2011 Lexus IS 350 Owners Manual - Page 454

5-2. Steps to take in an emergency n If the malfunction indicator lamp comes on while driving First check the following: l Is the fuel tank empty? If it is, fill the fuel tank immediately. l Is the fuel tank cap loose? If it is, tighten it securely. The lamp will go off after taking several driving trips. If the lamp does not go off even after several trips, contact your Lexus dealer as soon as possible. n Electric power steering warning light When the battery is low or when the voltage drops temporarily, the electric power steering warning light may come on. n Front passenger detection sensor and passenger seat belt reminder and warning buzzer l If luggage is placed on the front passenger seat, the front passenger detection sensor may cause the warning light to flash and the warning buzzer to sound, even if a passenger is not sitting in the seat. l If a cushion is placed on the seat, the sensor may not detect a passenger, and the warning light may not operate properly. n When the tire pressure warning light comes on 5 Check the tire inflation pressure and adjust to the appropriate level. Pressing the satellite switch does not turn off the tire pressure warning light. n The tire pressure warning light may turn on due to natural causes When trouble arises The tire pressure warning light may turn on due to natural causes such as natural air leaks or tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes). n When a tire is replaced with a spare tire The compact spare tire is not equipped with the tire pressure warning valve and transmitter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat tire is replaced with the spare tire. Replace the spare tire with the repaired tire and adjust the proper tire inflation pressure. The tire pressure warning light will turn off after a few minutes. 465