2004 Lexus SC 430 Owners Manual - Page 361

CHASSIS RUN-FLA T TIRES This vehicle can be equipped with either run-flat tires (RFT) or standard tires. You can continue driving on the vehicle with run-flat tires even if any tire goes flat. It is able to run for a maximum of 160 km (100 miles) at a speed below 90 km/h (55 mph) after the low tire pressure warning light blinks and chimes sound. When you drive your vehicle after the low tire pressure warning light blinks and chimes sound, the tire must be replaced. Do not use the repaired tire. A spare tire is not provided on the vehicle with run-flat tires. A spare tire is not provided on the vehicle equipped with run-flat tires. Confirm whether your vehicle is equipped with a spare tire or not. If you have a flat tire, you have to take a different action depending on whether the tires are standard tires or run-flat tires. Run-flat tires characteristics: The vehicle with run-flat tires allows you to continue driving for up to 160 km (100 miles) at the moderate speed and do not ever exceed 90 km/h (55 mph) even with a flat tire. After such usage, the tire must be replaced. If you are not sure, consult your Lexus dealer. If you have a flat tire, decrease the speed and drive at lower speed to reduce the extent to which the tire is damaged. However, in some conditions (such as at high temperatures), you could not continue driving for up to 160 km (100 miles). The use of non-genuine wheels may prohibit optimum performance. The run- flat tires equipped on this vehicle are ones dedicated for SC430. Do not use them on another model. Do not mix run-flat tires with standard tires. The tire warranty book covers the detailed information on run-flat tires. For details, see the tire warranty book. 341 31sa01b A "RFT" or "DSST" mark is molded on the sidewall of the run-flat tire. If you cannot distinguish between the standard tire and run-flat tire, consult Lexus dealer.