If your vehicle has power door locks, it will have this feature. If you press the power door lock switch when the key is in the ignition and any door is open, all the doors will lock and the driver's door will unlock.
Be sure to remove the key from the ignition when locking your vehicle.
The lockout protection can be overridden by pressing and holding the power door lock in the lock position for three seconds.
Chevrolet Cobalt Service & Repair Manual. Starter, Replace
1.
Disconnect battery ground cable from
battery.
2.
Raise and support vehicle.
3.
Remove starter solenoid terminal nut.
4.
Remove positive battery cable terminal
from starte ...