Chevrolet Malibu 2020–2022 — technical service bulletin
Bulletin 21-NA-186 · NHTSA communication 10219289 · issued Aug 26, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2022
model years
3
vehicle entries
Official summary
This service bulletin provides repair information to correct a customer concern of Service Engine Soon Illuminated in DIC and/or a Malfunctioning Fuel Gauge with DTC U0076/U18A2/P1001/P1434 or Other Message Counter Incorrect Codes Set.
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.