 My 4th 4Runner.  I really like the car, I think it's a great value.  I keep them for approximately 70k miles.  The third one I  had, a 2014, had to have the radio/nav system replaced after a year.  Several of the "buttons" wouldn't work.  Same with the 2nd and 3rd one.  When I went to get the 4th radio in 3 years, they told me it would be $1400.  May sound crazy but I thought the car was a lemon, so I traded it in on a new one.   It's 9 months now and the same thing has started with radio.  Going in in a few days to see what the verdict is this time.    As far as I'm concerned, the Entune Suite radio/nav. system is terrible!   5 radios, 2 cars in 4 years.   Customer service said they were having trouble with the vendor.  Sounds like they need a new vendor.                                        The dealer has been great.