2009 chevy cobalt key will not turn when inserted & unable to remove ignition switch w/o key being in the on position. Any suggestions other than taking it to the mechanic? Have tried turning steering wheel, moving shifter, brake pedal, pushed white button under steering column cover.

SOURCE: Short in steering column wiring

torque bit 20 to remove the air bag bolt in the back cover stering puller stering puller to push plate phillip screw driver that about it pierre

SOURCE: changing key ignition need to remove old one and fix ignition rod

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528008f60e

SOURCE: my gear shifter is in

It's a linkage adjustment on the bottom of the vehicle, or the pointer has broken loose from the steering column collar under the steering wheel.

You can sometimes crawl underneath the vehicle to figure out what needs to be adjusted if the problem is down there.

SOURCE: 1995 Oldsmobile Cutlass Ciera turn signal problem

the sswitch is in the steering wheel you must remove the steering wheel being carful to disconnect the airbags in the proper procedure so it wont go off and, the switch will be behind there it is part of the multifunction switch.

SOURCE: 2002 Tahoe steering column wiring problems

The wiring harness that run the multifunction swith has broke. I took my column apart and soldered the wires back together for the mean time. I dont suggest tring to do that its not a good fix. i found your post looking for the harrness. If you disconnect the battery you disconnect the airbag system