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Service bulletins for the 2012 Hyundai Sonata

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.

230 on file from NHTSA, as of 2026-10-19.

About P0442 on the 2012 Hyundai Sonata: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P0442 are shown. Show all

Bulletins, newest first
21-FL-002H2021-07-09. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2011 2015 Sonata Hybrid vehicles (YF HEV) may experience a check engine light illumination with an Evaporative System (EVAP) leakage related DTC P0442 Small Leak, P0455 Large Leak, or P0456 Very Small Leak stored. Salt particulate deposits can form inside the Natural Vacuum Leak Detection (NVLD) sensor, which may cause intermittent operation, prompting the check engine light illumination and DTC P0442, P0455, or P0456.
21-01-035H2021-07-09. Service bulletin. ENGINE AND ENGINE COOLING. Certain 2011 2015 Sonata Hybrid vehicles (YF HEV) may experience check engine light illumination with Evaporative System (EVAP) leakage related DTC P0442 Small Leak, P0455 Large Leak or P0456 Very Small Leak stored. These conditions primarily occur in the California coastal areas that are subject to marine layer cloud cover. Salt particulate deposit can form inside the Natural Vacuum Leak Detection (NVLD) sensor which may cause intermittent operation prompting the DTC P0442, P0455 or P0456 and check engine light illumination. This bulletin provides the procedure to install a new Air Filter Kit with an updated filter to help prevent entry of the salt particulates. In addition, replace NVLD sensor if DTC P0442, P0455 or P0456 is stored in the Engine Control Module (ECM).
5NPU7G9E022017-09-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some Veloster (FS) and Sonata Hybrid (YF HEV) vehicles may experience a check engine warning light ON with any of the following DTCs found stored: ? P0442 - Evaporative System (EVAP) - Small Leak ? P0455 - Evaporative System (EVAP) - Large Leak ? P0456 - Evaporative System (EVAP) - Very Small Leak This bulletin provides the service procedure to inspect vehicles for a potential crack found at the evaporative canister insert nuts: ? If crack is not found at canister insert nut: Bracket Kit (includes bracket bolts & rubber washers) and Bolts (and a nut for FS) as listed in the Part Information table (page 2) are to be installed. ? If crack is confirmed at the canister insert nut: Replacement Canister Kit, Bolts (and a Nut for FS) as listed in the Parts Information table (pages 2-3) are to be installed.
5NP-Z2J3V-042017-08-10. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. Some Veloster (FS) and Sonata Hybrid (YF HEV) vehicles may experience a check engine warning light ON with any of the following DTCs found stored: ? P0442 - Evaporative System (EVAP) - Small Leak ? P0455 - Evaporative System (EVAP) - Large Leak ? P0456 - Evaporative System (EVAP) - Very Small Leak

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.