The door ajar light may illuminate and chime during driving, even when the sliding door is closed. Often, this is caused by a faulty switch in the C-pillar; a revised switch is available.Google+
Car Problem Reports
Dodge Grand Caravan Door Adjar Light May Turn On and Chime Will Sound While Driving
Dodge Grand Caravan Problem
Average Mileage: 142,240 mi (75,000 mi - 200,000 mi)
Visitor, 1995 Dodge Grand Caravan, 151,275 mi
Driver side door sensor won't sense that the door is closed. It's distracting! Lights go on and off while excelorating or braking. Door chime goes on constantly.
Visitor, 2008 Dodge Grand Caravan, 75,000 mi
no chime but light on and gate light is lit, even when it is closed
Visitor, 2002 Dodge Grand Caravan, 137,210 mi
Door ajar light on, interior lights on while driving. Very annoying.
Visitor, 1999 Dodge Grand Caravan, 193,000 mi
Door ajar light keeps coming on while driving and locks go crazy
Visitor, 1992 Dodge Grand Caravan, 200,000 mi
my car does that to except the chime don't come on