Check tire treads for their tread wear indicators. If indicators are visible, replace tires.
Tires on a Toyota vehicle have built-in tread wear indicators to help you know when a tire needs to be replaced. If the tread depth wears to 1.6mm or less, indicators will be visible. If indicators are found in two or more adjacent grooves, the tire must be replaced. The lower the tread, the greater the risk of skidding.
The performance of tires for driving on snow is lost if the tread wears below 4 mm.
Check tires regularly for damage such as cuts, chips and cracks. If any damage is found, contact technical personnel and have the tire repaired or replaced.
Even if the damage does not appear serious, it should be checked by a qualified technician. Items that have penetrated the inside of the tire can cause internal damage.
Any tires that are over six years old should be checked by a qualified technician, even if no damage is visible.
Tires degrade over time, even if they have never been used or used rarely. This also applies to spare tires and tires stored for future use.
Tire change
When replacing a tire, use only the same size and design as the original tire and with the same or greater load capacity.
Use of any other tire size or type may seriously affect handling, ride, speedometer/odometer readings, ground clearance and tire-to-body clearance, or use of snow chains.
Attention! Do not mix radial, belted or diagonal tires. This can lead to hazardous performance and result in loss of control.
Do not use used tires. The use of tires whose preliminary fate is unknown is dangerous.
It is recommended that all four tires - or at least both front and rear - be replaced at the same time as a set.
If a tire has been replaced, the wheels must always be balanced.
Unbalanced wheels can affect vehicle handling and tire life. Wheels can become out of balance with constant use and therefore need to be balanced from time to time.
When replacing tubeless tires, the air valve must also be replaced with a new one.