Toyota Sienna 2011–2018 — technical service bulletin
Bulletin T-TT-0497-18 · NHTSA communication 10141582 · issued May 14, 2018
Technical service bulletin
communication type
Seats
component
2011–2018
model years
8
vehicle entries
Official summary
TT: Some vehicles may experience a condition in which the 2nd row seat, with center seat, exhibits a chirp/squeak noise from the rear seat latches (floor area). This condition is present while driving over rough or bumpy roads. Upon further inspection, after removal of the LH 2nd row seat, the rear inboard and outboard strikers may show signs of the coating peeling off as shown in Fig.2 and Fig.3.
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.