SERVICE ACTION: HCU/LDC LOGIC IMPROVEMENT FOR P-DTC (SA484)
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Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SA484 Niro HEV/PHEV (DE HEV/PHEV) September 2021
The KDS will check the server for recently
uploaded Events and then automatically
download Upgrade Event #563.
Select the ‘HCULDC’ system under the System
selection menu.
Touch ID Check (D) and confirm that the latest
update is available.
Select Upgrade Event #563 and select Upgrade
to continue.
The ECU upgrade will begin and the progress
of the upgrade will appear on the bar graph.
Upgrade part (1/2) (E) will download the
upgrade event to the VCI-II. Upgrade part (2/2)
(F) will upgrade the ECU.
KDS screenshot shown above is for
demonstration purposes only. Events shown in
screenshot are not applicable to this bulletin.
The vehicle must be identified in
Vehicle Selection to download an
Event for that vehicle.
Do NOT attempt to perform a Manual
Mode upgrade UNLESS Auto Mode
fails. Always follow the instructions
given on the KDS in either Auto or
Manual mode.
Do not touch the system buttons (like
‘Back’, ‘Home’, ‘etc.’) while
performing ECU Upgrade.
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