose a safety risk to yourself and others.
Service should be obtained as soon as possible.
CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
Power Steering Fluid Check
The power steering system requires the use of MOPAR
Hydraulic System Power Steering Fluid or equivalent,
which meets Chrysler Material Standard MS-10838.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power
steering components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!
Do not use Automatic Transmission Fluid (ATF), or
other types of power steering fluids, when servicing
the power steering system of this vehicle. Damage to
the power steering system can result from the use of
the wrong power steering fluid.
264 STARTING AND OPERATING

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic.
Automatic Transmission
The DRIVE range can be selected when towing. How-
ever, if frequent shifting occurs while in this range, the
TOW/HAUL mode (if equipped), or a lower gear range,
should be selected.
NOTE:Using the TOW/HAUL mode (if equipped) or
selecting a lower gear range (using the Electronic Range
Select (ERS) feature) while operating the vehicle under
heavy operating conditions, will improve performance
and extend transmission life by reducing excessive shift-
ing and heat buildup. This action will also provide better
engine braking. The transmission fluid and filter should be changed if
you REGULARLY tow a trailer for more than 45 minutes
of continuous operation. Refer to “Maintenance Sched-
ule” for the proper maintenance intervals.
NOTE:
Check the transmission fluid level before towing
(5.7L engine).
Electronic Speed Control – If Equipped

Do not use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
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STARTING AND OPERATING 337

▫Brake System ....................... 385
▫ Front/Rear Axle Fluid ................. 387
▫ Transfer Case ....................... 388
▫ Automatic Transmission ............... 389
▫ Maintenance After Off-Road Driving ...... 392
▫ Appearance Care And Protection From
Corrosion .......................... 393
 Fuses .............................. 398
▫ Interior Fuses ....................... 398
▫ Underhood Fuses
(Power Distribution Center) ............. 401
▫
Underhood Fuses (Integrated Power Module). . 404
 Vehicle Storage ....................... 406
 Replacement Bulbs .................... 406 
Bulb Replacement ..................... 407
▫ High Intensity Discharge Headlamps (HID)
— If Equipped ...................... 407
▫ Halogen Headlamps — If Equipped ....... 408
▫ Front Turn Signal .................... 409
▫ Front Fog Lamp ..................... 410
▫ Rear Tail, Stop, Turn Signal, And Backup
Lamps ............................ 410
▫ Center High-Mounted Stop Lamp
(CHMSL) .......................... 412
 Fluid Capacities ...................... 413
 Fluids, Lubricants, And Genuine Parts ....... 414
▫ Engine ............................ 414
▫ Chassis ........................... 415
362 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 5.7L
1 — Engine Coolant Reservoir7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Battery
3 — Engine Oil Fill 9 — Engine Oil Dipstick
4 — Brake Fluid Reservoir 10 — Coolant Pressure Cap
5 — Power Distribution Center 11 — Air Cleaner Filter
6 — Integrated Power Module
364 MAINTAINING YOUR VEHICLE

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 the manufacturer’s recommended trans-
mission fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion. It is important that the transmission fluid be main-
tained 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
“Fluids, Lubricants, and Genuine Parts” in “Main-
taining Your Vehicle” for further information.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. In addition, avoid using transmission sealers as
they may adversely affect seals.
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MAINTAINING YOUR VEHICLE 389

Chassis
ComponentFluid, Lubricant, or Genuine Part
Automatic Transmission MOPARATF+4Automatic Transmission Fluid or equivalent licensed
ATF+4 product.
Transfer Case – NV140 Single Speed
Only MOPAR
ATF+4Automatic Transmission Fluid or equivalent licensed
ATF+4 product.
Transfer Case – NV245 Two Speed
Only MOPAR
NV 247/245 Transfer Case Lubricant or equivalent.
Axle Differential (Front-Rear) MOPAR Synthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or
equivalent with friction modifier additive.
Brake Master Cylinder MOPARDOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE
J1703 brake fluid is not available, then DOT 4 is acceptable. Use only rec-
ommended brake fluids or equivalent.
Power Steering Reservoir This system requires the use of MOPAR Hydraulic System Power Steer-
ing Fluid or equivalent, which meets Chrysler Material Standard MS-
10838.
7
MAINTAINING YOUR VEHICLE 415