Chevrolet Cobalt Owners Manual. Back-Up Lamps (Coupe)
To replace a back-up lamp bulb:
1. Open the trunk. See Trunk.
2. Locate the back-up lamp bulb assembly in the
trunk lid.
3. Turn the bulb socket counterclockwise and pull it
out of the lamp assembly.
On vehicles that have a back-up lamp cover, first
remove it by pressing the tab at the to ...