21-01-019H

GROUP
NUMBER
CAMPAIGN
Technical Service Bulletin
SUBJECT:
DATE
21-01-019H
MODEL(S)
March, 2021
Kona Electric
(OS EV)
KONA ELECTRIC(OS EV) VCULDC CONTROL LOGIC IMPROVEMENT
(SERVICE CAMPAIGN T6C)
 IMPORTANT
*** Dealer Stock and Retail Vehicles ***
Dealers must perform this Service Campaign on all affected vehicles prior to customer retail
delivery and whenever an affected vehicle is in the shop for any maintenance or repair.
When a vehicle arrives at the Service Department, access Hyundai Motor America's “Vehicle
Information Screen (VIS)" via WEBDCS to identify open Campaigns.
Description: This bulletin provides information related to the VCULDC(Vehicle Control Unit & Low DCDC Converter) software update for KONA Electric(OS EV) vehicles. This update is also part of the highvoltage battery monitoring logic improvement by optimizing software of each system.
Applicable Vehicles:
 Certain 2019-2021 Kona Electric (OS EV)
GDS Information:
System Selection: VCULDC
Event #
Description
657*
OS EV - VCULDC CONTROL LOGIC IMPROVEMENT
*or any later updated event that comes up.
Warranty Information:
Model
Op. Code
Operation
Kona Electric
00D111R1 VCULDC UPGRADE
(OS EV)
Op. Time
Causal Part
Causal
Code
Nature
Code
0.3 M/H
36601-0E170
I11
ZZ3
Note 1: Submit Claim on Campaign Claim Entry Screen
Note 2: If a part is found in need of replacement while performing this campaign and the affected part
is still under warranty, submit a separate warranty claim using the same Repair Order. If the
affected part is out of warranty, submit a Prior Approval Request for goodwill consideration
prior to performing the work.
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
SUBJECT:
KONA ELECTRIC (OS EV) VCULDC CONTROL LOGIC IMPROVEMENT
(SERVICE CAMPAIGN T6C)
NOTICE
You must initially perform the GDS ECU Update in Auto Mode.
 If the ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode to
recover.
!
WARNING
GDS-M Vehicle Battery Low Voltage Warning:
If voltage is below 12 volts as per the below GDS warning, then select Back and run the vehicle for
at least 20 minutes to ensure an adequate battery state of charge for reliable update results. Turn
ignition back on, and then retry the ECU update again.
Service Procedure
1.
Perform the GDS software update.
(Refer to TSB 15-GI-001 for the detailed tablet-based Mobile GDS ECU update procedures)
2.
Check for Diagnostic Trouble Codes in the ALL menus and erase any DTC.
3.
Confirm normal vehicle operation.
ROM ID TABLE:
VEHICLE
SYSTEM
ROM ID
VCULDC
P/No.
OLD
NEW
EOSEJNM-NS0-D000
EOSEJNM-NS1-D000
EOSEJNM-NS2-D000
Kona (OS EV)
VCULDC
36601-0E170
EOSEKNM-NS3-D000
EOSEKNM-NS4-D000
EOSEKNM-NS8D000
EOSEKNM-NS5-D000
EOSEKNM-NS6-D000
EOSEKNM-NS7-D000
Manual Mode Password:
MENU
PASSWORD
OS EV VCULDC 36601-0E170
0170
TSB #: 21-01-019H
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