GM will begin a recall of certain 2008-2012 Chevy Impala police cruisers.

According to reports made public by the National Highway Traffic Safety Administration (NHTSA), cars in question have a front lower control arm (FLCA) that may fracture and potentially compromise their handling. At high speeds in particular, the NHTSA reports, the driver could lose control of the car.

A symptom of a fractured control arm is a "squeal" or "chirping" sound that is emitted when the vehicle is turning at low speeds.

No non-police Chevy Impalas have the potential problem, GM and the NHTSA say.

The Associated Press reports that approximately 38,000 cars are thought to be affected in the US and Canada.

GM engineers began an investigation of the problem in February, after two police fleets reported several cases of broken FLCAs near the handling bushing sleeves.  The investigation was completed last month, and the findings put before GM's Field  Performance Evaluation  Review Committee, which voted to issue a recall.

The FLCAs in question came from a supplier that Chevy began using in 2008. All of the cars to be recalled were assembled at GM's plant in Oshawa, Ontario, the Associated Press says.  

The recall is expected to begin on August 21. Cars believed to be affected have been identified by their VIN numbers; and GM will notify affected customers and dealers by mail. The car company will pay for all necessary alterations; and police departments who have paid for repairs made necessary by the defect may seek reimbursement. 

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