Christopher Lenney 
2010 Toyota Sequoia SUV Platinum 4dr SUV (5.7L 8cyl 6A)
Toyota Navigation thumbs down...
 My 2010 Toyota Sequoia has a nice smooth quiet ride, has plenty of power, and great handling. This is my third Toyota, and I am a very satisfied customer.  However, the factory JBL navigation is the worst navigation I have ever had the displeasure of using.  All essential features are locked out and cannot be accessed when the vehicle is in motion.  My advice, purchase aftermarket NAV and backup camera.