HYUNDAI
26-01-039H TSB
Manufacturer communications
- Publication date
- 2026-08-06
- Received by NHTSA
- 2026-08-15
- NHTSA record numbers
- 11036202
Manufacturer summary
Original wording in English
Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revert to the original ROM ID, apply the emissions label under the hood, and provide the vehicle owner with Proof of Correction.
Reported code forms
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