The 2009 Chevrolet Impala has 3 recalls, the most serious affecting police-package vehicles only: a front lower control arm that can fracture and cause the driver to lose steering control entirely.
The other two recalls concern occupant protection for all trims. The front seatbelt on the driver's side door edge may not be properly attached to the lap belt anchor pretensioner mounted to the seat, meaning the belt may not hold the occupant in place during a crash. Separately, the front passenger seat frame can rub against and damage the wiring for the passenger presence sensor, causing the system to fail to detect that someone is sitting in the seat and disabling the passenger-side airbag as a result.