GM Service Manual Online
For 1990-2009 cars only

Headlamp Assembly or Headlamp Bulb Replacement New Style GMC

Removal Procedure

Caution: 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.

Notice: Avoid touching the bulb or letting the bulb come in contact with anything damp. Oil from your skin or moisture on the bulb can cause the bulb to explode when the bulb is turned on. If either comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry.

  1. Open the hood.

  2. Object Number: 371535  Size: SH
  3. Remove the upper grille baffle.

  4. Object Number: 1109081  Size: SH
  5. Remove the headlamp assembly retaining pin.

  6. Object Number: 1087073  Size: SH
  7. Pull the headlamp assembly from the vehicle, and disconnect the headlamp bulb connectors.
  8. Remove the headlamp assembly from the vehicle.

  9. Object Number: 378547  Size: SH
  10. If replacing the headlamp bulb, twist the bulb counterclockwise and remove from headlamp assembly.

Installation Procedure


    Object Number: 378547  Size: SH
  1. If replacing the headlamp bulb, install the bulb to the headlamp assembly and twist clockwise to lock in place.

  2. Object Number: 1087073  Size: SH
  3. Align the headlamp assembly to the vehicle, and connect the headlamp electrical connectors.

  4. Object Number: 1109081  Size: SH
  5. Install the headlamp assembly retaining pin, making sure that the pin is fully seated and set in place in the retaining groove.

  6. Object Number: 371535  Size: SH
  7. Install the upper grille baffle.
  8. Close the hood.

Headlamp Assembly or Headlamp Bulb Replacement New Style Chevy

Removal Procedure

Caution: 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.

Notice: Avoid touching the bulb or letting the bulb come in contact with anything damp. Oil from your skin or moisture on the bulb can cause the bulb to explode when the bulb is turned on. If either comes in contact with the bulb, clean the bulb with alcohol or a suitable degreaser and wipe the bulb dry.

  1. Open the hood.

  2. Object Number: 371535  Size: SH
  3. Remove the upper grille baffle.

  4. Object Number: 1086653  Size: SH
  5. Remove the headlamp assembly retaining pin.

  6. Object Number: 1087073  Size: SH
  7. Pull the headlamp assembly from the vehicle, and disconnect the headlamp bulb connectors.
  8. Remove the headlamp assembly from the vehicle.

  9. Object Number: 378547  Size: SH
  10. If replacing the headlamp bulb, twist the bulb counterclockwise and remove from headlamp assembly.

Installation Procedure


    Object Number: 378547  Size: SH
  1. If replacing the headlamp bulb, install the bulb to the headlamp assembly and twist clockwise to lock in place.

  2. Object Number: 1087073  Size: SH
  3. Align the headlamp assembly to the vehicle, and connect the headlamp electrical connectors.

  4. Object Number: 1086653  Size: SH
  5. Install the headlamp assembly retaining pin, making sure that the pin is fully seated and set in place in the retaining groove.

  6. Object Number: 371535  Size: SH
  7. Install the upper grille baffle.
  8. Close the hood.