NHTSA ID Number: 10232201
Manufacturer Communication Number: 23-EV-002H
TSB/Document Date: 2023-03-02
Summary
If you are servicing a 2022-2023 IONIQ 5 AWD vehicle with drivability concerns in ECO Mode follow this bulletin for updating the software of the Vehicle Control Unit (VCU) for improved drivability.
GROUP
NUMBER
EV SYSTEMS
23-EV-002H
DATE
MODEL(S)
MARCH 2023
Technical Service Bulletin
Ioniq 5 Electric
(NE1)
4WD/AWD VCU UPDATE FOR ECO MODE IMPROVEMENT
SUBJECT:
Description:
If you are servicing a 2022-2023 IONIQ 5 AWD vehicle with drivability concerns in ECO Mode follow
this bulletin for updating the software of the Vehicle Control Unit (VCU) for improved drivability.
IMPORTANT: Please see the conditions below before performing this TSB:
•
If Service Campaign T9Q has not been performed it must be performed and this TSB
is not applicable.
•
If Service Campaign T9Q has been previously performed and ECO Mode drivability
condition is verified proceed with this TSB.
•
If Service Campaign T9Q is not applicable for the vehicle and ECO Mode drivability
condition is verified proceed with this TSB.
Applicable Vehicles:
• 2022-2023MY IONIQ 5 Electric (NE1) – All Wheel Drive (AWD/4WD) Model Only
GDS Information:
System
VCU
Event #
935*
Description
NE VCU 4WD IMPROVEMENT
* or select the latest available Event # that displays in GDS.
Warranty Information:
VEHICLE
OP CODE
OP NAME
Ioniq 5
Electric
(NE1)
IONIQVCU
VCU UPDATE
OP TIME CAUSAL PART NATURE
0.5 M/H
39751-1XNN1
I11
CAUSE
ZZ3
NOTE 1: This is related to complaint for the ECO mode issue.
NOTE 2: If campaign T9Q is open against the VIN, please perform repairs first under TSB 23-01-017H (or
latest version) and it will address this issue.
NOTE 3: Submit claim on Campaign Claim Entry screen.
NOTE 4: If a part that is not covered by this TSB needs replacement while performing this TSB, and the
affected part is still under warranty, please submit a separate claim using the same repair order. If the part is
out of warranty, submit a prior approval request for goodwill consideration prior to performing the work.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
SUBJECT:
4WD/AWD VCU UPDATE FOR ECO MODE IMPROVEMENT
Service Procedure:
i
Information
GDS ECU Updates must be performed in Auto Mode.
• If ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode to
recover.
• Turn off ignition for 30 seconds and try Manual Mode recovery.
• If unsuccessful, re-attempt Manual Mode after disconnecting the cables from the 12V battery
terminals and performing cap discharge (connecting bar or heavy wire between
“+” to “-“ cables).
!
WARNING
GDS Vehicle Battery Voltage:
• If the voltage is below 12 volts as per the GDS warning, then select Back and run the
vehicle at least 15 minutes to reach an adequate battery state of charge to prevent an
ECU Update failure. Cycle the ignition OFF/ON before retrying ECU update again.
1. Perform the VCU Update in Auto Mode.
a. Use the Auto Mode ID Check to verify the VCMS ROM ID before updating the software.
b. After the ECU Upgrade process shows 100% complete, cycle the ignition key to OFF for at
least 10 seconds to reset the control unit.
TSB #: 23-EV-002H
Page 2 of 3
SUBJECT:
4WD/AWD VCU UPDATE FOR ECO MODE IMPROVEMENT
SUBJECT:
2. Perform an All Systems Fault Code search and erase the history of the DTC that had incidentally
occurred from the ECU update.
3. Start the vehicle in Ready mode to confirm a proper operation of the vehicle.
ROM ID Table:
VEHICLE SYSTEM
MY
VCU P/No.
22-23MY 39751-1XNN1
IONIQ5
(NE)
4WD
VCU
23MY
39751-1XNN4
ROM ID
OLD
NE1A-N0-S07-V300
NE1A-N0-SB0-V400
NE1A-N0-SB1-V400
NE1A-N0-SB2-V400
NE1A-N0-SB3-V400
NE1A-N0-SD2-V400
NE1A-N0-KB0-V200
NE1A-N0-KB1-V200
NE1A-N0-KB2-V200
NE1A-N0-KB3-V200
NE1A-N0-KD2-V200
NE1A-N2-S17-V300
NEW
NE1A-N0-SB5-V400
NE1A-N0-KB5-V200
Manual Mode Password:
MENU
PASSWORD
1054
1052
NE1 VCU 4WD 39751-1XNN1
NE1 VCU 4WD 39751-1XNN4
Ioniq 5 AWD Additional Continuous Improvements:
•
Added battery conditioning
•
EPB (Electronic Parking Brake) auto engagement when shift into Park/auto
disengagement shift out of Park while pressing brake pedal
•
DTE (Distance to Empty) strategy
•
Snow road surface performance
•
Air conditioning performance during AC slow charging
•
Enhance i-Pedal mode operation
•
Enhance charging sequence
TSB #: 23-EV-002H
Page 3 of 3
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TSB/Document ID: 23-EV-002H
Replacement Service Bulletin Number:
MFR Communication Date: 2023-02-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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