The radio in a 2005 chevy cobalt in lock need it unlock

CALL A LOCAL LOCKSMITH

Is this the factory radio?

Check the cigarette fuse, Sometimes it's the memory of the clock on the radio and if you pop that from a cell phone your radio won't work..

You may have accidentally broke the controller. They are fragile. The newer cars like yours automatically set the alarm when the doors are locked from keychain remote, or locking manually. New remote, $50-100.

Possibly need to lubricate the shift lock. If it stuck, use spare key to insert to the shift lock to unlock.

Mai Lor

The battery in the remote may be getting weak, try having the battery replaced.

rack is bad

Could be a problem with the switch located in the shifter.

There are only 2 things you can try to fix this yourself: turn off the engine and open the driver side door (to turn the radio off). Wait 5 minutes, start your car.
If that does not solve it, turn off your engine, disconnect the car battery, wait about 5 minutes. Reconnect the battery (negative pole first - black connector) and try your radio again.

If neither one of these two fix your problem, I am afraid only a GM service center or dealership can fix the problem. The Cobalt is notorious for all kinds of electrical issues.

Thanks for using the fixya forums!

i had the same problem with my 2005 cobalt.. found out the wire in the driver side door had shorted out. if your smelling something burning thats prob it