2009 JEEP COMMANDER automatic transmission fluid

Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant, during summer, to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50%
concentration is recommended. Refer to Fluids, Lubri-
cants, and Genuine Parts in Section 7 for the proper
coolant type.
When using the air conditioner in extremely heavy traffic, in
hot weather, especially when towing a trailer, additional
engine cooling may be required. If this situation is encoun-
tered, operate the transmission in a lower gear to increase
engine RPM, coolant flow and fan speed. When stopped inheavy traffic, it may be necessary to shift into NEUTRAL
and depress the accelerator slightly for fast idle operation to
increase coolant flow and fan speed.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months, make
sure the air intake, located directly in front of the wind-
shield, is free of ice, slush, snow, or other obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will ensure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
284 UNDERSTANDING YOUR INSTRUMENT PANEL

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 also to the Note under
torque converter clutch, later 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 “TRANSMISSIONOVER 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. 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
depressed at vehicle speeds above approximately 35 mph
(56 km/h).
STARTING AND OPERATING 303
5

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.
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized dealer.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturers recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces.
PARKING BRAKE
To set the parking brake, pull the lever up as firmly as
possible. When the parking brake is applied with the
ignition ON, the Brake Warning Light in the instrument
cluster will light. To release the parking brake, pull up
slightly, press the center button, then lower the lever
completely.
318 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.
Towing Tips — 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 a
lower gear range 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 minutesof continuous operation. Refer to the “Maintenance
Schedule” in Section 8 for the proper maintenance inter-
vals.
NOTE:Check the transmission fluid level before towing
(4.7L and 5.7L engines).Towing Tips — 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.
STARTING AND OPERATING 391
5

▫Cooling System...................... 431
▫Brake System....................... 437
▫Front/Rear Axle Fluid................. 438
▫Transfer Case....................... 439
▫Automatic Transmission................ 440
▫Maintenance After Off-Road Driving....... 443
▫Appearance Care And Protection From
Corrosion.......................... 444
Fuses.............................. 449
▫Interior Fuses....................... 449
▫Underhood Fuses (Power Distribution
Center)............................ 451
▫Underhood Fuses
(Integrated Power Module).............. 455Vehicle Storage....................... 456
Replacement Bulbs..................... 457
Bulb Replacement..................... 458
▫Head Light......................... 458
▫Front Turn Signal.................... 460
▫Front Fog Light...................... 461
▫Rear Tail, Stop, Turn Signal, And Backup
Lights............................. 462
▫Center High Mounted Stop Light (CHMSL) . . 464
Fluids And Capacities................... 465
Fluids, Lubricants, And Genuine Parts....... 466
▫Engine............................ 466
▫Chassis............................ 467
414 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 4.7L
1 — Engine Coolant Reservoir 7 — Battery
2 — Automatic Transmission Dipstick 8 — Washer Fluid Reservoir
3 — Engine Oil Dipstick 9 — Engine Oil Fill
4 — Power Distribution Center 10 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 11 — Air Cleaner Filter
6 — Integrated Power Module 416 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 5.7L
1 — Engine Coolant Reservoir 7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Engine Oil Dipstick
3 — Power Distribution Center 9 — Engine Oil Fill
4 — Brake Fluid Reservoir 10 — Coolant Pressure Cap
5 — Integrated Power Module 11 — Air Cleaner Filter
6 — BatteryMAINTAINING YOUR VEHICLE 4177

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 this section for the 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
“Fluids, Lubricants, and Genuine Parts” in this sec-
tion for the correct fluid type.
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.
440 MAINTAINING YOUR VEHICLE