provlima

My ES350 onboard navigation system has been unreliable lately.

Sometimes during routes to destinations it sometimes goes haywire taking me on routes that bring me back to the exact same intersection.

Its now happened enough times where its gotten to the point where I can no longer trust its guidance to unknown destinations. Has anyone else had similar problems with the enform nave system??

Any suggestions on possible solutions?? Thanks for your help

jimmy2x

I'll ask the obvious. Have you done any of the updates?

provlima

Thanks Jim...no I have never updated the nav system
Can that be the problem??

cschmatz

Just traded in my 2010 ES 350 with 91k on it. Never had one problem with anything including the Nav. Never upgraded the Nav either. Hope I have as much luck with the 13 460.

12jimmyjam

Mine even with a recent update will sometimes tell me to drive down the road and do a u turn even when the intersection is open and I can turn. I only use it in big city traffic and use google maps otherwise since it's 10 times better anyway. I'll probably but only non nav vehicles for now on if it means a significantly lower price.

With you taking different routes than other members here, the old nav data may impact your trips more.