Service bulletin 21-406

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

It has been determined that Polycarbonate skylights used on Alpha Flex and Alpha Ply roof systems may crack. CLOSING NOTICE - This Campaign ends October 31, 2021. All repairs and claims for this campaign must be submitted on or before October 31st to be considered for reimbursement. Further delay in inspection for defective skylights and necessary correction could result in extensive water damage. Lack of participation in the campaign will result in loss of warranty reimbursement for related damage.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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