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.
Chevrolet Impala Recalls
On 130 vehicles, the driver's air bag may not deploy properly if needed in a crash. Also, the inflator could rupture. This could increase the risk of injury to the driver and other passengers if pieces of the inflator strike them. Dealers will inspect and install a new driver's air bag if needed. The recall began March 11, 2003. The GM recall number is 03008.
A fuel return line may sever in a frontal collision, which could cause a fuel leak. In the presence of an ignition source, a fuel leak may result in a fire.
No noticeable symptoms may be present, but a fire hazard is potentially dangerous, so have the vehicle inspected immediately.
What Do I Do?
Contact your dealer to see if your vehicle is affected by the recall. They will install a brake master cylinder bracket that will maintain positioning of the fuel line in a frontal crash.
The side air bag inflator may separate from the air bag module during deployment. This may cause reduced protection and injury to occupants. Dealers will replace the side impact air bag module.
General Motors is recalling 2001 Chevrolet Impala and Monte Carlo models because the air bag sensing and diagnostic modules (SDM) may experience a memory error, which could prevent the air bags from deploying in an accident. Dealers will replace the sensing and diagnostic module.
The seat belt buckles may not have been properly heat-treated during the manufacturing process. This may cause the buckles not to function correctly during a collision, which may cause injury. Dealers will replace the seat belt buckles.