Chevrolet Malibu 2020–2025 — technical service bulletin
Bulletin 21-NA-186 · NHTSA communication 11013026 · issued Jan 7, 2025
Technical service bulletin
communication type
Electrical System
component
2020–2025
model years
6
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.