2010-13 Silverado Engine computer 12633238 "Programmed to your VIN" ECM PCM ECU

The vehicle may or may not start once the computer is installed. If the vehicle does not start an antitheft password relearn procedure will have to be done. This E.C.M. fits the following: 2010-13 4.8/5.3//6.2L Chevrolet Silverado.