P0742 on the 2009 Hyundai Sonata
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.
Nobody has written a description of this code yet.
| TSB-09-AT-018 | 2010-06-11. Service bulletin. HYUNDAI: ATA SOLENOID DIAGNOSTIC TROUBLE CODES P0740, P0741, P0742, P0743, P0746, P0748, P0750, P0755, P0760, P0765, P0770. INCORRECT OPERATION OF THE TRANSAXLE SOLENOIDS MAY RESULT IN THE FOLLOWING SYMPTOMS-CHECK ENGINE LIGHT ILLUMINATED; TRANSAXLE HELD IN 3RD GEAR FAIL SAFE. *PE |
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1 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.