Three problems related to side/rear glass have been reported for the 1999 Ford Taurus. The most recently reported issues are listed below.
My husband turned on the rear window defogger and the whole window shattered.
When rear window exploded without cause, causing glass fragments to enter the passenger's compartment. Consumer has contacted the dealer.
Rear hatch window blewout while vehicle was parked. Reason unknown. Ford has been contacted, and replaced window.