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Hyundai TSB #23-HC-002H
2021 Hyundai Sonata Hybrid
TSB Document:
Affected Component: POWER TRAIN
- Summary
- This bulletin provides information related to the Engine Control Module (ECM) software update and coolant replacement for 2020-2023MY Sonata Hybrid (DN8 HEV) vehicles to improve the coolant filling mode by discharging air bubbles.
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