If your vehicle has power locks, it has a programmable automatic door unlock feature.
The doors can be programmed through the Driver Information Center (DIC) to automatically unlock several ways. See DIC Vehicle Personalization for more information.
Chevrolet Cobalt Service & Repair Manual. Reading Lamp Bulb, Replace
1.
Remove reading lamp lens (1) from lamp,
Fig. 1.
2.
Remove bulb (2) from reading lamp,
Fig. 1.
3.
Reverse procedure to install.
Fig. 1 Reading lamp bulb removal ...