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Grid Filament Repair

  1. To repair grid, turn ignition switch to LOCK position and disconnect negative battery cable. Wipe area clean with isopropyl alcohol. Be sure to clean 1/4" (6 mm) beyond each side of break.
  2. With glass at room temperature of 70-90°F (20-32°C), position masking tape along both sides of grid line at damaged area. See Fig 1 . Apply GM P/N 12346001 (Canadian P/N 10951643) or equivalent repair material to grid lines and carefully remove masking tape. Holding heat gun 1" (25 mm) from repair area, apply heat at a minimum of 500°F (260°C) for 2-3 minutes. If heat gun is not available, allow repair area to air dry for at least 24 hours at an ambient temperature of 70-90°F (20-32°C).
  3. Test defogger operation to verify repair.
Fig 1: Repairing Grid Lines
G92A01033Courtesy of GENERAL MOTORS CORP.
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