I was not receiving any codes but had issues with cruise, power locks and remote start. It was imtermittent problem that made it hard to diagnose. Check to make sure everything else is working properly. I discovered that the auto door locks didn't lock when I moved the shifter into drive and didn't open when moved back to park. The cruise did not work, the remote start wouldn't work and the transmission did not shift smoothly. After 3 trips to the dealer they found a (TSB) technical service bulletin that told them to reflash the (ECM) computer. Dealer completed this last week and issue was resolved.