NHTSA Campaign Id 04V287000; Date: Jun. 23, 2004
Depending on whether one or both bolts backs out or fractures, the result can be locking of the affected wheel during braking and an abrupt steering input in the direction of the locked wheel, reduced braking and noise from the affected wheel, or severing of a brake hose, increased brake pedal travel, and reduced steering control. Reduced braking or steering control could cause a crash.
2004 Chevrolet Impala; 2004 Chevrolet Monte Carlo; 2004 Pontiac Grand Prix
Component: Service Brakes
Manufactured by: General Motors Corp.
Affected Units:: 47,991
Certain passenger vehicles were produced with lower than specified torque on both front brake caliper to steering knuckle attachment bolts. With improper torque, the clamp load at the joint may not be adequate to prevent movement between the caliper bracket and knuckle.
Dealers are to tighten both bolts to the specified torque. Owner notification began on June 28, 2004. Owners should contact Chevrolet 1-800-630-2438 or pontiac 1-800-620-7668.
Recall no. 04049. Customers can also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).
Date Owners notified by Manufacturer: Jun 28, 2004
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