The 'service 4wd' warning light had recently started to flash on for a few seconds and then go off by itself, seemingly at random (on flat dry pavement). I took it to the dealer and they said the module was still in 'plant mode'. They cleared the codes and recalibrated and said it tested OK. Anyone know what 'plant mode' is and why it took 5800 miles to start flashing the light? The 'erroneous 4wd service' TSB had been applied several months ago.
('11 Overland Hemi).