In March 2010, GM recalled some 1.05 million Chevrolet Cobalt and Pontiac G5 vehicles to correct a defect with the EPS assist motor. The defect was a buildup of brush debris mixed with oily material on the EPS electric motor armature which caused the motor to stop functioning, which is the same problem identified in the Saturn Ion vehicles. ODI has duplicated this failure in both a Chevrolet Cobalt and Saturn ION previously tested. In the defect notification letter for the previously recalled Cobalt and G5, GM stated that the vehicles may experience a sudden loss of assist that could occur at any time while driving, and that if power steering was lost the vehicle would revert to manual steering mode and would require increased steering effort from the driver. National Highway Traffic Safety Administration