04-24-09, 11:42 AM
I am experiencing an interminnent fault with my entire audio system. I have a 05 STS that muted in the middle of my drive last week. The screen shows the CD playing and navigation works but no sound. I even noticed that I don't hear the turn signal ticking. The settings menu doesn't allow me to change vehicle settings. It displays a "vehicle personalization system error". Before I could get it to the dealership it somehow began to work just fine for a few days but now it's out again. Does anybody have any idea what could cause this error?
If you're no longer under warranty, I'd suggest the reset procedure...
Remove both battery cables and touch them together. If it persists, there is a fault in the Nav unit. Dealers just replace with a depot rebuilt unit. I'd be interested in their price & if any warranty on the repair (30 days)?
I wouldn't be surprised to find some independent company working on Denso Nav/Radio units. But I haven't looked. I know there are people who rebuild other Caddillac/Bose head-ends (receiver/amp) and speakers.
04-25-09, 08:18 PM
Have your battery tested! I had issues with my NAV system and had to keep resetting it by disconnecting the battery, bought a new battery and havent had an issue since then.