GM Service Manual Online
For 1990-2009 cars only

Headlamp Bulb Replacement Low Beam

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

    Warning: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

       • Turn off the lamp switch and allow the bulb to cool before changing the bulb.
       • Leave the lamp switch OFF until the bulb change is complete.
       • Always wear eye protection when changing a halogen bulb.
       • Handle the bulb only by its base. Avoid touching the glass.
       • Keep dirt and moisture off the bulb.
       • Properly dispose of the used bulb.
       • Keep halogen bulbs out of the reach of children.

  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Note: For left headlamp access, go to step 3. For right headlamp access, go to step 5.

  3. Remove the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement.

  4. Object Number: 2040546  Size: SH
  5. For access to the left headlamp, release the air cleaner cover retaining clips (1).

  6. Object Number: 2040549  Size: SH
  7. Detach and move the air cleaner upper cover (1) rearward.
  8. Go to step 7.


    Object Number: 1949709  Size: SH
  9. For access to the right headlamp, disconnect the coolant recovery hose (2) from the coolant recovery reservoir filler neck (1).

  10. Object Number: 2040551  Size: SH

    Note: Remove the coolant recovery reservoir filler neck by pulling upwards. Allow the coolant recovery reservoir filler neck to drain before completely removing it from the vehicle.

    Note: Place a clean workshop cloth over the opening of the coolant recovery reservoir immediately after removing the coolant recovery reservoir filler neck to prevent contamination of the coolant.

  11. Remove the coolant recovery reservoir filler neck (1).

  12. Object Number: 2040578  Size: SH

    Note: Note the orientation of the low beam headlamp dust cap (2) and tabs on the headlamp assembly (1) for installation.

    Note: Rotate the low beam headlamp dust cap (2) counter-clockwise to remove.

  13. Remove the low beam headlamp dust cap (2) from the headlamp assembly (1).
  14. Disconnect the low beam headlamp bulb electrical connector (3).

  15. Object Number: 2040579  Size: SH

    Note: Rotate the low beam headlamp bulb (2) counter-clockwise to remove.

  16. Remove the low beam headlamp bulb (2) from the headlamp assembly (1).

Installation Procedure


    Object Number: 2040580  Size: SH

    Note: The different-sized tabs on the bulb base and mating cut-outs in the headlamp assembly allow the bulb to seat correctly in one orientation position.

    Note: Do not handle the quartz envelope (2) of the low beam headlamp bulb (3). Wipe the quartz envelope (2) immediately with methylated spirits if it is touched accidentally or the performance of the low beam headlamp bulb (3) will deteriorate.

    Note: Rotate the NEW low beam headlamp bulb (3) clockwise to install.

  1. Install the NEW low beam headlamp bulb (3) into the headlamp assembly (1).

  2. Object Number: 2040581  Size: SH
  3. Inspect the low beam headlamp dust cap seal (1) and replace if necessary.

  4. Object Number: 2040582  Size: SH
  5. Connect the low beam headlamp bulb electrical connector (3).
  6. Note: Rotate the low beam headlamp dust cap (2) clockwise to install.

  7. Install the low beam headlamp dust cap (2) to the headlamp assembly (1).

  8. Object Number: 2040546  Size: SH

    Note: Ignore step 5 if access to the right headlamp was required.

  9. Reposition the air cleaner upper cover and secure the air cleaner cover retaining clips (1).

  10. Object Number: 2040561  Size: SH

    Note: Ignore steps 6 and 7 if access to the left headlamp was required.

    Note: Align the tab and keyway (2) and push the coolant recovery reservoir filler neck down into the coolant recovery reservoir (3) to install.

  11. Install the coolant recovery reservoir filler neck (1) into the coolant recovery reservoir (3).

  12. Object Number: 1949709  Size: SH
  13. Connect the coolant recovery reservoir hose (2) to the coolant recovery reservoir filler neck (1)
  14. Install the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement.
  15. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  16. Check all vehicle lights for correct operation.

Headlamp Bulb Replacement High Beam

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

    Warning: Halogen bulbs contain gas under pressure. Handling a bulb improperly could cause it to shatter into flying glass fragments. To help avoid personal injury:

       • Turn off the lamp switch and allow the bulb to cool before changing the bulb.
       • Leave the lamp switch OFF until the bulb change is complete.
       • Always wear eye protection when changing a halogen bulb.
       • Handle the bulb only by its base. Avoid touching the glass.
       • Keep dirt and moisture off the bulb.
       • Properly dispose of the used bulb.
       • Keep halogen bulbs out of the reach of children.

  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Note: For left headlamp access, go to step 3. For right headlamp access, go to step 5.

  3. Remove the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement.

  4. Object Number: 2040546  Size: SH
  5. For access to the left headlamp, release the air cleaner cover retaining clips (1).

  6. Object Number: 2040549  Size: SH
  7. Detach and move the air cleaner upper cover (1) rearward.
  8. Go to step 7.


    Object Number: 1949709  Size: SH
  9. For access to the right headlamp, disconnect the coolant recovery hose (2) from the coolant recovery reservoir filler neck (1).

  10. Object Number: 2040551  Size: SH

    Note: Remove the coolant recovery reservoir filler neck by pulling upwards. Allow the coolant recovery reservoir filler neck to drain before completely removing it from the vehicle.

    Note: Place a clean workshop cloth over the opening of the coolant recovery reservoir immediately after removing the coolant recovery reservoir filler neck to prevent contamination of the coolant.

  11. Remove the coolant recovery reservoir filler neck (1).

  12. Object Number: 2040583  Size: SH

    Note: Note the orientation of the high beam headlamp dust cap (2) and tabs on the headlamp assembly (1) for installation.

    Note: Rotate the high beam headlamp dust cap (2) counter-clockwise to remove.

  13. Remove the high beam headlamp dust cap (2) from the headlamp assembly (1).
  14. Disconnect the high beam headlamp bulb electrical connector (3).

  15. Object Number: 2040584  Size: SH

    Note: Rotate the high beam headlamp bulb (2) counter-clockwise to remove.

  16. Remove the high beam headlamp bulb (2) from the headlamp assembly (1).

Installation Procedure


    Object Number: 2040586  Size: SH

    Note: The different-sized tabs on the bulb base and mating cut-outs in the headlamp assembly allow the bulb to seat correctly in one orientation position.

    Note: Do not handle the quartz envelope (2) of the high beam headlamp bulb (3). Wipe the quartz envelope (2) immediately with methylated spirits if it is touched accidentally or the performance of the high beam headlamp bulb (3) will deteriorate.

    Note: Rotate the NEW high beam headlamp bulb (3) clockwise to install.

  1. Install the NEW high beam headlamp bulb (3) into the headlamp assembly (1).

  2. Object Number: 2040581  Size: SH
  3. Inspect the high beam headlamp dust cap seal (1) and replace if necessary.

  4. Object Number: 2040587  Size: SH
  5. Connect the high beam headlamp bulb electrical connector (3).
  6. Note: Rotate the high beam headlamp dust cap (2) clockwise to install.

  7. Install the high beam headlamp dust cap (2) to the headlamp assembly (1).

  8. Object Number: 2040546  Size: SH

    Note: Ignore step 5 if access to the right headlamp was required.

  9. Reposition the air cleaner upper cover and secure the air cleaner cover retaining clips (1).

  10. Object Number: 2040561  Size: SH

    Note: Ignore Steps 6 and 7 if access to the left headlamp was required.

    Note: Align the tab and keyway (2) and install the coolant recovery reservoir fill neck by pushing the neck (1) down into the coolant recovery reservoir (3).

  11. Install the coolant recovery reservoir filler neck (1) into the coolant recovery reservoir (3).

  12. Object Number: 1949709  Size: SH
  13. Connect the coolant recovery reservoir hose (2) to the coolant recovery reservoir filler neck (1)
  14. Install the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement.
  15. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  16. Check all vehicle lights for correct operation.