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March 20, 2023 Service bulletin

This bulletin provides information related to the ECU software update for Sonata Hybrid (DN8 HEV) vehicles...

Hyundai technical service bulletin 23-01-023H for 2023 Hyundai Sonata and 2023 Hyundai Sonata Hybrid.

Bulletin number
23-01-023H
Component
Engine and engine cooling
Summary
This bulletin provides information related to the ECU software update for Sonata Hybrid (DN8 HEV) vehicles to revise the logic for the following DTC : • DTC P00B7 – Engine Coolant Flow Low/Performance

Owners of these vehicles have filed 37 complaints in the engine category.

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