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While operating on gasoline with an octane number of 87,
hearing a light knocking sound from the engine is not a
cause for concern. However, if the engine is heard making
a heavy knocking sound, see your dealer immediately. Use
of gasoline with an octane number lower than 87 can cause
engine failure and may void or not be covered by the New
Vehicle Limited Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience these
symptoms, try another brand of gasoline before consider-
ing service for the vehicle.
5.7L Engine
This engine is designed to meet all emis-
sions regulations and provide satisfac-
tory fuel economy and performance
when using high-quality unleaded gaso-
line having an octane range of 87 to 89 as
specified by the (R+M)/2 method. The
use of 89 octane “Plus” gasoline is rec-
ommended for optimum performance and fuel economy. While operating on gasoline with an octane number of 87,
hearing a light knocking sound from the engine is not a
cause for concern. However, if the engine is heard making
a heavy knocking sound, see your dealer immediately. Use
of gasoline with an octane number lower than 87 can cause
engine failure and may void or not be covered by the New
Vehicle Limited Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience these
symptoms, try another brand of gasoline before consider-
ing service for the vehicle.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline”.
Reformulated gasoline contains oxygenates and are specifi-
cally blended to reduce vehicle emissions and improve air
quality.
The use of reformulated gasoline is recommended. Prop-
erly blended reformulated gasoline will provide improved
performance and durability of engine and fuel system
components.
5
STARTING AND OPERATING 445
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Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gasoline 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
overheat. 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 assis-
tance.
• The use of fuel additives, which are now being sold
as octane enhancers, is not recommended. Most of
these products contain high concentrations of metha-
nol. Fuel system damage or vehicle performance
problems resulting from the use of such fuels or
additives is not the responsibility of the manufac-
turer and may void or not be covered under the New
Vehicle Limited Warranty. NOTE:
Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon mon-
oxide poisoning:
• Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as a
garage, and never sit in a parked vehicle with the
engine running for an extended period. If the vehicle
is stopped in an open area with the engine running
for more than a short period, adjust the ventilation
system to force fresh, outside air into the vehicle.
• Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal condi-
tions repaired promptly. Until repaired, drive with
all side windows fully open.
448 STARTING AND OPERATING
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CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (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 HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
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 cali-
brated torque wrench.
Torque Specifications
Lug Nut/Bolt Torque **Lug Nut/Bolt SizeLug Nut/Bolt
Socket Size
130 Ft-Lbs (176 N·m) M14 x 1.50 22 mm
**Use only your Authorized Dealer recommended lug
nuts/bolts and clean or remove any dirt or oil before
tightening. Inspect the wheel mounting surface prior to mounting the
tire and remove any corrosion or loose particles.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
After 25 miles (40 km) check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated against
the wheel.
Wheel Mounting Surface
6
WHAT TO DO IN EMERGENCIES 475
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WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts fully until the vehicle has been
lowered. Failure to follow this warning may result in
personal injury.
JACKING AND TIRE CHANGING
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift.
• Never start or run the engine while the vehicle is on
a jack.
• The jack is designed to be used as a tool for changing
tires only. The jack should not be used to lift the
vehicle for service purposes. The vehicle should be
jacked on a firm level surface only. Avoid ice or
slippery areas.
Torque Patterns
476 WHAT TO DO IN EMERGENCIES
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2. Turn on the Hazard Warning flasher.
3. Set the parking brake.
4. Place the gear selector into PARK.
5. Turn OFF the ignition.
6. Block both the front and rear of the wheel diagonallyopposite of the jacking position. For ex-
ample, if changing the right front tire, block
the left rear wheel.
NOTE: Passengers should not remain in the
vehicle when the vehicle is being jacked.
Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to help
prevent personal injury or damage to your vehicle:
• Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the
vehicle.
• Turn on the Hazard Warning flasher.
(Continued)
WARNING! (Continued)
•Block the wheel diagonally opposite the wheel to be
raised.
• Set the parking brake firmly and set the automatic
transmission in PARK.
• Never start or run the engine with the vehicle on a
jack.
• Do not let anyone sit in the vehicle when it is on a
jack.
• Do not get under the vehicle when it is on a jack. If
you need to get under a raised vehicle, take it to a
service center where it can be raised on a lift.
• Only use the jack in the positions indicated and for
lifting this vehicle during a tire change.
• If working on or near a roadway, be extremely
careful of motor traffic.
• To assure that spare tires, flat or inflated, are securely
stowed, spares must be stowed with the valve stem
facing the ground.
6
WHAT TO DO IN EMERGENCIES 481
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7. Install the spare wheel/tire on the vehicle and install thelug nuts with the cone-shaped end toward the wheel.
Lightly tighten the nuts.
CAUTION!
Be sure to mount the spare tire with the valve stem
facing outward. The vehicle could be damaged if the
spare tire is mounted incorrectly.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not fully tighten the lug nuts until the vehicle has been
lowered. Failure to follow this warning may result in
serious injury.
8. Lower the vehicle by turning the jack screw counter- clockwise, and remove the jack and wheel blocks.
9. Finish tightening the lug nuts. Push down on the wrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. Refer to Torque Specifica-
tions in this section for proper lug nut torque. If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Push out the small center cap using the jack tool from inside the aluminum road wheel and position the
wheel behind the rear bumper with the “beauty side”
facing rearward.
Mounting Spare Tire
484 WHAT TO DO IN EMERGENCIES
Page 498 of 584
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled
vehicle using a commercial towing service. If the transmis-
sion and drivetrain are operable, disabled vehicles may
also be towed as described under “Recreational Towing” in
the “Starting and Operating” section.
Towing Condition Wheels OFF theGroundRear-Wheel Drive
Models All-Wheel Drive
Models With
Single-Speed
Transfer Case All-Wheel Drive
Models WithTwo-Speed
Transfer Case
Flat Tow NONEIf Transmission Is
Operable:
•Transmission in
NEUTRAL
•
30 mph (48 km/h)
max speed
• 30 miles (48 km)
max distance
NOT ALLOWED See Instructions in
“Recreational
Towing” in “Starting And Operating”
•Transmission in
PARK
• Transfer case in
NEUTRAL (N)
• Tow in forward
direction
496 WHAT TO DO IN EMERGENCIES
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MAINTAINING YOUR VEHICLE
CONTENTS
ENGINE COMPARTMENT — 3.6L ...........503
ENGINE COMPARTMENT — 5.7L ...........504
ONBOARD DIAGNOSTIC SYSTEM (OBD II) . . . .505
▫ Onboard Diagnostic System (OBD II)
Cybersecurity ........................ .505
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS .......................... .506
REPLACEMENT PARTS ...................507
DEALER SERVICE ...................... .507
MAINTENANCE PROCEDURES .............508
▫ Engine Oil .......................... .508
▫ Engine Oil Filter .......................511
▫ Engine Air Cleaner Filter .................511
▫ Maintenance-Free Battery .................511
▫ Air Conditioner Maintenance ..............512▫
Body Lubrication ..................... .516
▫ Windshield Wiper Blades .................517
▫ Adding Washer Fluid ...................518
▫ Exhaust System ....................... .519
▫ Cooling System ....................... .520
▫ Brake System ........................ .525
▫ Front/Rear Axle Fluid ...................526
▫ Transfer Case ........................ .527
▫ Automatic Transmission ..................527
▫ Appearance Care And Protection
From Corrosion ....................... .528
FUSES ............................... .533
▫ Power Distribution Center ................534
VEHICLE STORAGE .....................540
7