Buick Encore GX 2021–2022 — technical service bulletin
Bulletin 21NA215 · NHTSA communication 10214231 · issued Feb 3, 2022
Technical service bulletin
communication type
Back Over Prevention
component
2021–2022
model years
4
vehicle entries
Official summary
This technical bulletin provides a procedure to correct a customer concern of a Pop Noise Heard on Heavy Acceleration Only.
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.