2012 JEEP GRAND CHEROKEE engine

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MAINTAINING YOUR VEHICLE
•ENGINE COMPARTMENT — 3.6L ................. 298
• ENGINE COMPARTMENT — 5.7L ................. 299
• ENGINE COMPARTMENT – 3.0L DIESEL ............ 300
• ONBOARD DIAGNOSTIC SYSTEM – OBD II ........... 301
• Loose Fuel Filler Cap Message ................ 301
• REPLACEMENT PARTS ...................... 301
• MAINTENANCE PROCEDURES .................. 301
• Engine Oil – Gasoline Engines ................ 302
• Engine Oil – Diesel Engine .................. 303
• Synthetic Engine Oils ..................... 303
• Materials Added To Engine Oils ............... 304
• Disposing Of Used Engine Oil And Filters ......... 304
• Engine Oil Filter ......................... 304
• Engine Air Cleaner Filter .................... 304
• Maintenance-Free Battery ................... 304
• Air Conditioner Maintenance ................. 305
295

•Rear Fascia Mounted Fog Lamp ............... 325
• Center High-Mounted Stop Lamp (CHMSL) ......... 325
• Rear License Lamp ....................... 325
• FLUID CAPACITIES ......................... 326
• FLUIDS, LUBRICANTS, AND GENUINE PARTS ......... 327
• Engine .............................. 327
• Chassis .............................. 329
297

ENGINE COMPARTMENT — 3.6L
1 — Totally Integrated Power Module (Fuses)6 — Air Cleaner Filter
2 — Engine Oil Dipstick 7 — Washer Fluid Reservoir
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Power Steering Fluid Reservoir
298

ENGINE COMPARTMENT — 5.7L
1 — Totally Integrated Power Module (Fuses)6 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 7 — Engine Oil Dipstick
3 — Engine Oil Fill 8 — Coolant Pressure Cap (Radiator)
4 — Brake Fluid Reservoir 9 — Engine Coolant Reservoir
5 — Air Cleaner Filter
299

ENGINE COMPARTMENT – 3.0L DIESEL
1 — Engine Oil Dipstick5 — Washer Fluid Reservoir
2 — Engine Oil Fill 6 — Engine Coolant Reservoir
3 — Brake Fluid Reservoir 7 — Totally Integrated Power Module (Fuses)
4 — Engine Air Cleaner Filter
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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.
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
Petroleum Institute
(API). The manu-
facturer only rec-
ommends API
Certified engine
oils.
302

CAUTION!
Do not use chemical flushes in your engine oil
as the chemicals can damage your engine.
Such damage is not covered by the New
Vehicle Limited Warranty.
Engine Oil Selection – ACEA Categories
For countries that use the ACEA European Oil
Categories for Service Fill Oils, use engine oils
that meet the requirements of ACEA C3, and
that are approved to MB 229.31 or MB 229.51.
Engine Oil Viscosity – 3.6L Engine
SAE 5W-30 engine oil is recommended for all
operating temperatures. This engine oil im-
proves low temperature starting and vehicle
fuel economy.
The engine oil filler cap also shows the recom-
mended engine oil viscosity for your vehicle.
For information on engine oil filler cap location,
refer to “Engine Compartment” in “Maintaining
Your Vehicle” for further information. Engine Oil Viscosity – 5.7L Engine
SAE 5W-20 engine oil is recommended for all
operating temperatures. This engine oil im-
proves low temperature starting and vehicle
fuel economy.
The engine oil filler cap also shows the recom-
mended engine oil viscosity for your vehicle.
For information on engine oil filler cap location,
refer to “Engine Compartment” in “Maintaining
Your Vehicle” for further information.
NOTE:
SAE 5W-30 engine oil approved to MB
229.31 or MB 229.51 may be used when SAE
5W-20 engine oil is not available.
Engine Oil – Diesel Engine
Engine Oil Selection
For best performance and maximum protection
under all types of operating conditions, the
manufacturer recommends engine oils that
meet the requirements of Chrysler Material
Standard MS-11106, and that are approved to
Mercedes Benz MB 229.31 or MB 229.51 and
ACEA C3.Engine Oil Viscosity
CAUTION!
Your vehicle is equipped with an advanced
technology Diesel Engine and an emission
device designed to limit Diesel Particulate
Emissions from being released into the atmo-
sphere. The durability of your engine and life
expectancy of this diesel particulate filter
emission device is highly dependent on the
use of the correct engine oil.
SAE 5W-30 Synthetic Low Ash Engine Oil is
recommended for all operating temperatures.
This engine oil improves low temperature start-
ing and vehicle fuel economy.
The engine oil filler cap also shows the recom-
mended engine oil viscosity for your engine.
For information on engine oil filler cap location,
refer to “Engine Compartment” in “Maintaining
Your Vehicle” for further information.
Synthetic Engine OilsYou may use synthetic engine oils provided the
recommended oil quality requirements are met,
303