Page 473 of 614

MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT)
is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. MMT is prohibited in Federal
and California reformulated gasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normalconditions and they would result in additional cost.
Therefore, you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•
The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine perfor-
mance and damage the emissions control system.
•
An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic converter to over-
heat. If you notice a pungent burning odor or some
light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your authorized dealer for service assistance.
(Continued)
5
STARTING AND OPERATING 471
Page 475 of 614
WARNING!(Continued)
•Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal
conditions repaired promptly. Until repaired, drive
with all side windows fully open.
ADDING FUEL
1. Press the fuel filler door release switch (located in the driver’s door map pocket).
2. Open the fuel filler door.
Fuel Filler Door Release Switch
5
STARTING AND OPERATING 473
Page 484 of 614

HAZARD WARNING FLASHERS
The Hazard Warning flasher switch is located in the
switch bank near the top center of the instrument panel.Press the switch to turn on the Hazard Warning
flasher. When the switch is activated, all direc-
tional turn signals will flash on and off to warn oncoming
traffic of an emergency. Press the switch a second time to
turn off the Hazard Warning flashers.
This is an emergency warning system and it should not
be used when the vehicle is in motion. Use it when your
vehicle is disabled and it is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flashers will continue to operate even
though the ignition is placed in the OFF position. NOTE:
With extended use the Hazard Warning flashers
may wear down your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
• On the highways — slow down.
• In city traffic — while stopped, place the transmission
in NEUTRAL, but do not increase the engine idle
speed.
NOTE: There are steps that you can take to slow down
an impending overheat condition:
• If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
482 WHAT TO DO IN EMERGENCIES
Page 485 of 614

•You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control
to high. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the engine cooling system.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads “H,”
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the “H,” turn the engine off immediately and call for
service.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure
that the wheel is properly mounted to the vehicle. Any
time a wheel has been removed and reinstalled on the
vehicle the lug nuts/bolts should be torqued using a
properly calibrated torque wrench.
6
WHAT TO DO IN EMERGENCIES 483
Page 491 of 614

WARNING!
•Do not attempt to seal a tire on the side of the
vehicle closest to traffic. Pull far enough off the
road to avoid the danger of being hit when using
the TIREFIT kit.
• Do not use TIREFIT or drive the vehicle under the
following circumstances:
– If the puncture in the tire tread is approximately 1/4” (6 mm) or larger.
– If the tire has any sidewall damage.
– If the tire has any damage from driving with extremely low tire pressure.
– If the tire has any damage from driving on a flat tire.
– If the wheel has any damage.
– If you are unsure of the condition of the tire or the wheel.
(Continued)
WARNING! (Continued)
•Keep TIREFIT away from open flames or heat
source.
• A loose TIREFIT kit thrown forward in a collision
or hard stop could endanger the occupants of the
vehicle. Always stow the TIREFIT kit in the place
provided. Failure to follow these warnings can
result in injuries that are serious or fatal to you,
your passengers, and others around you.
• Take care not to allow the contents of TIREFIT to
come in contact with hair, eyes, or clothing. TIRE-
FIT is harmful if inhaled, swallowed, or absorbed
through the skin. It causes skin, eye, and respira-
tory irritation. Flush immediately with plenty of
water if there is any contact with eyes or skin.
Change clothing as soon as possible, if there is any
contact with clothing.
(Continued)
6
WHAT TO DO IN EMERGENCIES 489
Page 507 of 614
MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 6.4L (392 HEMI) . . .507
ONBOARD DIAGNOSTIC SYSTEM — OBD II . .508
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................... .508
REPLACEMENT PARTS ..................510
DEALER SERVICE ..................... .510
MAINTENANCE PROCEDURES ...........511
▫ Engine Oil ......................... .512
▫ Engine Oil Filter ..................... .513
▫ Engine Air Cleaner Filter ................514 ▫
Maintenance-Free Battery ...............514
▫ Air Conditioner Maintenance .............516
▫ A/C Air Filter ...................... .517
▫ Body Lubrication .....................519
▫ Windshield Wiper Blades ...............520
▫ Adding Washer Fluid ..................520
▫ Exhaust System ..................... .521
▫ Cooling System ..................... .523
▫ Brake System ....................... .529
▫ Automatic Transmission ................531
7
Page 513 of 614

WARNING!(Continued)
service job, take your vehicle to a competent me-
chanic.
MAINTENANCE PROCEDURES
The pages that follow contain the requiredmaintenance
services determined by the engineers 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.
CAUTION!
• Failure to properly maintain your vehicle or per-
form repairs and service when necessary could
result in more costly repairs, damage to other
(Continued)
CAUTION! (Continued)
components or negatively impact vehicle perfor-
mance. Immediately have potential malfunctions
examined by an authorized dealer 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 inter-
vals. Do not use chemical flushes in these compo-
nents as the chemicals can damage your engine,
transmission, power steering or air conditioning.
Such damage is not covered by the New Vehicle
Limited Warranty. If a flush is needed because of
component malfunction, use only the specified
fluid for the flushing procedure.
7
MAINTAINING YOUR VEHICLE 511
Page 518 of 614

CAUTION!
•It is essential when replacing the cables on the
battery that the positive cable is attached to the
positive post and the negative cable is attached to
the negative post. Battery posts are marked positive
(+) and negative (-) and are identified on the
battery case. Cable clamps should be tight on the
terminal posts and free of corrosion.
• If a “fast charger” is used while the battery is in the
vehicle, disconnect both vehicle battery cables be-
fore connecting the charger to the battery. Do not
use a “fast charger” to provide starting voltage.
Air Conditioner Maintenance
For best possible performance, your air conditioner should
be checked and serviced by an authorized dealer at the
start of each warm season. This service should include cleaning of the condenser fins and a performance test.
Drive belt tension should also be checked at this time.
WARNING!
•
Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause the
system to fail, requiring costly repairs. Refer to
Warranty Information Book, located on the DVD,
for further warranty information.
• The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced technician.
516 MAINTAINING YOUR VEHICLE