2007 Toyota Prius Triangle Warning Light. It has always done this before it needed service. I filled the tires up when it came on, but now the warning light won't go off.
Engine Light ON (or Service Engine Soon Warning Light).
If the front passenger's seat is occupied, the front passenger's seat belt also needs to be fastened to make the warning light (warning buzzer) turn off.
The preferred method to tow a Toyota Prius is to use a wheel lift or flat bed tow truck. the warning triangle is an indication of WARNING of drive system, The check lamp is for the engine and the priuschat post of the round yellow light is the brake system warning lamp which actually is tied into. My maintenance required light has been flashing and now is solid. This tutorial is based on the Toyota owner's manual.