The concern appears to involve the product or factory finish
Preserve the product identification, purchase records and photographs and follow the applicable manufacturer’s claim process. Ask whether the claim concerns the siding substrate, the finish or another component, because a single document may treat them differently. Do not conclude that a visible color or surface change meets a covered defect definition without reviewing the actual terms and assessment.
Notice next: Locate the warranty issued for the installed product and record any required notification or documentation before altering the affected area.