This is a follow-up to earlier posts re: switch and battery issues.
Dealer ran a test while in for service with the dreaded NPF diagnosis. SA said that no matter what the problem or the setting of the switch, the systems check (Xentry?) would have revealed it. Result was No Fault Stored.
I provided them the information which another, super knowledgeable member had provided. It indicated a known problem with the switch itself. Dealer said it was not applicable because No Fault Stored.
Next step is to contact MBUSA, but I know their response - take it to the dealer.