GM Service Manual Online
For 1990-2009 cars only

You may reattach a rear defogger bus bar lead wire or a terminal by soldering. Use a solder containing the following items:

    • 3 percent silver
    • A rosin flux paste
  1. Before soldering the bus bar, buff the repair area using a fine steel wool. This removes the oxide coating formed during the window manufacture.
  2. Coat the soldering iron tip with solder before you begin soldering. Use only enough heat in order to complete the following operations:
  3. • Melt the solder
    • Ensure a complete repair
  4. Use a brush in order to apply the paste-type flux in small quantities to the wire lead and bus bar repair area.
  5. Do not overheat the wire when soldering the wire to the bus bar.