tow MAZDA MODEL B-SERIES 2005 (in English) Owner's Manual

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 where the GCW of the towing
vehicle plus the trailer exceed the GVWR of the towing vehicle.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 (150 lbs [68 kg]).Consult your dealership (or
theRV and Trailer Towing Guideprovided 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 5,000 lb. (2,268 kg) conventional trailer, multiply 5,000
by 0.10 and 0.15 to obtain a proper tongue load range of 500 to 750 lb.
(227 to 340 kg). For an 11,500 lb. (5,216 kg) fifth wheel trailer, multiply
by 0.15 and 0.25 to obtain a proper king pin load range of 1,725 to 2,875
lb. (782 to 1,304 kg)
WARNING: Do not exceed the GVWR or the GAWR specified on
the certification label.
WARNING: Do not use replacement tires with lower load
carrying capacities than the originals because they may lower
the vehicle’s GVWR and GAWR limitations. Replacement tires
with a higher limit than the originals do not increase the GVWR
and GAWR limitations.
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WARNING: Exceeding any vehicle weight rating limitation
could result in serious damage to the vehicle and/or personal
injury.
Steps for determining the correct load limit:
1. Locate the statement “The combined weight of occupants and cargo
should never exceed XXX pounds” on your vehicle’s placard.
2. Determine the combined weight of the driver and passengers that
will be riding in your vehicle.
3. Subtract the combined weight of the driver and passengers from
XXX kilograms or XXX pounds.
4. The resulting figure equals the available amount of cargo and
luggage load capacity. For example, if the “XXX” amount equals
1,400 lb. and there will be five 150 lb. passengers in your vehicle, the
amount of available cargo and luggage load capacity is 650 lb.
(1400–750 (5 x 150) = 650 lb.).
5. Determine the combined weight of luggage and cargo being loaded
on the vehicle. That weight may not safely exceed the available
cargo and luggage load capacity calculated in Step 4.
6. If your vehicle will be towing a trailer, load from your trailer will be
transferred to your vehicle. Consult this manual to determine how
this reduces the available cargo and luggage load capacity of your
vehicle.
Special loading instructions for owners of pickup trucks and
utility-type vehicles
WARNING: For important information regarding safe operation
of this type of vehicle, see the Preparing to drive your vehicle
section in this chapter.
WARNING: Loaded vehicles may handle differently than
unloaded vehicles. Extra precautions, such as slower speeds and
increased stopping distance, should be taken when driving a
heavily loaded vehicle.
Your vehicle can haul more cargo and people than most passenger cars.
Depending upon the type and placement of the load, hauling cargo and
people may raise the center of gravity of the vehicle.
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TRAILER TOWING
Your vehicle may tow a class I, II or III trailer provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
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
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
Regular Cab
2.3L All 4,800 (2,177) 1,600 (726) Equal to
frontal area
of vehicle
3.0L* 3.73 6,000 (2,722) 2,680 (1,216) 50 (4.64)
3.0L*
Dual
Sport4.10 6,000 (2,722) 2,540 (1,152) 50 (4.64)
Cab Plus/Cab Plus 4
2.3L All 4,800 (2,177) 1,440 (653) Equal to
frontal area
of vehicle
3.0L* 3.73 6,000 (2,722) 2,480 (1,125) 50 (4.64)
3.0L*
Dual
Sport4.10 6,000 (2,722) 2,380 (1,080) 50 (4.64)
4.0L All 7,000 (3,175) 3,420 (1,551) 50 (4.64)
4.0L Dual
SportAll 7,000 (3,175) 3,300 (1,497) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft. (300
meters) elevation.
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4x2 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
For definition of terms used in this table seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the load your vehicle can carry/towearlier
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).
4x4 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
Regular Cab
3.0L* All 6,000 (2,722) 2,360 (1,070) 50 (4.64)
4.0L All 7,000 (3,175) 3,300(1,497) 50 (4.64)
Cab Plus/Cab Plus 4
4.0L All 7,000 (3,175) 3,120 (1,415) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft. (300
meters) of elevation.
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
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4x4 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
For definition of terms used in this table, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier 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).
4x2 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
Regular Cab
2.3L All 5,500 (2,495) 2,260 (1,025) Equal to
frontal area
of vehicle
3.0L* 3.73 6,000 (2,722) 2,640 (1,197) 50 (4.64)
3.0L*
Dual
Sport4.10 6,000 (2,722) 2,480 (1,125) 50 (4.64)
Cab Plus/Cab Plus 4
3.0L* 3.73 6,000 (2,722) 2,440 (1,107) 50 (4.64)
3.0L*
Dual
Sport4.10 6,000 (2,722) 2,340 (1,061) 50 (4.64)
4.0L All 9,500 (4,309) 5,860 (2,658) 50 (4.64)
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4x2 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
4.0L Dual
SportAll 9,500 (4,309) 5,780 (2,622) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft. (300
meters) elevation.
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
For definition of terms used in this table seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the load your vehicle can carry/towearlier
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).
4x4 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
Regular Cab
3.0L* 3.73 6,000 (2,722) 2,340 (1,061) 50 (4.64)
4.0L All 9,500 (4,309) 5,760 (2,613) 50 (4.64)
Cab Plus/Cab Plus 4
4.0L All 9,500 (4,309) 5,580 (2,531) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft. (300
meters) of elevation.
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4x4 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer
weight - lbs.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
For definition of terms used in this table, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier 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).
WARNING: Do not exceed the GVWR or the GAWR specified on
the certification label.
The certification label is found on the driver’s door latch pillar.
WARNING: 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.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
For towing trailers up to 2,000 lbs (907 kg), use a weight carrying hitch
and ball which uniformly distributes the trailer tongue loads through the
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underbody structure. Use a frame-mounted weight distributing hitch for
trailers over 2,000 lbs (907 kg).
Do not install a single or multi-clamp type bumper hitch, or a hitch
which attaches to the axle. Underbody mounted hitches are acceptable if
they are installed properly. Follow the towing instructions of a reputable
rental agency.
Whenever a trailer hitch and hardware are removed, make sure all
mounting holes in the underbody are properly sealed to prevent noxious
gases or water from entering.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if installed properly and adjusted to the manufacturer’s
specifications. The trailer brakes must meet local and Federal
regulations.
WARNING: Do not connect a trailer’s hydraulic brake system
directly to your vehicle’s brake system. Your vehicle may not
have enough braking power and your chances of having a
collision greatly increase.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure all running
lights, brake lights, turn signals and hazard lights are working. See your
dealer or trailer rental agency for proper instructions and equipment for
hooking up trailer lamps.
Using a step bumper
The optional step bumper is equipped with an integral hitch and requires
only a ball with a 3/4 inch (19 mm) shank diameter. The bumper has a
2,000 lb. (907 kg) trailer weight and 200 lb. (91 kg) tongue weight
capability.
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The rated capacities (as shown in this guide) for trailer towing with the
factory bumper are only valid when the trailer hitch ball is installed
directly into the ball hole in the bumper. Addition of bracketry to either
lower the ball hitch position or extend the ball hitch rearward will
significantly increase the loads on the bumper and its attachments. This
can result in the failure of the bumper or the bumper attachments. Use
of any type of hitch extensions should be considered abuse.
Trailer tow connector
The trailer tow connector is located
under the rear bumper, on the
driver’s side of the vehicle.
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-hand
turn signalCircuit activated when brake
pedal is depressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn
signalCircuit 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.
1
2
34
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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 transmissionsection in the
Driving 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 gaugein theInstrument Cluster
chapter.
•Anticipate stops and brake gradually.
•Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to yourService Maintenance Section
for more information.
Trailer towing tips
•Practice turning, stopping and backing up before starting on a trip to
get the feel of the vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
•Allow more distance for stopping with a trailer attached.
•The trailer tongue weight should be 10–15% of the loaded trailer
weight.
•After you have traveled 50 miles (80 km), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
•To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park)
(automatic transmission) or N (Neutral) (manual transmissions).
•Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer’s wheels.
Launching or retrieving a boat
Disconnect the wiring to the trailer before backing the trailer
into the water. Reconnect the wiring to the trailer after the
trailer is removed from the water.
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