I would guess the inside ambient air temp sensor may need to be replaced.
BoatWaco · Super Moderator 1997 SL500 Sport pano triple black 2010 R350 - sold 2014 E350 - sold Joined Jan 11, 2011 · 151 Posts #2 · 4 mo ago View full thread I would guess the inside ambient air temp sensor may need to be replaced.