2010 Chevrolet Cobalt Owners Manual - Bulb Replacement

Bulb Replacement

For any bulb changing procedure not listed in this section, contact your dealer/retailer.

Halogen Bulbs

WARNING:
Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps

A. Front Turn Signal/Parking Lamp
B. Sidemarker
C. Headlamp

To replace one of these bulbs:

1. Open the hood.

2. Remove the two bolts from the headlamp assembly.
3. Remove the two fasteners from the fascia. Assistance may be needed for Steps 4 and 5.
4. Pull the front fascia back.
5. Pull the headlamp assembly up at an angle and towards the radiator to remove it.
6. Disconnect the bulb base from the wiring harness by lifting the locking tab.
7. Disconnect the wiring harness from the bulb socket.
8. Remove the retainer by turning it counterclockwise.
9. Turn the bulb socket for the headlamp, front turn signal, or parking lamp counterclockwise. For the sidemarker bulb, use a tool to assist in turning the bulb socket.
10. Pull the old bulb out of the socket.
11. Install a new bulb.
12. Reinstall the bulb assembly by reversing Steps 1 through 9. When reinstalling the headlamp assembly, first make sure that the wiring harness is in its original position. If not, the headlamp assembly will not fit correctly. Align the two tabs on the bottom of the assembly that fit into two slots in the headlamp assembly bracket.

Center High-Mounted Stoplamp (CHMSL)

To replace a CHMSL bulb:

1. Open the trunk.
2. Press the tabs to release the bulb assembly.

3. Pull the bulb assembly down to access the bulbs.
4. Pull the old bulb straight out.
5. Push the new bulb straight in until it clicks.
6. Align the tabs in the bulb assembly with the assembly in the trunk lid. Push the bulb assembly back into place until it snaps in. You may need to use a tool to guide the tabs into the assembly.

Taillamps and Turn Signal Lamps (Coupe)

To replace this bulb:

1. Open the trunk.
2. Remove the trunk trim and pull back fastener.
3. Disconnect the wiring harness by lifting up on the tab to release and pull it straight out.
4. Turn the bulb socket counterclockwise and pull it straight out of the taillamp assembly.
5. Pull the old bulb straight out of the bulb socket.
6. Push the new bulb straight into the bulb socket until it clicks.
7. Push the bulb socket into the taillamp assembly and turn it clockwise to lock it into place.
8. Push the wiring harness straight into the bulb socket and push down on the tab.
9. Reinstall the trunk trim and fastener.

Taillamps, Turn Signal, Stoplamps and Back-up Lamps (Sedan)

To replace one of these bulbs:

1. Open the trunk.
2. Remove the trunk trim and pull back fastener.
3. Remove the additional fastener.
4. Remove the outer two screws from the taillamp assembly.
5. Lift up on the tab and pull the wiring harness straight out.
6. Remove the taillamp assembly from the quarter panel.

A. Sidemarker
B. Stoplamp/Turn Signal/Taillamp
C. Back-up

7. Turn the bulb socket counterclockwise and pull it straight out.
8. Pull the old bulb straight out of the socket.
9. Push the new bulb straight into the socket.
10. Push the new bulb into the taillamp assembly and turn it clockwise to lock it into place.
11. Reinstall the taillamp assembly into the quarter panel.
12. Push the wiring harness straight into the taillamp assembly and push the tab down.
13. Reinstall the outer two screws into the taillamp assembly.
14. Reinstall the trunk trim and the fasteners.

Back-Up Lamps (Coupe)

To replace a back-up lamp bulb:

1. Open the 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 top.
4. Pull the old bulb straight out of the bulb socket.
5. Push the new bulb straight into the bulb socket until it clicks.
6. Push the bulb socket into the lamp assembly and turn it clockwise to lock it into place.

License Plate Lamp

To replace one of these bulbs:

1. Remove the two screws holding each of the license plate lamps.
2. Turn and pull the license plate lamp toward you through the opening.
3. Turn the bulb socket counterclockwise and pull the bulb straight out of the socket.
4. Install the new bulb.
5. Push the bulb straight into the socket and turn clockwise to reinstall.
6. Push and turn the license plate lamp away from you through the opening.
7. Reinstall the two screws holding the license plate lamp.

Replacement Bulbs

For replacement bulbs not listed here, contact your dealer/retailer.