2010 JEEP GRAND CHEROKEE transmission

ONBOARD DIAGNOSTIC SYSTEM –
OBD II
Your vehicle is equipped with a sophisticated
onboard diagnostic system called OBD II. This
system monitors the performance of the emis-
sions, engine, and automatic transmission con-
trol systems. When these systems are operat-
ing properly, your vehicle will provide excellent
performance and fuel economy, as well as
engine emissions well within current govern-
ment regulations.
If any of these systems require service, the
OBD II system will turn on the “Malfunction
Indicator Light” (MIL). It will also store diagnos-
tic codes and other information to assist your
service technician in making repairs. Although
your vehicle will usually be drivable and not
need towing, see your authorized dealer for
service as soon as possible.
CAUTION!
•Prolonged driving with the MIL on could
cause further damage to the emission con-
trol system. It could also affect fuel
economy and drivability. The vehicle must
be serviced before any emissions tests can
be performed.
• If the MIL is flashing while the engine is
running, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system
determines that the fuel filler cap is
loose, improperly installed, or
damaged, a loose gascap indica-
tor will display in the EVIC telltale
display area. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Under-
standing Your Instrument Panel” for further in-
formation. Tighten the fuel filler cap properly
and press the SELECT button to turn off the message. If the problem continues, the mes-
sage will appear the next time the vehicle is
started.
A loose, improperly installed, or damaged fuel
filler cap may also turn on the Malfunction
Indicator Light (MIL).
REPLACEMENT PARTSUse of genuine MOPAR
parts for normal/
scheduled maintenance and repairs is highly
recommended to ensure the designed perfor-
mance. Damage or failures caused by the use
of non-MOPAR parts for maintenance and
repairs will not be covered by the manufactur-
er’s warranty.
MAINTENANCE PROCEDURESThe pages that follow contain the required
maintenance services determined by the engi-
neers who designed your vehicle.
Besides those maintenance items specified in
the fixed maintenance schedule, there are
other components which may require servicing
or replacement in the future.
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CAUTION!
•Failure to properly maintain your vehicle or
perform repairs and service when neces-
sary could result in more costly repairs,
damage to other components or negatively
impact vehicle performance. Immediately
have potential malfunctions examined by
an authorized dealership or qualified repair
center.
• Your vehicle has been built with improved
fluids that protect the performance and
durability of your vehicle and also allow
extended maintenance intervals. Do not
use chemical flushes in these components
as the chemicals can damage your engine,
transmission, power steering or air condi-
tioning. Such damage is not covered by the
New Vehicle Limited Warranty. If a flush is
needed because of component malfunc-
tion, use only the specified fluid for the
flushing procedure.Engine Oil – Gasoline Engines
Checking Oil Level
To assure proper lubrication of your vehicle’s
engine, the engine oil must be maintained at
the correct level. The best time to check the
engine oil level is about five minutes after a fully
warmed up engine is shut off or before starting
the engine after it has sat overnight.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
readings. Maintain the oil level in the SAFE level
range. Adding 1 U.S. Quart (0.95L) of oil when
the level is at the bottom of the SAFE range will
result in the level being at the top of the SAFE
range.
CAUTION!
Overfilling or underfilling the crankcase will
cause aeration or loss of oil pressure. This
could damage your engine.
Change Engine Oil
Refer to the “Maintenance Schedule” for the
proper maintenance intervals. NOTE:
Under no circumstances should oil change
intervals exceed 7,500 miles (12 000 km) or
six months whichever comes first.
Engine Oil Selection – Non ACEA
Categories
For best performance and maximum protection
under all types of operating conditions, the
manufacturer only recommends engine oils
that are API certified and meet the require-
ments of Chrysler Material Standard MS-6395.
American Petroleum Institute (API) Engine
Oil Identification Symbol
This symbol means
that the oil has
been certified by
the American Pe-
troleum Institute
(API). The manu-
facturer only rec-
ommends API Cer-
tified engine oils.
274

WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you uncon-
scious and can eventually poison you. To
avoid breathing CO, refer to “Safety Tips/
Exhaust Gas” in “Things To Do Before Starting
Your Vehicle” for further information.
CAUTION!
The catalytic converter requires the use of
unleaded fuel only. Leaded gasoline will de-
stroy the effectiveness of the catalyst as an
emissions control device and may seriously
reduce engine performance and cause seri-
ous damage to the engine.
Under normal operating conditions, the cata-
lytic converter will not require maintenance.
However, it is important to keep the engine
properly tuned to assure proper catalyst opera-
tion and prevent possible catalyst damage.
CAUTION!
Damage to the catalytic converter can result if
your vehicle is not kept in proper operating
condition. In the event of engine malfunction,
particularly involving engine misfire or other
apparent loss of performance, have your ve-
hicle serviced promptly. Continued operation
of your vehicle with a severe malfunction
could cause the converter to overheat, result-
ing in possible damage to the converter and
vehicle.
NOTE:
Intentional tampering with emissions con-
trol systems can result in civil penalties
being assessed against you.WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such ma-
terials might be grass or leaves coming into
contact with your exhaust system. Do not park
or operate your vehicle in areas where your
exhaust system can contact anything that can
burn.
In unusual situations involving grossly malfunc-
tioning engine operation, a scorching odor may
suggest severe and abnormal catalyst over-
heating. If this occurs, stop the vehicle, turn off
the engine and allow it to cool. Service, includ-
ing a tuneup to manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
• Do not shut off the engine or interrupt the
ignition, when the transmission is in gear and
the vehicle is in motion.
• Do not try to start the engine by pushing or
towing the vehicle.
279

CAUTION!
When installing plugs, do not overtighten. You
could damage them and cause them to leak.
Selection of Lubricant
Use only the manufacturer’s recommended
fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information.
Automatic Transmission
Selection of Lubricant
It is important that the proper lubricant is used
in the transmission to assure optimum transmis-
sion performance. Use only the manufacturer’s
recommended transmission fluid. Refer to “Flu-
ids, Lubricants, and Genuine Parts” in “Main-
taining Your Vehicle” for further information. It is
important that the transmission fluid be main-
tained at the prescribed level using the recom-
mended fluid.
CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift qual-
ity and/or torque converter shudder. Using a
transmission fluid other than the manufactur-
er’s recommended fluid will result in more
frequent fluid and filter changes. Refer to
“Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further informa-
tion.
Special Additives
Automatic Transmission Fluid (ATF) is an engi-
neered product and its performance may be
impaired by supplemental additives. Therefore,
do not add any fluid additives to the transmis-
sion. 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.CAUTION!
Do not use chemical flushes in your transmis-
sion as the chemicals can damage your trans-
mission components. Such damage is not
covered by the New Vehicle Limited Warranty.
Fluid Level Check – 3.6L and 3.0L Diesel
Engine
Regular fluid level checks are not required. For
this reason, the dipstick is omitted.
If you notice fluid loss or transmission malfunc-
tion, have your authorized dealer check the
transmission fluid level.
285

CAUTION!
•Using a transmission fluid other than the
manufacturer’s recommended fluid may
cause deterioration in transmission shift
quality and/or torque converter shudder.
Using a transmission fluid other than that
recommended by the manufacturer will re-
sult in more frequent fluid and filter
changes. Refer to “Fluids, Lubricants, and
Genuine Parts” in “Maintaining Your Ve-
hicle” for further information.
• The fluid level is preset at the factory and it
does not require adjustment under normal
operating conditions. If a transmission fluid
leak occurs, visit your authorized dealer
immediately. Severe damage to the trans-
mission may occur. Your authorized dealer
has the proper tools to adjust the fluid level
accurately.
Fluid Level Check – 5.7L Engine
Check the fluid level while the transmission is at
normal operating temperature. This occurs af-
ter at least 15 miles (25 km) of driving. At normal operating temperature the fluid cannot
be held comfortably between the fingertips.
To check the fluid level properly, the following
procedure must be used:
1. Operate the engine at idle speed and nor-
mal operating temperature.
2. The vehicle must be on level ground.
3. Fully apply the parking brake, and press the
brake pedal.
4. Place the shift lever momentarily in each
gear position ending with the shift lever in
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 “HOT” (upper) reference holes
on the dipstick at normal operating tempera-
ture. The fluid level is only valid if there is a solid
coating of oil 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 minutes for the oil to fully drain into the
transmission before rechecking the fluid level.
NOTE:
If it is necessary to check the transmission
below the operating temperature, the fluid
level should be between the two “COLD”
(lower) holes on the dipstick with the fluid at
approximately 70°F (21°C) (room tempera-
ture). If the fluid level is correctly estab-
lished at room temperature, it should be
between the “HOT” (upper) reference holes
when the transmission reaches 180°F
(82°C). Remember it is best to check the
level at the normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below
50°F (10°C) it may not register on the dipstick.
Do not add fluid until the temperature is
elevated enough to produce an accurate
reading.
7. Check for leaks. Release parking brake.
To prevent dirt and water from entering the
transmission after checking or replenishing
286

FUSES
Totally Integrated Power Module
The totally integrated power module (TIPM) is
located in the engine compartment. This center
contains cartridge fuses and mini fuses. A
description of each fuse and component may
be stamped on the inside cover, otherwise the
cavity number of each fuse is stamped on the
inside cover that corresponds to the following
chart.
Cav-ity Car-
tridge Fuse Mini
Fuse Description
J01 40 Amp Green Air Suspension
J02 30 Amp Pink Power Liftgate
Module
J03 30 Amp Pink Trailer Tow
J04 25 Amp Natural Driver Door Node
J05 25 Amp Natural Passenger Door
Node
J06 40 Amp Green Antilock Brakes
Pump/Stability
Control System
J07 30 Amp Pink Antilock Brakes
Valve/Stability
Control System
J08 40 Amp Green Power Seat
J09 30 Amp Pink E-Brake
J10 30 Amp Pink Headlamp Wash
Relay ContactCav-
ity Car-
tridge Fuse Mini
Fuse Description
J11 30 Amp Pink Drive Train Control
Module
J12 30 Amp Pink Rear Defroster
J13 60 Amp Yellow Main Ignition Off
Draw (IOD)
J14 20 Amp Blue Trailer Tow Lamps/
Park Lamps
J15 40 Amp Green Front Cabin Fan/
Blower
J17 40 Amp Green Starter Motor So-
lenoid
J18 20 Amp Blue Powertrain Control
Module/Powertrain
Control Module
Transmission
Range
J19 60 Amp Yellow Radiator Fan Mo-
tor HI/Radiator
Fan Motor Low
J20 30 Amp Pink Front Wiper
Totally Integrated Power Module (TIPM)
290

Cav-ity Car-
tridge Fuse Mini
Fuse Description
M24 25 Amp NaturalRear Wiper
M25 20 Amp YellowFuel Pump Motor
Output/Diesel Lift
Pump (Export
Only)
M26 10 Amp RedDriver Door Switch
Bank
M27 10 Amp RedIgnition Switch/
Wireless Control
Module/Keyless
Entry Module
M28 15 Amp BluePowertrain
Controller/
Transmission Con-
troller
M29 10 Amp RedTire Pressure
Monitor
M30 15 Amp BlueJ1962 Diag Con-
nector
M31 20 Amp YellowBackup LampsCav-
ity Car-
tridge Fuse Mini
Fuse Description
M32 10 Amp RedOccupant Re-
straint Controller
M33 10 Amp RedPowertrain
Controller/
Transmission Con-
troller
M34 10 Amp RedPark Assist
Module/Climate
Control System
Module/Infra Red
Sensor/Compass
Module
M35 15 Amp BlueLeft Rear
Parklamps
M36 20 Amp YellowPower Outlet
M37 10 Amp RedAntilock Brakes/
Stability Control
System Module
M38 25 Amp NaturalAll Door Lock
&UnlockCAUTION!
•
When installing the totally integrated power
module cover, it is important to ensure the
cover is properly positioned and fully
latched. Failure to do so may allow water to
get into the totally integrated power module
and possibly result in a electrical system
failure.
• When replacing a blown fuse, it is important
to use only a fuse having the correct am-
perage rating. The use of a fuse with a
rating other than indicated may result in a
dangerous electrical system overload. If a
properly rated fuse continues to blow, it
indicates a problem in the circuit that must
be corrected.
VEHICLE STORAGEIf you are leaving your vehicle dormant for more
than 21 days you may want to take steps to
protect your battery. You may:
• Remove fuse #27 in the Totally Integrated
Power Module (TIPM) labeled Ignition-Off
Draw (IOD#1).
292

Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission MOPARATF+4 Automatic Transmission Fluid or equivalent licensed ATF+4 product.
Transfer Case MOPAR ATF+4 Automatic Transmission Fluid or equivalent licensed ATF+4 product.
Axle Differential (Front-Rear) MOPAR Synthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or equivalent with friction
modifier additive.
Axle Differential (Rear) – 5.7L Engine With Elec-
tronic Limited-Slip Differential (ELSD) MOPAR
Synthetic Gear & Axle Lubricant SAE 75W-90 (API-GL5) or equivalent.
Axle Differential (Rear) – 5.7L Engine Without
Electronic Limited-Slip Differential (ELSD) MOPAR
Synthetic Gear & Axle Lubricant SAE 75W-85 (API-GL5) or equivalent.
Brake Master Cylinder MOPAR DOT 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 recommended brake fluids or equivalent.
Power Steering Reservoir – 3.6L Engine and
3.0L Diesel Engine MOPAR
Hydraulic Fluid or equivalent meeting MS-1165, such as Fuchs EG ZH 3044 or Pentosin
CHF 11s.
Power Steering Reservoir – 5.7L Engine MOPAR Power Steering Fluid +4, MOPAR ATF+4 Automatic Transmission Fluid or equivalent
licensed ATF+4 product.
300
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