ES300 navigation/stereo button problem

[Josh]

Looked at a used ES300 today that has the integrated stereo/navigation
option and I noticed none of the buttons on the navigation console
worked. All the knobs to control the tuning and volume work, as well
as the touch-screen display seem to work, but the buttons on the
right, left, and bottom portions of the panel don't work at all. This
seems more like a systemic problem where a wire is loose to the
buttons or something rather than the entire system being bad, but I am
wondering if anyone else had this problem?
I'm particularly curious how much this cost, as I will decrease my
offer on the vehicle by a corresponding amount.
Thanks so much in advance!
--JC

[Josh]

Also, if it matters, the lexus es300 was a 2003 model.

[Ray O]

Post by Josh
Looked at a used ES300 today that has the integrated stereo/navigation
option and I noticed none of the buttons on the navigation console
worked. All the knobs to control the tuning and volume work, as well
as the touch-screen display seem to work, but the buttons on the
right, left, and bottom portions of the panel don't work at all. This
seems more like a systemic problem where a wire is loose to the
buttons or something rather than the entire system being bad, but I am
wondering if anyone else had this problem?
I'm particularly curious how much this cost, as I will decrease my
offer on the vehicle by a corresponding amount.
Thanks so much in advance!
--JC

I am not familiar with the button layout on the 2003 ES, but some buttons
only work when the engine is running and the car is parked.

[greg]

The nav system buttons are integrated into the nav unit itself; there
are no separate wires to each button. Your best bet is to take the car
to a Lexus dealer to verify the buttons are not working properly and
get an estimate.

[satmech]

Post by Josh
Looked at a used ES300 today that has the integrated stereo/navigation
option and I noticed none of the buttons on the navigation console
worked. All the knobs to control the tuning and volume work, as well
as the touch-screen display seem to work, but the buttons on the
right, left, and bottom portions of the panel don't work at all. This
seems more like a systemic problem where a wire is loose to the
buttons or something rather than the entire system being bad, but I am
wondering if anyone else had this problem?
I'm particularly curious how much this cost, as I will decrease my
offer on the vehicle by a corresponding amount.
Thanks so much in advance!
--JC

Nav functions become unavailable at greater than 3? mph.

There are workarounds to be found on the net, but dealers are forbidden to
implement them.