Toyota Sienna 2011–2014 — technical service bulletin
Bulletin E0N_Dealer Lette · NHTSA communication 10132693 · issued Oct 23, 2017
Technical service bulletin
communication type
Equipment
component
2011–2014
model years
4
vehicle entries
Official summary
Dealer Letter: October 23, 2017 A watermark has been added to the Dealer Letter to indicate that E0N expired on June 30, 2017.
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.