GM Service Manual Online
For 1990-2009 cars only

To replace a taillamp bulb, do the following:

  1. Reach underneath the rear of the vehicle.

  2. Object Number: 949456  Size: B3
  3. Find the bulb socket, twist counterclockwise, and remove it from the lamp assembly.
  4. Pull the old bulb out of the socket and push in a new bulb.
  5. Reinstall the socket into the lamp assembly and turn it clockwise to secure.