Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Installation Procedure
IMPORTANT:
- Ensure that the grid line repair material is not beyond the expiration date.
- Repair decal or tape must be used in order to control the width of the repair area.
- If the repair decal is used, verify that the die-cut metering slot is the same width as the grid line.
- Thoroughly stir the grid line repair material until a uniform color appears.
- Verify that there are no air bubbles in the grid line repair material in the repair area.
- Use a grease pencil in order to mark the grid line break (2) on the outside of the rear window with a grease pencil.
- Using GM P/N 12346001
(Canadian P/N 10951643) or equivalent to repair the grid lines.
Apply the grid line repair (2) decal or 2 strips of the tape above and below the repair area.
- Use the brush (3) in order to spread the grid line repair material (1). Ensure that the repair material covers all of the areas of the cut out.NOTE: The grid line repair material must be cured with heat. To avoid heat damage to the interior trim, protect the trim near the repair area where heat is to be applied.
- Without disturbing the grid line repair material, carefully remove the decal or tape (2).
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
