NHTSA ID Number: 10232197
Manufacturer Communication Number: 23-EE-003H
TSB/Document Date: 2023-03-02
Summary
This bulletin provides information related to the ECU software update for improvement of: - ISG operation in relation to the battery SOH (State Of Health) condition will be removed - ISG engagement with satisfied battery SOC (State Of Charge) will remain
GROUP
NUMBER
ENGINE ELECTRICAL
DATE
Technical Service Bulletin
SUBJECT:
23-EE-003H
MODEL(S)
FEBRUARY 2023
SANTA FE (TMa)
PALISADE (LX2)
ECU UPDATE - ISG ACTIVE CONDITION IMPROVEMENT
Description: This bulletin provides information related to the ECU software update for improvement
of:
- ISG operation in relation to the battery SOH (State Of Health) condition will be removed
- ISG engagement with satisfied battery SOC (State Of Charge) will remain
Applicable Vehicles:
■ 2019-2020MY Santa Fe (TMa) equipped with 2.0T-GDI, 2.4 GDI, and 8-speed Automatic
Transmissions 2WD, AWD (VIN starts with “5NM”)
■ 2020-2022MY Palisade (LX2) equipped with 3.8 GDI engines and 8-Speed Automatic
Transmissions
GDS Information:
Event #
Description
LX2
ECM
UPGRADE
–
ISG
ACTIVE
CONDITION IMPROVEMENT (DELETE SOH CONDITION)
860
TMa ECM UPGRADE – ISG ACTIVE CONDITION IMPROVEMENT (DELETE SOH CONDITION)
866
NOTES:
• Refer to TSB 15-GI-001 for additional tablet-based Mobile GDS ECU update information.
• After the ECU Upgrade process shows 100% complete, cycle the ignition key to OFF for at
least 30 seconds to reset the control unit. This step is important for establishing normal
powertrain communication and to prevent system errors.
• Clear DTC(s) present after the ECU update.
• Start engine to confirm proper operation of the vehicle.
!
WARNING
GDS Vehicle Battery Voltage Warning:
If voltage is below 12 volts as per the GDS warning, then
select Back and run the engine at least 15 minutes to
reach an adequate battery state of charge to prevent ECU
Update failure. Cycle the ignition OFF/ON before retrying
ECU update again.
Warranty Information:
VEHICLE
OP CODE
OP NAME
Palisade (LX2) 39122F01 ECU UPGRADE
Santa Fe (TMa) 39122F01 ECU UPGRADE
NOTE: Normal warranty applies
OP TIME
0.3 M/H
0.3 M/H
CAUSAL PART
39122-3LFN0
39161-2GTD0 (2.0T)
39171-2GTC5 (2.4)
NATURE
I3T
I3T
CAUSE
ZZ3
ZZ3
NOTICE
You must initially perform all GDS ECU Updates in Auto Mode.
If the ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode to recover.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
ECU UPDATE-ISG ACTIVE CONDITION IMPROVEMENT
SUBJECT:
ROM ID Information Table:
• Verify the ECM ROM ID before updating the software. Refer to the table below.
• IMMO (O) = Start Stop Button
• NON IMMO (X) = Key Start
#860
VEH
TM
IMMO
MY
ECU P/N
8AT
O
20MY
39122-3LFN0
8AT
X
20MY
39132-3LFN0
8AT
O
21MY
39122-3LFN1
8AT
X
21MY
39132-3LFN1
8AT
O
22MY
39122-3LFN2
8AT
X
22MY
39132-3LFN2
Palisade
(LX2)
3.8 GDI
OLD
LXLN8GMS_J0A
LXLN8GMS_K0A
LXLN8GSS_J0A
LXLN8GSS_K0A
LXMN8GMS_K0B
LXMN8GMS_K0C
LXMN8GMS_K0D
LXMN8GMS_K0E
LXMN8GMS_K0F
LXMN8GMS_N2A
LXMN8GSS_K0B
LXMN8GSS_K0C
LXMN8GSS_K0D
LXMN8GSS_K0E
LXMN8GSS_K0F
LXMN8GSS_N2A
LXNN8GMS_S1A
LXNN8GMS_S1B
LXNN8GSS_S1A
LXNN8GSS_S1B
#866
VEH/ENGINE
TM
OPT
ECU P/N
2WD (19MY) 39160-2GTC0
Santa Fe
2.0 T-GDI
(TMa)
8AT
AWD (19MY) 39160-2GTD0
TSB #: 23-EE-003H
ROM ID
OLD
NEW
LXLN8GMS_K0P
LXLN8GSS_K0P
LXMN8GMS_N2P
LXMN8GSS_N2P
LXNN8GMS_S1P
LXNN8GSS_S1P
ROM ID
TMAJNC08RE5A
TMAJNC08RE5B
TMAJNC08RE5C
TMAJNC08RG1A
TMAJNC08RG1B
TMAJNC08RG1C
TMAJNC08RG1D
TMAJNC08RE5A
TMAJNC08RE5B
TMAJNC08RE5C
TMAJNC08RG1A
TMAJNC08RG1B
TMAJNC08RG1C
TMAJNC08RG1D
NEW
TMAJNC08RG1E
TMAJNC08RG1E
Page 2 of 6
SUBJECT:
SUBJECT:
ECU UPDATE- ISG ACTIVE CONDITION IMPROVEMENT
2WD (19MY) 39162-2GTC0
AWD (19MY) 39162-2GTD0
ULEV 2WD
(19MY)
39170-2GTC0
ULEV AWD
(19MY)
39170-2GTD0
SULEV 2WD
39170-2GTC5
(19MY)
SULEV AWD
39170-2GTD5
(19MY)
TSB #: 23-EE-003H
TMAJNC08ME5A
TMAJNC08ME5B
TMAJNC08ME5C
TMAJNC08MG1A
TMAJNC08MG1B
TMAJNC08MG1C
TMAJNC08MG1D
TMAJNC08ME5A
TMAJNC08ME5B
TMAJNC08ME5C
TMAJNC08MG1A
TMAJNC08MG1B
TMAJNC08MG1C
TMAJNC08MG1D
TMAJNC48SE2A
TMAJNC48SE2B
TMAJNC48SEAC
TMAJNC48SEAD
TMAJNC48SEAE
TMAJNC48SEAF
TMAJNC48SG1A
TMAJNC48SG1B
TMAJNC48SG1C
TMAJNC48SG1D
TMAJNC48SG1E
TMAJNC48SE2A
TMAJNC48SE2B
TMAJNC48SEAC
TMAJNC48SEAD
TMAJNC48SEAE
TMAJNC48SEAF
TMAJNC48SG1A
TMAJNC48SG1B
TMAJNC48SG1C
TMAJNC48SG1D
TMAJNC48SG1E
TMAJNS48SE2A
TMAJNS48SE2B
TMAJNS48SEAC
TMAJNS48SEAD
TMAJNS48SEAE
TMAJNS48SEAF
TMAJNS48SG1A
TMAJNS48SG1B
TMAJNS48SG1C
TMAJNS48SG1D
TMAJNS48SG1E
TMAJNS48SE2A
TMAJNS48SE2B
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TSB/Document ID: 23-EE-003H
Replacement Service Bulletin Number:
MFR Communication Date: 2023-02-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
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MFR Component Subsystem:
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