Review on ACDelco 15 51254 Conditioning Evaporator Temperature by Christopher Gulledge

Well, replacing it with a 5th Gen Camaro isn't as hard as others have claimed. But this solved the problem, it runs on resistance when the evaporator freezes to turn off the AC to allow the evaporator to defrost. It loosens and screws on the Camaro 2010 SS. Once you turn around and stick your head under the passenger dash, it's right next to the evaporator block. Using only a needle tip and a small flathead screwdriver, disconnect the two wire harnesses, twist counterclockwise a quarter turn, and pull out. For DIYers If your compressor doesn't turn on the AC relay when it turns on then it most likely does unless your low pressure switch is made.