NHTSA ID Number: 11029939
Manufacturer Communication Number: 26-01-013H-1 TSB
TSB/Document Date: 2026-03-11
Summary
Certain Santa Fe (TMA), Santa Fe Sport (AN), Sonata (LFA), and Tucson (TL) vehicles equipped with Theta II engines may exhibit elevated engine-out emissions. This bulletin provides instructions for updating the Engine Control Module (ECM) to address this condition.
Start the engine to confirm proper operation of
the vehicle.
8.
Proceed to Emissions Label Application (for
All Vehicles) on page 10.
NOTICE
If the ECU update fails in Auto Mode, perform the update in Manual Mode using the Manual
Mode Passwords below.
Manual Mode Passwords:
Model
Santa Fe (TMA)
Santa Fe Sport
(AN)
Event
1267
1373
1329
Sonata (LFA)
1330
TSB #: 26-01-013H-1
ECM Menu
Password
TMa PE 2.4GDI ECU 39171-2GTC0/D0
2071
TMa PE 2.4GDI ECU 39171-2GTC5/D5
5217
TMa PE 2.4GDI ECU 39173-2GTE0/F0
9372
TMa PE 2.4GDI ECU 39173-2GTG0/H0
2869
TMa PE 2.4GDI ECU 39171-2GTC1/D1
1993
TMa PE 2.4GDI ECU 39171-2GTC6/D6
9322
TMa PE 2.4GDI ECU 39173-2GTE1/F1
3838
TMa PE 2.4GDI ECU 39173-2GTG1/H1
4322
DMa(AN) PE 2.4 GDI ECU 39100-2GKP0 (2WD)
0211
DMa(AN) PE 2.4 GDI ECU 39100-2GKP5 (4WD)
2523
DMa(AN) PE 2.4 GDI ECU 39100-2GKR0 (2WD)
3121
DMa(AN) PE 2.4 GDI ECU 39100-2GKR5 (4WD)
6162
DMa(AN) PE 2.4 GDI ECU 39100-2GKP1 (2WD)
7257
DMa(AN) PE 2.4 GDI ECU 39100-2GKP6 (4WD)
7606
DMa(AN) PE 2.4 GDI ECU 39100-2GKR1 (2WD)
8149
DMa(AN) PE 2.4 GDI ECU 39100-2GKR6 (4WD)
9552
LFa PE 2.4GDI ECU 39112-2GGK7
2127
LFa PE 2.4GDI ECU 39112-2GGK2
2122
LFa 2.4GDI ECU 39112-2GGJ5 (18MY)
6427
LFa 2.4GDI ECU 39112-2GGJ0 (18MY)
3028
LFa 2.4GDI ECU 39112-2GGK5 (18MY)
9043
LFa 2.4GDI ECU 39112-2GGK0 (18MY)
3664
Page 8 of 21
SUBJECT: ECU SOFTWARE UPDATE FOR THETA II EMISSIONS IMPROVEMENT (SERVICE CAMPAIGN 9C2)
Manual Mode Passwords (continued):
Model
Event
1367
Sonata (LFA)
1372
1383
1269
Tucson (TL)
1331
TSB #: 26-01-013H-1
ECM Menu
Password
LFa 2.4 GDI ECU 39111-2GGK7
4556
LFa 2.4 GDI ECU 39111-2GGK2
9858
LFa 2.4 GDI ECU 39111-2GGL7
7677
LFa 2.4 GDI ECU 39111-2GGL2
2619
LFa 2.4 GDI ECU 39111-2GGK8
5279
LFa 2.4 GDI ECU 39111-2GGK3
2587
LFa 2.4 GDI ECU 39111-2GGL8
5996
LFa 2.4 GDI ECU 39111-2GGL3
3911
LFa 2.4 GDI ECU 39111-2GGK9
6534
LFa 2.4 GDI ECU 39111-2GGK4
2537
LFa 2.4 GDI ECU 39111-2GGL9
0605
LFa 2.4 GDI ECU 39111-2GGL4
8813
LFa 2.4 GDI ECU 39111-2GGK6
6427
LFa 2.4 GDI ECU 39111-2GGK1
3028
LFa 2.4 GDI ECU 39111-2GGL6
9043
LFa 2.4 GDI ECU 39111-2GGL1
3664
LFa 2.4 ECU 39111-2GGK5
5451
LFa 2.4 ECU 39111-2GGK0
7227
LFa 2.4 ECU 39111-2GGL5
8945
LFa 2.4 ECU 39111-2GGL0
9648
TL PE 2.4GDI ECU 39171-2GPA0/B0
6161
TL PE 2.4GDI ECU 39171-2GPG0
6497
TL PE 2.4GDI ECU 39173-2GPA0/B0
3904
TL PE 2.4GDI ECU 39173-2GPC0
4242
TL PE 2.4GDI ECU 39171-2GPA1/B1
7890
TL PE 2.4GDI ECU 39171-2GPG1
8672
TL PE 2.4GDI ECU 39171-2GPB2
2546
TL PE 2.4GDI ECU 39171-2GPG2
1546
TL 2.4GDI ECU 39171-2GAA0 (18MY)
8932
TL 2.4GDI ECU 39171-2GAB0 (18MY)
4989
Page 9 of 21
SUBJECT: ECU SOFTWARE UPDATE FOR THETA II EMISSIONS IMPROVEMENT (SERVICE CAMPAIGN 9C2)
Emissions Label Application (for All Vehicles)
1.
Fill in the Dealer Code and Date on the
emissions label, and apply adjacent to the
existing label, on the underside of the hood, as
shown.
Be sure to clean the mounting surface to
ensure proper label adhesion.
2.
DIGITAL
DOCUMENTATION
Using the STUI camera function, take a
photo of the emissions label attached to
the vehicle.
Upload the photo to STUI.
NOTE: If the STUI camera function is
NOT used, write the last 6 digits of the
VIN and the date of repair on a piece of
paper to include in the photo.
3.
Proceed to the next section and complete the
Vehicle Emission Recall - Proof of
Correction Card for the states listed.
If NOT applicable to your state, the service
procedure is complete.
TSB #: 26-01-013H-1
Page 10 of 21
SUBJECT: ECU SOFTWARE UPDATE FOR THETA II EMISSIONS IMPROVEMENT (SERVICE CAMPAIGN 9C2)
Vehicle Emission Recall – Proof of Correction Card (for Vehicles Registered in Certain States)
For vehicles registered in California, Colorado, Connecticut, Delaware, Maine, Maryland,
Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, and
Washington:
VEHICLE EMISSION RECALL - PROOF OF CORRECTION CARD
A Vehicle Emission Recall - Proof of Correction card must be filled out for all vehicles registered in
California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New
York, Oregon, Pennsylvania, Rhode Island, Vermont, and Washington. Residents of these states,
who own an affected vehicle, will be required to possess a Vehicle Emission Recall - Proof of
Correction card as evidence of voluntary service campaign completion, when they apply for vehicle
registration renewal.
WHAT TO DO WITH THE CARD:
The Vehicle Emission Recall - Proof of Correction card must be completed by the Dealership’s
Service Manager using a permanent ink pen. A fine point pen is recommended. When filling in the
information, copy the information directly from the vehicle, not from the repair order.
ALL INFORMATION MUST BE PRINTED AND NEAT.
The copy of the card shown below indicates the areas to be filled in. Each area must be filled in.
The completely filled out Vehicle Emission Recall - Proof of Correction card should be given to
the owner of the vehicle upon completion of the Campaign.
1.
2.
3.
4.
5.
6.
Enter Vehicle’s License Number
Enter “Hyundai
”
Enter Model Year
Enter Model (e.g. Tucson)
Enter the vehicle’s VIN
Enter Campaign Number: 9C2
2
1
7. Enter Dealership Name
8. Enter Dealership’s Address
NOTE: Enter the physical address, not the
mailing address (not a P.O. Box)
9. Enter Date of Repair
10. Service Manager Sign Here
5
4
3
6
2
8
7
9
TSB #: 26-01-013H-1
10
Page 11 of 21
SUBJECT: ECU SOFTWARE UPDATE FOR THETA II EMISSIONS IMPROVEMENT (SERVICE CAMPAIGN 9C2)
ROM ID Information:
Model
Event
IMMO
O
2015MY
Sonata
(LFA)
X
ECU
Part Number
Current
Latest
39111-2GGK5
LFAFNC4ER84A
LFAFNC4ER86A
LFAFNC4ER86B
LFAFNC4ER86C
LFAFNC4ER87A
LFAFNC4ER87B
LFAFNC4ER88A
LFAFNC4ERA51
LFAFNC4ERA53
LFAFNC4ERC0A
LFAFNC4ERC0K
LFAFNC4ERC0L
LFAFNC4ERC0M
LFAFNC4ERCXA
39111-2GGK0
LFAFNC4EM84A
LFAFNC4EM86A
LFAFNC4EM86B
LFAFNC4EM86C
LFAFNC4EM87A
LFAFNC4EM87B
LFAFNC4EM88A
LFAFNC4EMA51
LFAFNC4ERA52
LFAFNC4EMA53
LFAFNC4ERA57
LFAFNC4ERA58
LFAFNC4EMC0A
LFAFNC4EMC0K
LFAFNC4EMC0L
LFAFNC4EMC0M
LFAFNC4EMCXA
39111-2GGL5
LFAFNS4ER84A
LFAFNS4ER86A
LFAFNS4ER86B
LFAFNS4ER86C
LFAFNS4ER87A
LFAFNS4ER87B
LFAFNS4ER88A
LFAFNS4ERA51
LFAFNS4ERA52
LFAFNS4ERA53
LFAFNS4ERA57
LFAFNS4ERA58
LFAFNS4ERC0A
LFAFNS4ERC0K
LFAFNS4ERC0L
LFAFNS4ERC0M
LFAFNS4ERCXA
1383
O
TSB #: 26-01-013H-1
ROM ID
Page 12 of 21
SUBJECT: ECU SOFTWARE UPDATE FOR THETA II EMISSIONS IMPROVEMENT (SERVICE CAMPAIGN 9C2)
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 26-01-013H-1 TSB
Replacement Service Bulletin Number:
MFR Communication Date: 2026-03-04
MFR Internal Campaign ID/Software Version: 9C2
Communication Type: Service Campaign
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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