My van occassionally sounds this horrible loud alarm.  Sometimes in the
middle of no where.  It seems to be when I slow down or when I first start
it.  It's a constant sound not a beeping.  It is "nails on the chalkboard"
annoyingly loud.  I don't know if all vans have this or it's because mine was
a handicapped wheelchair van that we are turning back to a regular van.  I am
not sure where the alarm is located or why it is alarming.  I'd love to
disconnect it if it isn't an alarm that the van is going to blow:).   By the
way if you know anyone interested in a fully electric wheelchair lift that
fits the vanagon perfectly have them email me.  

Unixx7   
1991 Vanagon Carat
Hagerstown, MD