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Average Fuel Economy (AVG ECO)
Shows the average fuel economy since the last reset. This
display mode becomes less sensitive to instantaneous
changes in fuel consumption as the number of total
vehicle miles since the last reset increases. It is suggested
that this mode be reset periodically for general operation
or when driving conditions change significantly (for
example, at the end of a trip or when a trailer is
connected or disconnected).
Distance To Empty (DTE)
Shows the estimated distance that can be travelled with
the fuel remaining in the tank. The estimated distance is
determined by a weighted average of the instantaneous
and average fuel economy, according to the current fuel
tank level.
When Distance To Empty = 0, the fuel gauge pointer will
initially be on the red “E” marker. At this point (fuel
gauge pointer on the the red “E” marker) there is reserve fuel capacity, which corresponds to approximately 8% of
tank volume. This reserve capacity was put in place to
prevent the likelihood of customers running out of fuel
when operating at maximum load conditions in areas
where there aren’t many gas stations.
NOTE:
The Distance To Empty will remain equal to
zero, until the vehicle runs out of fuel or is refueled.
Trip Odometer (ODO)
This display shows the distance traveled since the last
reset.
Elapsed Time (ET)
This display shows the accumulated ignition ON time
since the last reset.
128 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
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If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged,
GASCAP will be displayed in the instrument cluster.
Tighten the fuel filler cap properly and press the odom-
eter reset button to turn the GASCAP message off. If the
problem continues, the message will appear the next time
the vehicle is started.
17. Odometer
The odometer shows the total distance the vehicle has
been driven.
U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so that the correct mileage can
be determined. 18. Transmission Temperature Indicator
This light indicates that there is excessive trans-
mission fluid temperature that might occur
with severe usage such as trailer towing. If this
light comes on, stop the vehicle and run the
engine at idle or faster, with the transmission in NEU-
TRAL until the light goes off.
19. Does not Apply
This indicator is not available.
20. Door Ajar
The Door Ajar light will illuminate when the ignition is
ON and any one of the passenger doors are opened.
NOTE: A chime will sound if the vehicle is rolling and
a door has been opened.
21. BRAKE System Warning Light
This light will light when the ignition key is turned to the
ON position and will remain on for a few seconds. If the
156 INSTRUMENT PANEL AND CONTROLS
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ADDING FUEL
NOTE:If fuel is poured from a portable container, the
container should have a flexible nozzle long enough to
extend into the fuel filler tube.
CAUTION!
To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
NOTE: When the fuel nozzle “clicks” or shuts off, the
fuel tank is full.
NOTE: Tighten the gas cap until you hear a “clicking”
sound. This is an indication that the gas cap is properly
tightened. Make sure that the gas cap is tightened each
time the vehicle is refueled.
Fuel Cap Holder
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WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle or on a
truck bed. You could be burned. Always place gas
containers on the ground while filling.
Fuel Filler Cap (Gas Cap)
The gas cap is behind the fuel filler door. If the gas cap is
lost or damaged, be sure the replacement cap is for use
with this vehicle.
CAUTION!
Damage to the fuel system or emission control
system could result from using an improper fuel
tank filler tube cap (gas cap). A poorly fitting cap
could let impurities into the fuel system.
WARNING!
•Never allow any lit smoking materials near the
vehicles while removing the cap or filling the
tank.
•Never add fuel to the vehicle when the engine is
running.
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Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
Each axle GAWR is determined by the component in the
system with the lowest load carrying capacity (axle,
springs, tires, or wheels).
Heavier axles or suspension components sometimes
specified by purchasers for increased durability do not
necessarily increase the vehicle’s GVWR.
Tire Size
This is the minimum allowable tire size for your vehicle.
Replacement tires must be equal to the load capacity of
this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure (Cold)
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
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WARNING!
A fire may result if gasoline is pumped into a
portable container that is in a vehicle or on a truck
bed. You could be burned. Always place gas contain-
ers on the ground while filling.
WARNING!
Remove the gas cap slowly to prevent fuel spray
from the filler neck which may cause injury.
The volatility of present gasolines may cause a build
up of pressure in the fuel tank that may increase
while you drive. This pressure can result in a spray
of gasoline and/or vapors when you remove the cap
from a hot vehicle. Removing the cap slowly allows
the pressure to vent and prevents fuel spray.
Never allow any lit smoking materials near the
vehicle while removing the cap or filling the tank.
Never add fuel to the vehicle when the engine is
running.
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MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment 3.7L V6 ..............302
Engine Compartment 4.7L/4.7HO V-8 ........303
Onboard Diagnostic System — OBD II ........304
▫ Loose Fuel Filler Cap Message ............304
Emissions Inspection And Maintenance
Programs ............................305
Replacement Parts ......................306
Dealer Service .........................307
Maintenance Procedures ..................307 ▫
Engine Oil ..........................307
▫ Engine Oil Filter ......................311
▫ Drive Belts — Check Condition And
Tensioner ...........................312
▫ Spark Plugs .........................312
▫ Engine Air Cleaner Filter ................313
▫ Engine Fuel Filter .....................313
▫ Catalytic Converter ....................313
▫ Maintenance-Free Battery ................315
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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 emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
•Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is loose, improperly
installed, or damaged. A loose fuel filler cap message will
be displayed in the instrument cluster. Tighten the gas
304 MAINTAINING YOUR VEHICLE