# 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.

- Type: Service bulletin
- NHTSA id: 10209116
- Published by NHTSA: 2022\-03\-17
- Manufacturer's number: 21\-406
- Manufacturer's date: 2022\-03\-15
- NHTSA component: STRUCTURE

## NHTSA's summary

Email to owners regarding campaign 21\-406. 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)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209116-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10209116-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame

## Vehicles listed

- 2020 KEYSTONE CARBON
- 2020 to 2021 KEYSTONE COUGAR
- 2020 to 2021 KEYSTONE FUZION
- 2020 to 2021 KEYSTONE IMPACT
- 2020 KEYSTONE RAPTOR

JSON: [/v1/bulletins/10209116](/v1/bulletins/10209116)

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