Toyota Sienna 2015–2017 — technical service bulletin
Bulletin T-TT-0457-17 · NHTSA communication 10132485 · issued Sep 22, 2017
Technical service bulletin
communication type
Structure
component
2015–2017
model years
3
vehicle entries
Official summary
TT: Some 2015-2017 MY Sienna vehicles? front door glass run could be pulling out of the upper B-pillar corner while operating the window.
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.