2006 MDX. I disconnected the battery to clean the terminals, and I had to enter the 5 digit code to reset the radio. No problem. Now the control panel wants a 4 digit code before I can access any of the fan controls, temp, etc. Where do I get that 4 digit code?
Is it possibly asking for a code for your phone handsfree interface? That would have been programmed by the previous owner, and could be anything. I'd try the "usual suspects"... 0000 and 1234.
Iirc holed down “cancel, map and menu“ buttons simultaneously, should go into a diag mode. There is a window that will have the serial number for navigation unit. Dealer will have the code for that serial number.
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