2008 Chevy Cobalt change oil light?

[A.T.]

I recently got a 2008 Cobalt LS sedan, about two weeks ago. Yesterday I noticed the "change oil soon" message come up. Is there a sensor or something that needs to be reset that was probably missed when the dealer changed the oil?
I don't have an oil reset option.

 

[djm43north]

With engine off and ignition on, press accelerator to the floor 3 x. I believe this should reset the change oil change light.