Service bulletins for the 2018 Chevrolet Volt
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
850 on file from NHTSA, as of 2026-10-19.
About P0442 on the 2018 Chevrolet Volt: what the code means, and the bulletins and recalls about the same components.
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By component
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Only bulletins with trouble code: P0442 are shown. Show all
| 21NA124 | 2021-07-19. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. |
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| 21NA124 | 2021-07-06. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set. |
| N192273600-01 | 2020-04-20. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION. Emissions - General Motors has decided to conduct a voluntary emissions recall involving certain 2016-2019 model year Chevrolet Volt vehicles. The evaporative emissions pipe that connects to the inlet of the purge valve may rub against an air conditioning hose connector causing the pipe to chafe. Over time, such chafing can cause a small hole in the evaporative emissions pipe. If this were to occur, the evaporative emission system small leak detected Diagnostic Trouble Code (DTC P0442) would set and the Malfunction Indicator Lamp (check engine light) would illuminate. Inspect the evaporative emissions purge pipe for wear, secure a bumper on the pipe, and if necessary, replace the purge pipe. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.