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Does undercoating void corrosion warranty?

WaWaZat

Full Member
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Has anyone who has, or has considered, undercoating heard that undercoating can void the corrosion warranty in some cases?
 

MelsRegal

Full Member
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Buick Ownership
Regal GS 2017
GM would have to prove that the undercoating caused the body panel in question to have corroded, seems like a impossible situation to occur.
 

mike69440

Well-known member
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Buick Ownership
2018 TourX Essence
GM would have to prove that the undercoating caused the body panel in question to have corroded, seems like a impossible situation to occur.
Unless undercoating de-laminates and allows corrosives to be trapped.
 
Last edited:
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