GM Service Manual Online
For 1990-2009 cars only

Center High-Mounted Stoplamp (CHMSL) Sedan

  1. Remove the center high-mounted stoplamp cover by pulling down on the cover edges.
  2. Rotate the bulb socket being replaced counter-clockwise 1/4 of a turn and remove the bulb.
  3. Replace it with the appropriate bulb.

Rear License Plate Lamp Bulb Replacement (Sedan Models)

  1. Open the trunk
  2. Reach through the opening on the trunk lid inner panel to access the bulb. Pull release tab and bulb housing together, then pull the bulb housing rearward until the bulb clears the housing.
  3. Remove the bulb and replace it with the appropriate bulb.

Center High-Mounted Stoplamp (CHMSL) Wagon


    Object Number: 1222610  Size: B3
  1. Open the liftgate.
  2. Remove the center high-mounted stoplamp cover by pulling down on the cover edges.
  3. Rotate the bulb socket counter-clockwise 1/4 of a turn and remove the bulb.
  4. Replace it with the appropriate bulb.

Rear License Plate Lamp Bulb Replacement (Wagon Models


    Object Number: 1558480  Size: B3
  1. Open the rear liftgate.
  2. Remove the license plate lamp bulb assembly cover screws on each side using a Phillips screwdriver.
  3. Pull the license lamp cover assembly down to expose the bulb.
  4. Remove the bulb and replace it with the appropriate bulb.