Winnebago 221B 1970–2023 — technical service bulletin
Bulletin 7SB005-23-01A · NHTSA communication 10226724 · issued Sep 19, 2022
Technical service bulletin
communication type
Structure
component
1970–2023
model years
60
vehicle entries
Official summary
Service Bulletin sent to all Winnebago dealers. Bulletin advises of a manufacturing change to the shower surround sealant process for all units.
Vehicles covered
- 2002 Winnebago 221B
- 2002 Winnebago 222FD
- 2002 Winnebago 222HD
- 2002 Winnebago 222QD
- 2015 Winnebago 24J View
- 2016 Winnebago 31BE
- 1990 Winnebago 320RB
- 1991 Winnebago 320RB
- 1990 Winnebago 321RB
- 1991 Winnebago 321RB
- 1990 Winnebago 321RG
- 1991 Winnebago 321RG
- 1990 Winnebago 321RL
- 1991 Winnebago 321RL
- 2012 Winnebago 40U
- 1992 Winnebago 422RG
- 1992 Winnebago 424RC
- 1992 Winnebago 427RC
- 1992 Winnebago 427RQ
- 1992 Winnebago 427RT
- 1992 Winnebago 522RG
- 1992 Winnebago 524RC
- 1992 Winnebago 527RC
- 1992 Winnebago 527RQ
- 2006 Winnebago Access
- 2007 Winnebago Access
- 2008 Winnebago Access
- 2009 Winnebago Access
- 2010 Winnebago Access
- 2011 Winnebago Access
- 2012 Winnebago Access
- 2013 Winnebago Access
- 2014 Winnebago Access
- 2015 Winnebago Access
- 2016 Winnebago Access
- 2017 Winnebago Access
- 2018 Winnebago Access
- 2009 Winnebago Access Premier
- 2010 Winnebago Access Premier
- 2011 Winnebago Access Premier
- 2012 Winnebago Access Premier
- 1992 Winnebago Adventurer
- 1993 Winnebago Adventurer
- 1994 Winnebago Adventurer
- 1995 Winnebago Adventurer
- 1996 Winnebago Adventurer
- 1997 Winnebago Adventurer
- 1998 Winnebago Adventurer
- 1999 Winnebago Adventurer
- 2000 Winnebago Adventurer
- 2001 Winnebago Adventurer
- 2002 Winnebago Adventurer
- 2003 Winnebago Adventurer
- 2004 Winnebago Adventurer
- 2005 Winnebago Adventurer
- 2006 Winnebago Adventurer
- 2007 Winnebago Adventurer
- 2008 Winnebago Adventurer
- 2009 Winnebago Adventurer
- 2010 Winnebago Adventurer
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.