2008 Lexus GS 450h Owners Manual - Page 491

5-2. Steps to take in an emergency CAUTION n If the tire pressure warning light comes on Be sure to observe the following precautions. Failure to do so could cause loss of vehicle control and result in death or serious injury. l Vehicles with standard tires: • Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure immediately. • If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Check the tires. If the tire is flat, change to the spare tire and have the flat tire repaired by the nearest Lexus dealer. • Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes. l Vehicles with run-flat tires: • Decelerate to the lowest appropriate speed as soon as possible. Do not drive over 55 mph (90 km/h). • Check and adjust the tire inflation pressure immediately. • If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have the tire replaced by the nearest Lexus dealer. • Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes. n If a blowout or sudden air leakage should occur 5 When trouble arises The tire pressure warning system may not activate immediately. 497 GS_HV_U March 29, 2010 3:31 pm