where is the ecm located in this car

Left side (driver's side) of engine bay, in front of shock tower, facing front, below transmission control module. Should have side by side multi-pin connector plugs. ...click for full screen

munron is going to give me an eye roll, but be sure you have had your car in for ignition switch re-call

Right you are. I'm sure he got the 4 written notices sent out to him by GM the same as I did and probably a couple more from his local dealer the same as I did. But its fun rolling my eyes, so knock yourself out.