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256 STARTING AND OPERATING
NOTE:
When the fuel nozzle “clicks” or shuts off, the
fuel tank is full.
Tighten the fuel filler cap about 1/4 turn until
you hear one click. This is an indication that
the cap is properly tightened.
If the fuel filler cap is not tightened properly,
the MIL will come on. Be sure the cap is tight-
ened every time the vehicle is refueled.
Loose Fuel Filler Cap Message
After fuel has been added, the vehicle diag-
nostic system can determine if the fuel filler cap
is possibly loose, improperly installed, or
damaged. If the system detects a malfunction,
the “gASCAP” message will display in the odom-
eter display. Tighten the gas cap until a
"clicking" sound is heard. This is an indication
that the gas cap is properly tightened. Push the
odometer reset button to turn the message off.
If the problem persists, the message will appear
the next time the vehicle is started. This might
indicate a damaged cap. If the problem is
detected twice in a row, the system will turn on
the MIL. Resolving the problem will turn the MIL
off.
VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety
Administration regulations, your vehicle has a
certification label affixed to the driver's side
door or pillar.
This label contains the month and year of manu-
facture, Gross Vehicle Weight Rating (GVWR),
Gross Axle Weight Rating (GAWR) front and rear,
and Vehicle Identification Number (VIN). A
Month-Day-Hour (MDH) number is included on
this label and indicates the Month, Day and
Hour of manufacture. The bar code that
appears on the bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your
vehicle including driver, passengers, vehicle,
options and cargo. The label also specifies
maximum capacities of front and rear axle
systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not
exceeded.
Payload
The payload of a vehicle is defined as the allow-
able load weight a truck can carry, including the
weight of the driver, all passengers, options and
cargo.
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 compo-
nents in the system with the lowest load
carrying capacity (axle, springs, tires or wheels).
Heavier axles or suspension components some-
times specified by purchasers for increased
durability does not necessarily increase the
vehicle's GVWR.
CAUTION!
Damage to the fuel system or emission
control system could result from using an
improper fuel filler cap. A poorly fitting cap
could let impurities into the fuel system.
Also, a poorly fitting aftermarket cap can
cause the “Malfunction Indicator Light
(MIL)” to illuminate, due to fuel vapors
escaping from the system.
To avoid fuel spillage and overfilling, do not
“top off” the fuel tank after filling.
20_JL_OM_EN_USC_t.book Page 256
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