Buick Cascada 2016–2019 — technical service bulletin
Bulletin 17NA149 · NHTSA communication 10183137 · issued Oct 13, 2020
Technical service bulletin
communication type
Wheels
component
2016–2019
model years
4
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of water sloshing in quarter panel area when accelerating or stopping and/or long period of water draining from rear wheel well after vehicle is parked.
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.