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3. TIRE SAFETY INFORMATION
REPORTING SAFETY DEFECTS
This portion of the User’s Manual contains tire safety information as required by 49 CFR 575.6.
Section 3.1 contains “Trailer Tire Information”. Section 3.2 contains “Steps for Determining Correct
Load Limit - Trailer”. Section 3.3 contains “Steps for Determining Correct Load Limit – Tow
Vehicle”. Section 3.4
terms. Section 3.5 contains information from the NHTSA brochure entitled “Tire Safety – Everything
Rides On It”.
This brochure, as well as preceding subsections, describes the following items;
• Tire labeling, including a description and explanation of each marking on the tires,
• Vehicle Placard and location on the vehicle.
• Tire Care, including maintenance and safety practices.
• Vehicle load limits, including a description and explanation of the following items:
• Locating and understanding the load limit information, total load capacity,
and cargo capacity.
including quantitative examples showing / illustrating how the vehicles
cargo and luggage capacity decreases as combined number and size of
occupants’ increases. This item is also discussed in Section 3.
• Determining compatibility of tire and vehicle load capabilities.
• Adverse safety consequences of overloading on handling and stopping on
tires.
3 | Tire Safety Information
3.1 TRAILER TIRE INFORMATION
Trailer tires may be worn out even though they still have plenty of tread left. This is because trailer
tires have to carry a lot of weight all the time, even when not in use. It is actually better for the
tire to be rolling down the road than to be idle. During use, the tire releases lubricants that are
temperature as the surrounding air, such as when the vehicle has been parked overnight. Wheel
and tire manufacturers recommend adjusting the air pressure to the trailer manufacturer’s
of the trailer is exceeded, the load carrying capacity of the tire could be dramatically affected. If
tow vehicle/trailer combination could be affected. Refer to the owner’s manual or talk to your