NHTSA ID Number: 11028668
Manufacturer Communication Number: 26-EM-005H TSB
TSB/Document Date: 2026-02-10
Summary
Some Santa Fe (TMA) vehicles may have DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Electronic Control Unit (ECU), resulting in an illuminated Check Engine warning lamp. Follow the procedure in this TSB to replace the Integrated Thermal Management (ITM) module and update both the Engine Control Module (ECM) and Transmission Control Module (TCM) if applicable. Follow the flowchart in this TSB to update the appropriate modules.
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TSB/Document ID: 26-EM-005H TSB
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-05
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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TMa F/L 2.5GDI TCU 39110-2S059
TMa F/L 2.5GDI TCU 39110-2S060
TMa F/L 2.5GDI TCU 39110-2S092
TMa F/L 2.5GDI TCU 39110-2S094
2300
TMa F/L 2.5GDI TCU 39110-2S274
TMa F/L 2.5GDI TCU 39110-2S276
TMa F/L 2.5GDI TCU 39110-2S298
1063
TMa F/L 2.5GDI TCU 39110-2S067
TMa F/L 2.5GDI TCU 39110-2S068
TMa F/L 2.5GDI TCU 39110-2S093
TMa F/L 2.5GDI TCU 39110-2S095
3301
TMa F/L 2.5GDI TCU 39110-2S275
TMa F/L 2.5GDI TCU 39110-2S277
TMa F/L 2.5GDI TCU 39110-2S299
1125
TSB #: 26-EM-005H
TMa PE 2.5T 8DCT 954A1-2N250
2250
Page 16 of 20
INTEGRATED THERMAL MANAGEMENT (ITM) REPLACEMENT & ECM/TCU
SOFTWARE UPDATE – DTCS P218100, P2181F0, P2181F1
SUBJECT:
ROM ID Information: GDI Event 1282
Model
MY
System
ECU
Part Number
39110-2S059
2WD
39110-2S060
2021
39110-2S067
4WD
39110-2S068
Latest
TACVN5GMH3XXXL8A
TACVN5GSH3XXXL8A
TACVN5GMI3XXXL8A
TACVN5GSI3XXXL8A
TADVN5GMH3XXXJ1A
TADVN5GMH3XXXJ1B
TADVN5GMH3XXXL8C
39110-2S094
TADVN5GSH3XXXJ1A
TADVN5GSH3XXXJ1B
TADVN5GSH3XXXL8C
39110-2S274
ECU
39110-2S276
2022
TADVN5GMH3XXXL5A
TADVN5GMH3XXXL5B
TADVN5GMH3XXXL8A
TADVN5GMH3XXXL8B
TADVN5GSH3XXXL5A
TADVN5GSH3XXXL5B
TADVN5GSH3XXXL8A
TADVN5GSH3XXXL8B
TADVN5GMH3XXXL8C
TADVN5GSH3XXXL8C
39110-2S093
TADVN5GMH3XXXJ1A
TADVN5GMH3XXXJ1B
TADVN5GMH3XXXL8C
39110-2S095
TADVN5GSH3XXXJ1A
TADVN5GSH3XXXJ1B
TADVN5GSH3XXXL8C
4WD
39110-2S275
39110-2S277
2WD
39110-2S298
4WD
39110-2S299
2023
TSB #: 26-EM-005H
Current
TACVN5GMH3XXXG2C
TACVN5GMH3XXXH0A
TACVN5GMH3XXXH0B
TACVN5GMH3XXXH0C
TACVN5GSH3XXXG2C
TACVN5GSH3XXXH0A
TACVN5GSH3XXXH0B
TACVN5GSH3XXXH0C
TACVN5GMI3XXXG2C
TACVN5GMI3XXXH0A
TACVN5GMI3XXXH0B
TACVN5GMI3XXXH0C
TACVN5GSI3XXXG2C
TACVN5GSI3XXXH0A
TACVN5GSI3XXXH0B
TACVN5GSI3XXXH0C
39110-2S092
2WD
Santa Fe
(TMA)
ROM ID
TADVN5GMH3XXXL5A
TADVN5GMH3XXXL5B
TADVN5GMH3XXXL8A
TADVN5GMH3XXXL8B
TADVN5GSH3XXXL5A
TADVN5GSH3XXXL5B
TADVN5GSH3XXXL8A
TADVN5GSH3XXXL8B
TAEVN5GMH3XXXM0A
TAEVN5GMH3XXXM1A
TAEVN5GMH3XXXM1B
TAEVN5GMI3XXXM0A
TAEVN5GMI3XXXM1A
TAEVN5GMI3XXXM1B
TADVN5GMH3XXXL8C
TADVN5GSH3XXXL8C
TAEVN5GMH3XXXM1C
TAEVN5GMI3XXXM1C
Page 17 of 20
INTEGRATED THERMAL MANAGEMENT (ITM) REPLACEMENT & ECM/TCU
SOFTWARE UPDATE – DTCS P218100, P2181F0, P2181F1
SUBJECT:
ROM ID Information: T-GDI Event 1283
Model
MY
System
ECU
Part Number
ROM ID
Current
Latest
39101-2STN0
TMBWN5TMD3XXXG2C
TMBWN5TMD3XXXG2D
TMBWN5TMD3XXXG2E
TMBWN5TMD3XXXG2F
39101-2STN5
TMBWN5TMD3TXXG2C
TMBWN5TMD3TXXG2D
TMBWN5TMD3TXXG2E
TMBWN5TMD3TXXG2F
39101-2STN6
TMDWN5TMD3TXXJ1A
TMDWN5TMD3TXXJ1C
2022
39101-2STN7
TMDWN5TMD3TXXJ1B
TMDWN5TMD3TXXJ1C
2023
39101-2STN8
TMEWN5TMD3TXXM0B
TMEWN5TMD3TXXM0C
TMEWN5TMD3TXXM0D
2021
Santa Fe
(TMA)
2022
TSB #: 26-EM-005H
ECU
Page 18 of 20
SUBJECT:
INTEGRATED THERMAL MANAGEMENT (ITM) REPLACEMENT & ECM/TCU
SOFTWARE UPDATE – DTCS P218100, P2181F0, P2181F1
ROM ID Information: GDI Event 1063
Model
MY
System
ECU
Part Number
ROM ID
Current
Latest
STM2G25NH1
STM2G25NH4
STM4G25NH1
STM4G25NH4
39110-2S092
STM2G25NH1
STM2G25NH4
39110-2S094
STM2G25NH1
STM2G25NH4
39110-2S093
STM4G25NH1
STM4G25NH4
39110-2S095
STM4G25NH1
STM4G25NH4
39110-2S274
STM2G25NH2
STM2G25NH3
STM2G25NH4
39110-2S276
STM2G25NH2
STM2G25NH3
STM2G25NH4
39110-2S275
STM4G25NH2
STM4G25NH3
STM4G25NH4
39110-2S277
STM4G25NH2
STM4G25NH3
STM4G25NH4
2WD
39110-2S298
STM2G25NH3
STM2G25NH4
4WD
39110-2S299
STM4G25NH3
STM4G25NH4
39110-2S059
2WD
39110-2S060
2021
39110-2S067
4WD
39110-2S068
2WD
2022
Santa Fe
(TMA)
4WD
TCU
2WD
2022
4WD
2023
TSB #: 26-EM-005H
Page 19 of 20
SUBJECT:
INTEGRATED THERMAL MANAGEMENT (ITM) REPLACEMENT & ECM/TCU
SOFTWARE UPDATE – DTCS P218100, P2181F0, P2181F1
ROM ID Information: T-GDI Event 1125
Model
MY
System
ECU
Part Number
ROM ID
Current
Latest
VTMPT25XXX720NS0
VTMPT25XXX720NS1
VTMPT25XXX730NS2
VTMPT25XXX800NS3
VTMPT25XXX800NS4
Santa Fe
(TMA)
2021-2023
TCU
954A1-2N250
VTMPT25XXX920NSC
VTMPT25XXX800NS5
VTMPT25XXX832NS6
VTMPT25XXX900NS8
VTMPT25XXX900NSA
VTMPT25XXX920NSB
TSB #: 26-EM-005H
Page 20 of 20
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