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Transport Canada - Road Safety
 
  Riding On Air
  TP 2823 E 
 
Table of contents
Critical safety and environmental information
When was the last time you checked your tires?
Inflating your tires
Inspecting tires for damage and wear
Rotating your tires
Replacing tires
Winter tires
How to read a tire sidewall
Recommended tire pressure
Tire pressure monitoring systems (TPMS)
Seasonal tire storage
The impact of tires on the environment and our health
Tire safety checklist
Tire safety and Transport Canada
Contacting Transport Canada
Vehicles, fuel efficiency and Natural Resources Canada

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Inspecting tires for damage and wear

Inspect your tires regularly for damage and for signs of excessive or uneven wear. Catching a problem early could save you money and prevent a sudden tire failure. Check for embedded stones, glass or other foreign objects that could work into the tread and cause a leak.

Wheel alignment and balancing

It’s a good idea to have your wheel alignment checked once a year or if you notice uneven or rapid wear on the inside or outside edges of the tire. If the wheels are misaligned, they may drag instead of rolling freely. This could increase fuel consumption, reduce tire life and cause problems with the vehicle’s handling and ride.

Wheels should also be balanced. If they are out of balance, you may feel a pounding or shaking through the steering wheel or your seat. This pounding could shorten the life of suspension components, lead to uneven tire wear (bald spots) and increase fuel consumption.

Tires with deep cuts, slits, cracks, blisters or bulges are potentially dangerous and should be replaced. Tires with treads worn down to the same level as the tread wear indicator (1.5 mm or 2/32 of an inch in depth) must be replaced.

Red box indicating tire wear
Uneven tread wear can be caused by improper wheel alignment or a tire imbalance.

Red box indicating tire wear
A tire must be replaced when the tread wears even with the tread wear indicator.

Red box indicating tire wear
Tires with cuts, cracks or bulges in the sidewall or tread should be replaced.


If you suspect any problem with your tires, have them inspected by an expert who can recommend the best corrective action.



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