2010 Chevrolet Cobalt Q&A
2010 Chevrolet Cobalt Question: Every now and then, when I turn the key, there is no response. Why?
Have the Ignition Switch (not relay) replaced, and find a dealer or other shop to program the PCM and BCM with the latest calibrations. - ChevyASE
Same problem with my 2010 Cobalt. Starter was replaced. - bluecob