2008 Toyota Yaris Owners Manual - Page 192

2-5. Driving information NOTICE n Repairing or replacing snow tires Request repairs of and obtain replacement snow tires from Toyota dealers or legitimate tire retailers. This is because the removal and attachment of snow tires affects the operation of the tire pressure warning valves and transmitters. n Fitting tire chains The tire pressure warning valves and transmitters may not function correctly when tire chains are fitted. 154