Two problems related to vsa warning light on have been reported for the 2012 Toyota Prius. The most recently reported issues are listed below.
The problem started with a chirping noise when the brake pedal is depressed. Today the car appears to lose regenerative braking charging. The vehicle stability control and abs light and brake light came on. The brake appeared to be mushied.
I'm driving around 60mph and suddenly the electronic stability control light went on and the all wheels suddenly braked. It's just so dangerous, good thing no body behind me at that moment. This happened several times. The car could brake suddenly by itself without warning even when it's high speed or low speed. There's a clicking noise under the dashboard. This is because of the malfunction of electronic stability control in the Prius. It could cause the car brake by itself without warning and could cause big accident, especially in the freeway.
| Electronic Stability Control problems | |
| Vsa Warning Light On problems |