One problem related to vehicle shudder has been reported for the 1999 Buick Regal. The most recently reported issues are listed below.
Contact owns a 1999 Buick Regal. While driving 5 mph, up a hill, the transmission would slip or take a very long time to shift gears. In addition, the vehicle would shake would shake. The dealer was unable to diagnose the failure. The current mileage was 85,000 and failure mileage was 30,000.