Buick Regal 2018–2020 — technical service bulletin
Bulletin PIC6418A · NHTSA communication 10187188 · issued Dec 16, 2020
Technical service bulletin
communication type
Equipment
component
2018–2020
model years
10
vehicle entries
Official summary
This Preliminary information communicates steps to perform to determine if the concern relates to a concern that is under engineering investigation.
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.