Summary: Certain passenger vehicles equipped with rear suspension knuckle bolts that are not to specification could fracture under high loads that can occur in some driving conditions.

Consequence: If the bolt fractures, the rear suspension linkage could detatch from the knuckle and the rear wheel would be able to turn inboard or outboard. Sudden changes in vehicle handeling could occur, particularly at higher speeds, and the driver may not be able to control the vehicle and a crash could occur without warning.

Remedy: Dealer will replace both of the rear suspension knuckle bolts. The recall is expected to begin February 16, 2005. Owners should contact Chevrolet at 1-800-630-2438 or Pontiac at 1-800-620-7668.