We bought a used 2005 Caravan (the one with NO extras) in April and starting in June the warning signal has dinged without a warning light coming on the dash 4 or 5 times. This doesn't happen when you start the van, it's always while the van is being driven, and it can go weeks without it happening. All the lights look fine when the van is started. I took it to the dealer for the airbag sensor recall today and the service guy was clueless. He recommended setting up an appointment to have the van checked out, but with 2 small kids and the van having the carseats it very hard for me to just drop it off for "a while", especially when the closest dealer is 45 min. away. Anyone have any ideas? Thanks.