Chevrolet Blazer 2020–2021 — technical service bulletin
Bulletin PIT5839C · NHTSA communication 10231612 · issued Jan 3, 2023
Technical service bulletin
communication type
Electrical System
component
2020–2021
model years
5
vehicle entries
Official summary
This Preliminary information communicates to GM dealers that the above mentioned concern is software related and that General Motors is working on a solution.
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.