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Poorly maintained and improperly used tyres are dangerous and may cause an accident resulting in serious
injury or even death.
Tyres must not exceed their loading limits. Overloading of tyres can cause blowouts resulting in accidents
causing serious injury or even death. See ‘Tyre Placard Label’.
Tyres must be inflated to the correct pressures. Over or under inflated tyres can cause blowouts resulting in
accidents causing serious injury or even death. See ‘Tyre Placard Label’.
Tyres matching the correct manufacturers specification must be used. Using incorrect tyres can affect the
handling of the vehicle, which can cause an accident resulting in serious injury or even death.
12.3 Tyre Care
Wear indicators are moulded into the bottom of the tread grooves at intervals around the tyre, indicated by
small pointers on the outer tread blocks. The tyres should be replaced before being worn to this minimum legal
tread depth. The cold tyre pressures should be checked every week, or every 1,000 miles (1,700 km), whichever
is the sooner, and corrections made as necessary. See ‘Technical Data’ at the back of the handbook for tyre
pressures. It is important that the tyre pressures are adjusted only when the Tyres are cold (when the car has
been standing for a minimum of 3 hours, or driven less than 1 mile). Always replace the tyre valve dust cap to
prevent dirt and moisture getting into the valve, which could cause leakage.
12.4 Replacement Tyres and Tyre Quality Grading
The tyre quality grade can be found on the tyre sidewall, indicating the quality of performance of the tyre. For
example: -
TREADWEAR 280 TRACTION AA TEMPERATURE A
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