Toyota Sequoia 2012–2013 — technical service bulletin
Bulletin TC-13-011 · NHTSA communication 10052586 · issued Apr 29, 2013
Technical service bulletin
communication type
Engine
component
2012–2013
model years
4
vehicle entries
Official summary
Toyota: see document search button for owner letter. Under certain conditions, the engine control module (ecm) calibration may cause emissions control component, air injection pump, to fail. Models 2012-2013 tundra, sequoia. *pe
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.