radio shuts down and then reboots

Vehicle purchased 02/16 and within the first week the radio would shut down and reboot itself. Brought to the dealer of purchase who advised they have had no other complaints and would check for an update. No update available but Toyota was coming out with one, Called again in May to check on update with no success. Called Toyota in July who knew nothing about an update but did receive a call from the dealer who set up another appointment. Took it back in and was advised still no update but they would replace the radio but could not guarantee the radio would not do the same thing. Still waiting on the new radio.

Update from Aug 25, 2016: Update: Dealer replaced the radio on 08/03/16. New radio same problem, took back to dealer on 8/22 for another update but was told this radio had the latest update available. They, Toyota, suggested to wipe the radio clean and not link the I-phone or anything to it as this might have been the problem. Nope still shuts down and reboots. So now they will replace the radio again. Third radio in 7 months.

Update from Sep 8, 2016: Dealer replaced the radio again. Still told not to link anything through it. Two days after the third radio install same problem. Now they want to keep the vehicle for a couple of days for a Toyota service representative that is more advanced to look at it. Being told there are two other components that link to the radio that might be the problem.

Update from Feb 27, 2018: Electrical problems continued. Doors would lock then unlock when you walked away from the vehicle, power lift gate would not open a lot of the time, key fob would not register not detectedr as you drove the vehicle. Had enough, vehicle traded in after having just under a year.