Toyota Sienna 2011–2012 — technical service bulletin
Bulletin TSB-0172-12 · NHTSA communication 10047943 · issued Sep 11, 2012
Technical service bulletin
communication type
Air Bags
component
2011–2012
model years
2
vehicle entries
Official summary
Toyota: an intermittent exhibition of srs lamp on with diagnostic trouble code (dtc) b1821 and/or b1826 condition. Improvement to terminal crimping of side air bag to address situation. Model 2011-2012 sienna.
Vehicles covered
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.