One problem related to transmission not go into gear has been reported for the 2010 Toyota Prius. The most recently reported issues are listed below.
Car would not drive, or reverse it shifts to neutral since first week I bought the car in Aug 2010. I bought a Toyota Prius iii 2010 (from the dealership Toyota of kearney mesa in san diego) in 2010. The car from the beginning would shift back to neutral when I set it to drive or reverse. I bought the car and am the only owner). After I encounter this, within the week I took it to the dealership where I bought it (san diego kearny mesa) and they told me that it was not a problem. Yes, it was a problem and they refused to fix it. This has happen to my car from week 1. Now 5 years later, today, the car would not engage in "d" or reverse. I tried at least for 10 minutes. I called a dealership now in seattle (since I take my car here for service) and I was told that they never heard about it. I searched online and I found that this problem/bug does happen. Today I could not set my car to drive or reverse for about 10-15 minutes. It's a safety issue. My steps: 1. Depress power button (to turn on) 1. 1. Wait about 5-10 seconds 2. Depress the break + engage in d (drive) or (r) reverse. 3. The car goes to "n" neutral and cannot be put in gear drive or reverse. 4. Turn car off. Go back to step 1 until your car engages.