Hi, I'm needing some help with the wife's Cobalt. I got Silver Star bulbs for her for Christmas as she wasn't really happy with the stock ones. Put them in today and now the auto function for them does not work. You have to turn the headlights on and then they work but the auto does not. She wants the auto to work. Any help would be greatly appreciated.

 

To me it sounds like something came lose when you replaced them...try sticking your old ones back in and see if the auto works and if it doesnt then something came loose...

but you never know with the newer GM's they are crazy sometimes