Check a VIN

March 13, 2023 Service bulletin

This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for...

Hyundai technical service bulletin 23-01-006H for 2021 Hyundai Elantra.

Bulletin number
23-01-006H
Component
Electrical system: software
Summary
This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). This update to the damper clutch logic is to address a potential engine stall condition immediately following Forward Collision Avoidance (FCA) activation under specific operating conditions at low engine RPM and low vehicle speeds. In the event a low-speed stall does occur, the engine can immediately be restarted.

Owners of these vehicles have filed 31 complaints in the electrical category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Hyundai Elantra?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history