Buick Encore GX 2020–2023 — technical service bulletin
Bulletin 23-NA-058 · NHTSA communication 10242980 · issued Sep 7, 2023
Technical service bulletin
communication type
Electrical System
component
2020–2023
model years
7
vehicle entries
Official summary
This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.
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.