2012 Lexus IS 350 User Guide - Page 487

5-2. Steps to take in an emergency Warning light Warning light/Details Tire pressure warning light Correction procedure When the light comes on: Low tire inflation pressure such as • Natural causes (→P. 500) • Flat tire (→P. 518, 527) Adjust the tire inflation pressure to the specified level. The light will turn off after a few minutes. In case the light does not turn off even if the tire inflation pressure is adjusted, have the system checked by your Lexus dealer. When the light comes on after blinking for 1 minute: Have the system checked by Malfunction in the tire presyour Lexus dealer. sure warning system (→P. 500) Master warning light A buzzer sounds and the warning light comes on and flashes to indicate that the master warning system has detected a malfunction. →P. 504 *1:Open door warning buzzer →P. 507 * 2:Driver's and front passenger's seat belt reminders buzzer The driver's and front passenger's seat belts reminder sounds to alert the driver and front passenger that his or her seat belt is not fastened. The buzzer sounds intermittently for 10 seconds after the vehicle has reached a speed of at least 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for 20 more seconds. 498