Verified answer

There is no manual on board procedure to program a keyless remote to this vehicle. This vehicle requires special equipment be connected to the vehicle to program the remote.

Take it to your Dealer $20 buck and if you cobalt cam with keyless

You need to comply with the guidelines to a T. In case you are changing a broken remote, their possibly other issues, just like the receiver. You need to flip the key On and Off so oftentimes, with in a some many seconds. I had a Ford focal point, that was the equal approach...

The dealer has to program it.

Your Owner's Manual has some info on troubleshooting, starting on page 2-4.

If you don't have one, you can download a PDF copy from GM here;

http://www.gm.com/gmownercenter/gm/

http://www.ecarsecurity.com/