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Service bulletin 23-01-010H

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10233483
Published by NHTSA2023-04-03
Manufacturer's number23-01-010H
Manufacturer's date2023-03-06
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING

NHTSA's summary

Certain 2015-19MY Sonata (LFA) vehicles equipped with 2.0L Turbo GDI engines need the Electronic Control Module (ECM) software updated to revise the fuel injection control logic to compensate for oxygen sensor aging and control tailpipe emissions within applicable standards.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Turbocharger or supercharger

Vehicles listed
HYUNDAI SONATA2015, 2016, 2017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
20-01-004H-32021-01-09. Service bulletin. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
5NP-X6N5X-112017-11-14. Service bulletin. Some Sonata 2.0T (LFa) vehicles may experience deterioration of the air inlet hose near the turbo inlet. This may cause an air rushing noise and may cause potential damage to the turbo charger.
TSB-14-01-0452015-04-01. Service bulletin. HYUNDAI: INFORMATION PROVIDED FOR THE TURBOCHARGER INTERCOOLER INSPECTION PROCEDURE FOR RESTRICTIONS AND REPLACEMENT. MODEL 2015 SONATA. *PE