Toyota 2009 Tundra Owner's Manual page 296

2-5. Driving information
CAUTION
n To avoid accident or injury
Speed limit for towing a trailer vary by state or province. Do not exceed the
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posted towing speed limit.
Do not exceed the trailer hitch assembly weight, gross vehicle weight,
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gross axle weight and trailer tongue load capacities.
Do not use cruise control when you are towing.
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l Slow down and downshift before descending steep or long downhill
grades. Do not make sudden downshifts.
Avoid holding the brake pedal down too long or applying the brakes too
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frequently. This could cause the brakes to overheat and result in reduced
braking efficiency.
Do not tow the vehicle with the temporary spare tire installed.
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Hitch
n
Trailer hitch assemblies have different weight capacities established by the
hitch manufacturer. Even though the vehicle may be physically capable of
towing a higher weight, the operator must determine the maximum weight
rating of the particular hitch assembly and never exceed the maximum
weight rating specified for the trailer-hitch. Exceeding the maximum weight
rating set by the trailer-hitch manufacturer can cause an accident resulting in
death or serious personal injuries.
When towing a trailer
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If the gross trailer weight exceeds 1000 lb. (453 kg), trailer brakes are
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required. Toyota recommends trailers with brakes that conform to all appli-
cable federal and state/provincial regulations.
Never tap into your vehicle's hydraulic system, as this will lower the vehi-
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cle's braking effectiveness.
Never tow a trailer without using a safety chain securely attached to both
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the trailer and the vehicle. If damage occurs to the coupling unit or hitch
ball, there is danger of the trailer wandering into another lane.
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