GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2003 🢒 Grand Am 🢒 Service and Appearance Care 🢒 Bulb Replacement 🢒 Center High-Mounted Stoplamp (CHMSL)

To replace a center high-mounted stoplamp (CHMSL) bulb, do the following:

  1. Open the trunk lid. See Trunk for more information.
  2. Locate the center high-mounted stoplamp (CHMSL) on the inside of the trunk lid.
  3. Remove the three screws to access the bulbs.
  4. Pull the bulb out from the socket.
  5. Install a new bulb.
  6. Reverse the steps to reassemble the lamp assembly.