Just completed a 6500 mile round trip from Virginia to California in our new Lexus RX 330. The Navigation system is a total bust. It cannot be relied upon to perform basic functions with accuracy.
Problems began to be obvious as we headed West on I40. The NAV system would repeatedly suggest we take wrong exits, and then take a right or left turn.
Our first stop West was a Courtyard Marriott in Santa Fe N.M. With the correct address entered as a destination in the NAV system, the routing was so poor it took us 30 minutes of winding through Santa Fe streets before we finally got to the motel. All a correct routing would have provided was to exit I25 at the correct exit, and proceed two miles to the motel instead we were led on a grand tour in the most circuitous manner through side streets and back alleys!!!
When I reached my daughter's locale in California it repeatedly announced that the route guidance could not be followed because the area was not mapped.
When I went to find a Toyota dealer for an oil change (there was no nearby Lexus dealer) it declared the whole town of Lompoc CA as unmapped and without route guidance.
The poorest part of the system design is the inability to specify just a city or town as a destination. It must have a specific address in order to be set to a destination.
My 2006 Honda Accord with NAV is head and shoulders above the LEXUS NAV. For that matter, my Garmin Streetpilot 2610 is superior to both.
From my initial experience on this cross country trip, LEXUS has serious deficiencies with its NAV system and owes its owners a new DVD that does what owners expect of an integrated GPS mapping system.
JJS