Table 1 shows 15 common engine and engine cooling related problems of the 2011 Toyota Prius. The number one most common problem is related to the engine and engine cooling (24 problems). The second most common problem is related to the car stall (five problems).
Coolant leak into the engine, confirmed by the Toyota servicing center. This may be a common problem with the Toyota Prius, causing early engine failure from a design defect. Read details...
My car had the hybrid system software update recall done and it still stall while driving , even at highway speed Read details...
Engine developed an oil leak around 120,000 miles. Dealer ran an oil leak test ($700)and performed something else for $300 dollars. Nothing work. Dealer says the fix is to buy a new short block for $6,700. I will not. I'm adding oil myself to car about once every 10 days Read details...