josh Cheng 
2015 Toyota Sienna Minivan SE Premium 8-Passenger 4dr Minivan (3.5L 6cyl 6A)
Toyota of SunnyvAle does not honor warranty servic
 I have a 2015 Super White Sienna SE with Premium package.  After 1 month, I have been experiencing issues with the Navigation: It powers down while in use and it freezes periodically.  When I brought it in Toyota of Sunnyvale, they refused to look into it even though I have the issue on video.  I don't recommend a Toyota Sienna until they fix the issue and also alert their Toyota dealers of the problem.  When I spoke to Toyota they said that they cannot force a dealership to look into it.  So it is tough to buy a product that Toyota cannot stand by and Toyota of Sunnyvale's Director of Service, Bob Pelletier even cussed me out when I tried to get him to look into it.   I do love the Sienna if it wasn't for the jittery Navigation system.