Table 1 shows seven common power train related problems of the 2004 Toyota Prius. The number one most common problem is related to the power train (15 problems). The second most common problem is related to the automatic transmission (ten problems).
Shifter sticking in drive position as opposed to returning to its home position. When this shifter sticks, the park button becomes disabled and vehicle remains in drive even though park button is engaged Read details...
The contact owns a 2004 Toyota Prius. The contact stated that he applied the brakes and depressed the shift button to shift into park. As he removed his foot from the brake pedal, the vehicle then rolled forward until pressure was reapplied to the brakes. Read details...
Automatic transmission control problems. The transmission control lever became worn. Sometimes the vehicle began to the roll with this defect. The internal spring that moves the transmission lever back to the previous position became worn and now it doesn't return to it's normal position when Read details...