Problems with locks , locking and unlocking 2006 chevy cobalt

SOURCE: my 2005 chevy cobalt factory radio is locked

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!

SOURCE: My 2006 Chevy cobalt key will not turn completely

ur gear shift has a little plastic bar on gear shift and it has crack on the side u cant see have it changed out and both of ur problems will be solved at same time.

SOURCE: my 2006 chevy cobalt 2.2 liter sputters

Fault with the IAC valve.there maybe a trouble code associated with it also./ Go to your nearby autozone or auto parts retailer and ask them to put a scanner to the car....make note of the codes if any are found. the IAC valve i usually locate don the throttle body and can be removed for inspection and sometimes cleaning using a good throttle body cleaner spray and a pipe cleaner brush.

SOURCE: CHevy cobalt door locks- lock and unlock while I

Could be a problem in the shiftier. Your car doors lock automatically when you put the car in drive. They unlock when you put the car in park. The switch located in the shiftier can go bad causing the locks to randomly lock and unlock. Also, this can cause the key to get stuck in the ignition.

SOURCE: I cannot get my liftgate to lock on my 2006 Chevy

You have to replace the liftgate fuse, it is marked "ECC" fuse in the fuse panel. The row closest to the engine at the bottom.
Should be a 10mamp