Q: How to replace the Headlight Bulb on Chevrolet Cobalt,HHR and Saturn ION?
A: To get the Headlight housing out of Cobalt models, all you have to do is pull it out so that you can reach the bulbs from behind. Turn the headlight retaining ring to the left and remove the large bulb holder in order to change the bulb. The installation is done by doing exactly opposite of what was done during removal. On ION models, pull out the headlight housing and then remove round dust caps above bulb sockets. Unplug the electrical connector for a light bulb on a car and turn it 1/4-turn counterclockwise to disengage it from a headlamp assembly. When fitting a new lamp into its socket, align three notches on its base with lugs inside light assembly. The installation process is otherwise identical to that of removal. For sedans, take out inner fender liner and unplug connectors for lamps. Twist headlight bulb in counterclockwise direction and remove it before replacing. The installation procedure is contrary to what was performed during dismantling.