Quote:
Originally Posted by Steven Christianson
Is it necessary to periodically update the Navigation DVD. I have a 2006 Prius and the Navigation system frequently says "left turn" when the map shows "right." Would updating the Navigation DVD fix this?? 
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All of the navigation software no matter whether it's in a honda, toyota, garmin or Mapquest is made by Navteq. Updating will not help one bit if the mistake is in both sets of software which it most likely is. The only thing that updating does is add new streets, restaurants etc. The nav system does what the software tells it to no matter if it's wrong or right. I have a Honda Pilot with Nav, the woman doing the talking is hard to understand, left turn often sounds like right turn as in flied lice.
gene