I learned to avoid the ASS U ME thing a long time ago. If you have had three burnouts nad the dealer is doing the replacing, HELLO, are they just rotating old stock or has someone there picked up on a problem. The bulbs are rated for 12 volts, so unless that circuit is running at a regulated voltage, you have an overvoltage problem, bad socket or there is more than 1 bulb fried and they are wired in a strange fashion. BTW, did this just start happening??
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.