DRIVING THROUGH WATER
If driving through deep or standing water is unavoidable, proceed very
slowly especially if the depth is not known. Never drive through water
that is higher than the bottom of the hubs (for trucks) or the bottom of
the wheel rims (for cars). Traction or brake capability may be limited
and your vehicle may stall. Water may also enter your engine’s air intake
and severely damage your engine.
Once through the water, always dry the brakes by moving your vehicle
slowly while applying light pressure on the brake pedal. Wet brakes do
not stop the vehicle as quickly as dry brakes. Driving through deep
water where the transmission vent tube or transfer case vent
tube (4x4 vehicles only) are submerged may allow water into the
transmission or transfer case and cause internal
transmission/transfer case damage.
VEHICLE LOADING –WITH AND WITHOUT A TRAILER
This section will guide you in the proper loading of your vehicle and/or
trailer, to keep your loaded vehicle weight within its design rating
capability, with or without a trailer. Properly loading your vehicle will
provide maximum return of vehicle design performance. Before loading
your vehicle, familiarize yourself with the following terms for determining
your vehicle ’s weight ratings, with or without a trailer, from the vehicle ’s
Safety Certification Label and Tire and Load Information Label:
Base Curb Weight –is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
Vehicle Curb Weight –is the weight of your new vehicle when you
picked it up from your dealer plus any aftermarket equipment.
Cargo Weight –includes all weight added to the Base Curb Weight,
including cargo and optional equipment. When towing, trailer tongue load
or king pin weight is also part of cargo weight.
GAW (Gross Axle Weight) –is the total weight placed on each axle
(front and rear) –including vehicle curb weight and all payload.
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GAWR (Gross Axle Weight Rating)–is the maximum allowable
weight that can be carried by a single axle (front or rear). These
numbers are shown on the Safety Compliance Certification Label
located on the driver ’s door or door pillar. The total load on each
axle must never exceed its GAWR.
Exceeding the Safety Certification Label axle weight rating limits
could result in substandard vehicle handling, performance,
engine, transmission and/or structural damage, serious damage to the
vehicle, loss of control and personal injury.
Note: For trailer towing information refer to Trailer Towingfound in
this chapter or the RV and Trailer Towing Guide provided by your
dealership.
GVW (Gross Vehicle Weight) –is the Vehicle Curb Weight + cargo +
passengers.
GVWR (Gross Vehicle Weight
Rating) –is the maximum
allowable weight of the fully loaded
vehicle (including all options,
equipment, passengers and cargo).
The GVWR is shown on the
Safety Compliance Certification
Label located on the driver ’s
door or door pillar. The GVW
must never exceed the GVWR.
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Exceeding the Safety Certification Label axle weight rating limits
could result in substandard vehicle handling, performance,
engine, transmission and/or structural damage, serious damage to the
vehicle, loss of control and personal injury.
GCW (Gross Combined Weight) –is the weight of the loaded vehicle
(GVW) plus the weight of the fully loaded trailer.
GCWR (Gross Combined Weight Rating) –is the maximum allowable
weight of the vehicle and the loaded trailer –including all cargo and
passengers –that the vehicle can handle without risking damage.
(Important: The towing vehicle ’s braking system is rated for operation at
GVWR, not at GCWR. Separate functional brakes should be used for safe
control of towed vehicles and for trailers weighing more than 680 kg
[1,500 lbs]). The GCW must never exceed the GCWR.
Maximum Loaded Trailer Weight –is the highest possible weight of a
fully loaded trailer the vehicle can tow. It assumes a vehicle with only
mandatory options, no cargo (internal or external), a tongue load of
10 –15% (conventional trailer) or king pin weight of 15 –25% (fifth wheel
trailer), and driver only (68 kg [150 lbs]). Consult your dealership (or
the RV and Trailer Towing Guide provided by your dealership) for
more detailed information.
Tongue Load or Fifth Wheel King Pin Weight –refers to the amount
of the weight that a trailer pushes down on a trailer hitch.
Examples: For a 2268 kg (5000 lbs.) conventional trailer, multiply 5000
by 0.10 and 0.15 to obtain a proper tongue load range of 227 to 340 kg
(500 to 750 lbs.). For an 5216 kg (11,500 lbs.) fifth wheel trailer,
multiply by 0.15 and 0.25 to obtain a proper king pin load range of 782
to 1304 kg (1,725 to 2,875 lbs.)
Do not exceed the GVWR or the GAWR specified on the
certification label.
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Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
4x2 w/manual transmission
Engine Rear axle ratio Maximum
GCWR - kg (lbs.) Maximum
trailer weight - kg (lbs.) Maximum
frontal area of trailer - m
2(ft2)
Regular Cab w/6 ’box
2.3L All 2177 (4800) 717 (1580) Equal to frontal areaof vehicle
3.0L All 2722 (6000) 1207 (2660) 4.64 (50)
3.0L Edge All 2722 (6000) 1143 (2520) 4.64 (50) Regular Cab w/7’box
2.3L All 2177 (4800) 689 (1520) Equal to frontal areaof vehicle
3.0L All 2722 (6000) 1170 (2580) 4.64 (50) SuperCab
2.3L All 2177 (4800) 644 (1420) Equal to frontal areaof vehicle
3.0L All 2722 (6000) 1125 (2480) 4.64 (50)
3.0L Edge All 2722 (6000) 1061 (2400) 4.64 (50) 4.0L All 3175 (7000) 1542 (3400) 4.64 (50)
4.0L Edge All 3175 (7000) 1506 (3320) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000 ft.)
elevation.
For definition of terms used in this table see Vehicle Loadingearlier in
this chapter.
To determine maximum trailer weight designed for your particular vehicle,
see Calculating the load your vehicle can carry/tow earlier in this
chapter.
Maximum trailer weight is shown. The combined weight of the completed
towing vehicle (including hitch, passengers and cargo) and the loaded
trailer must not exceed the Gross Combined Weight Rating (GCWR).
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4x4 w/manual transmission
Engine Rear axle ratioMaximum
GCWR - kg (lbs.) Maximum
trailer
weight - kg (lbs) Maximum
frontal area of trailer - m
2(ft2)
Regular Cab w/6 ’box
3.0L All 2722 (6000) 1061 (2340) 4.64 (50)
4.0L All 3175 (7000) 1479 (3260) 4.64 (50) Regular Cab w/7’box
3.0L All 2722 (6000) 1034 (2280) 4.64 (50)
4.0L All 3175 (7000) 1451 (3200) 4.64 (50) SuperCab
4.0L
(without FX4
package) All 3175 (7000) 1406 (3100) 4.64 (50)
4.0L (with FX4
package) All 3175 (7000) 1243 (2740) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000 ft.)
of elevation.
For definition of terms used in this table, see Vehicle loadingearlier in
this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/tow earlier in this chapter.
Maximum trailer weight is shown. The combined weight of the completed
towing vehicle (including hitch, passengers and cargo) and the loaded
trailer must not exceed the Gross Combined Weight Rating (GCWR).
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4x2 w/automatic transmission
Engine Rear axle ratio Maximum
GCWR - kg (lbs.) Maximum
trailer weight - kg (lbs.) Maximum
frontal area of trailer - m
2(ft2)
Regular Cab w/6 ’box
2.3L All 2495 (5500) 1016 (2240) Equal to frontal areaof vehicle
3.0L All 2722 (6000) 1860 (2620) 4.64 (50)
3.0L Edge All 2722 (6000) 1125 (2480) 4.64 (50) Regular Cab w/7’box
2.3L All 2495 (5500) 989 (2180) Equal to frontal areaof vehicle
3.0L All 2722 (6000) 1152 (2540) 4.64 (50)
4.0L All 4309 (9500) 2712 (5980) 4.64 (50) SuperCab
3.0L All 2722 (6000) 1107 (2440) 4.64 (50)
3.0L Edge All 2722 (6000) 1070 (2360) 4.64 (50) 4.0L All 4309 (9500) 2658 (5860) 4.64 (50)
4.0L Edge All 4309 (9500) 2603 (5740) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000 ft.)
elevation.
For definition of terms used in this table see Vehicle Loadingearlier in
this chapter.
To determine maximum trailer weight designed for your particular vehicle,
see Calculating the load your vehicle can carry/tow earlier in this
chapter.
Maximum trailer weight is shown. The combined weight of the completed
towing vehicle (including hitch, passengers and cargo) and the loaded
trailer must not exceed the Gross Combined Weight Rating (GCWR).
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4x4 w/automatic transmission
Engine Rear axle ratioMaximum
GCWR - kg (lbs.) Maximum
trailer
weight - kg (lbs.) Maximum
frontal area of trailer - m
2(ft2)
Regular Cab w/6 ’box
3.0L All 2722 (6000) 1043 (2300) 4.64 (50)
4.0L All 4309 (9500) 2595 (5720) 4.64 (50) Regular Cab w/7’box
3.0L All 2722 (6000) 1016 (2240) 4.64 (50)
4.0L All 4309 (9500) 2567 (5660) 4.64 (50) SuperCab
4.0L
(without FX4
package) All 4309 (9500) 2522 (5560) 4.64 (50)
4.0L (with FX4
package) All 4309 (9500) 2359 (5200) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000 ft.)
of elevation.
For definition of terms used in this table, see Vehicle loadingearlier in
this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/tow earlier in this chapter.
Maximum trailer weight is shown. The combined weight of the completed
towing vehicle (including hitch, passengers and cargo) and the loaded
trailer must not exceed the Gross Combined Weight Rating (GCWR).
Do not exceed the GVWR or the GAWR specified on the
certification label.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of vehicle
control, vehicle rollover and personal injury.
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Refer to the following chart for information regarding the
factory-equipped trailer tow connector:
Trailer tow connector
Color Function Comment
1. Dark Green Trailer right-handturn signal Circuit activated when brake
pedal is depressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn signal Circuit activated when brake
pedal is depressed or when
ignition is on and left-hand
turn signal is applied.
3. Tan/White Tail lamp Relay controlled circuit activated when the park
lamps/headlamps are on.
4. White Ground Matching vehicle circuit returns to battery’s negative
ground.
Driving while you tow
When towing a trailer:
• Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
• Consult your local motor vehicle speed regulations for towing a trailer.
• To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Driving with a 5–speed automatic transmission section in this
chapter.)
• Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gauge in theInstrument cluster
chapter.
• Anticipate stops and brake gradually.
• Do not exceed the GCWR rating or transmission damage may occur.
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