2010 Toyota Highlander Owners Manual - Page 1141

5-2. Steps to take in an emergency Warning light Warning light/Details Low washer fluid warning light (vehicles without multi-information display) Low level of washer fluid Engine oil replacement reminder light (vehicles without multi-information display) Illuminates for about 3 seconds and then flashes for about 12 seconds: Indicates that the engine oil is scheduled to be changed. Comes on and remains: Indicates that the engine oil should be changed. Correction procedure Fill the tank. (U.S.A.) Check and change the engine oil if necessary. Check and change the engine oil. Tire pressure warning light When the light comes on: Low tire inflation pressure When the light comes on after blinking for 1 minute: Malfunction in the tire pressure warning system Master warning light (vehicles with multi-information display) A buzzer sounds and the warning light comes on and flashes to indicate that the master warning system has detected a malfunction. Adjust the tire inflation pressure. Have the system checked by your Toyota dealer. →P. 525 518