General Motors is recalling 2004 Chevrolet Impala, Monte Carlo, and Pontiac Grand Prix models because they were produced with lower than specified torque on both front brake caliper to steering knuckle attachment bolts. If one or both bolts fracture, reduced braking and steering control could cause a crash. Dealers will tighten both bolts to the specified torque.
Brakes
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.