GM Service Manual Online
For 1990-2009 cars only

To replace a headlamp bulb, do the following:

  1. Open the hood. See Hood Release for more information.
  2. Remove the two bolts and one nut and then the headlamp assembly.

  3. Object Number: 1257188  Size: B3
  4. Turn the headlamp cap counterclockwise and remove it.
  5. Disconnect the wiring harness connector from the rear of the bulb.
  6. Release the spring that retains the bulb.

  7. Object Number: 1257189  Size: B3
  8. Remove the old bulb.
  9. Install the new bulb.
  10. Reverse Steps 1 through 5 to install the headlamp assembly.