Check the tire treads for tread wear indicators. If the indicators are visible, replace the tires.
The tires on your Toyota have built-in tread wear indicators to help you know when your tires need replacing. When the tread depth is worn to 1.6 mm or less, the indicators will be visible. If you find indicators in two or more adjacent grooves, the tire needs to be replaced. The lower the tread, the greater the risk of skidding.
The effectiveness of tires for driving on snow is lost if the tread wears below 4 mm.
Regularly check your tires for damage such as cuts, peeling, and cracks. If any damage is found, contact your service personnel and have the tire repaired or replaced.
Even if the damage does not look 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 more than six years old should be inspected by a qualified technician, even if no damage is visible.
Tires deteriorate over time, even if they have never been used or have been used rarely. This also applies to spare tires and tires stored for future use.
Tire replacement
When replacing a tire, use only the same size and construction as the originally installed tire and with the same or greater load rating.
Using any other size or type of tire may seriously affect handling, ride, speedometer/odometer readings, ground clearance, tire-to-body clearance, or the use of tire chains.
Caution: Do not mix radial, belted or bias ply tires. This may result in unsafe performance and possible loss of control.
Do not use used tires. Using tires whose previous 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.
The text is taken from the specified website [Toyotaman.ru]
If a tyre has been replaced, the wheels should always be balanced.
Unbalanced wheels can affect the handling of the vehicle and the life of the tires. Wheels can become unbalanced 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.