If the drivers door is opened with the ignition off and the lamps on, a warning chime will sound. This indicates that the headlamps are still on.
Chevrolet Cobalt Service & Repair Manual. Front Side Door Latch
Removal
1.
Remove panels and components.
2.
Remove front side door latch screws
(1), Fig. 1.
3.
Remove front side door latch (2).
Installation
1.
Install front ...