Thread: Disconnecting the 12v Battery
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Old 12-02-2006, 11:42 AM
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spiff72 spiff72 is offline
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Real Name: Jeff
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Default Re: Disconnecting the 12v Battery
Quote:
Originally Posted by Pacific85 View Post
Can anyone tell me what happens to the car when the 12v battery is disconnected for 5 minutes? I think I want to do this to reset the nav and have it re-read the firmware off the DVD. Has an easier way been found instead of pulling the battery?

I glanced in the owners manual at the fuse box section, but I think there are at least 3 that reference the radio or nav. I tried to pull these, but I don't think the firmware loaded. I may not have waited long enough either.

So, if I just pull 12v power, do we lose the radio presets? How about the trip odometers? Nav presets? Phonebook entries? If you got the 5.1 update from the dealer, what did they do to force a read on the DVD?

I just want to be prepared when I get to this step. Thanks all for the knowledge.
My understanding is that the only thing you will lose is the radio presets. Phonebook remains intact. I am not certain about the Nav presets, though. I think those survive too, but I am not sure.

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