2010 Prius Yellow Triangle Warning Light. The master warning light, or even the Check Engine Light only illuminates if a situation occured or persists. solid YELLOW TRIANGLE.however, the light did go off after I pulled over and checked oil and got back on I got the warning triangle driving with the rear hatch not closed completely.
I recently did a realignment of my rear axle and ever since then I've had a problem with the same light coming on.
Everything appears to be working correctly the users are just getting frustrated by seeing the triangle.
Of course if you checked the. It will go on when a trouble/fault with a primary system (emissions, engine, hybrid system That warning light is not the check engine light, it has to do with the charge/recharge systems. The warning light could be something as simple as a low oil pressure warning, or it could mean something more.