Connect the phone to stereo, activate device assistant, phone call or play audio from the device through stereo. the stereo will reboot. this has occurred a number of times during the first couple weeks of ownership. doesn't matter if vehicle is in motion or not.
Back up alarm too loud, this is a safety issue. fact it is so loud you can not hear the rear cross-traffic alert or any person outside the car yelling. toyota needs to either develop a method so the owner can adjust the backup alarm volume or have the dealer turn down the volume free of charge.
When using iphone with bluetooth random songs play while directional navigation prompts play (see http://osxdaily.com/2017/07/29/stop-autoplaying-music-iphone-car-bluetooth/). this creates driver distraction. the problem is more-so with apple ios rather than the prius in particular.
The gear would shift either from 'drive to neutral' or 'reverse to neutral' this happened more than 10 times when i had my sister, mother, and father in the car. 1) it happened when i was pulling out of the garage (about 20 degree angel) going up the hill. i went to pick them up, all 3 pf them went in. i had my foot on the brake and gear on drive, when i let go of the brake the gear shifted automatically on neutral. after, 3 tries, the car finally was able to go forward without struggle. 2) i was trying to back in one of the spot (flat ground), foot on the brake, gear on reversed. when i let go of the brake the gear shifted to neutral automatically. i struggled for 3-4 times before the was able to hold on reversed and park the car safely. 3) when i was in the middle of the intersection (flat ground). i had my foot on the brake, when i finally was able to make a turn, my foot on the foot and gear on drive, when i let go of the brake the gear shifted to neutral of the the sudden, i had to try 3-4 times before it was able to move forward without a struggle 5) i was on a hill (about 20-30 degree angle) facing up. my foot was on the brake and gear on drive, when i let go of the brake the gear was shifted to neutral. i struggled for 5-10 minutes (going from drive to neutral back in forth) as my car was not able to hold drive mode, i eventually asked my family to get out of the car as i was getting worried and frustrated, my family was out of the car but i was still struggling, in the process i hit a car behind me. 6) i was finally able to park the car in with any passengers and somewhere flat ground. i left my car for 30 minutes and came to drive my car. i started my car, i had my foot on the brake and gear on drive. i let go of the brake then my gear shifted to neutral again, i struggled for 3-4 times before the car was able to hold on drive