U18A2 on the 2023 Chevrolet Malibu
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 21-NA-186 | 2025-01-23. Service bulletin. 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. |
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| 21-NA-186 | 2024-03-06. Service bulletin. 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. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.