NHTSA ID Number: 10251293
Manufacturer Communication Number: 24-AT-001H
TSB/Document Date: 2024-03-05
Summary
This bulletin provides the procedure for updating the automatic transmission
TCU and ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when accelerating.
GROUP
NUMBER
AUTOMATIC
TRANSMISSION
DATE
24-AT-001H
MODEL(S)
Technical Service Bulletin
FEBRUARY 2024
SONATA (DN8A)
TUCSON (NX4A)
SANTA CRUZ (NXT)
SANTA FE (TMA)
TCU & ECU UPDATE - ROUGH SHIFT AND HESITATION
IMPROVED LOGIC
SUBJECT:
Description: This bulletin provides the procedure for updating the automatic transmission TCU and
ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when
accelerating.
Applicable Vehicles:
• 2021~22MY Sonata (DN8A) – VIN starts with “5”
• 2022MY Tucson (NX4A) – VIN starts with “5”
• 2022MY Santa Cruz (NXT))
• 2021~22MY Santa Fe (TMA)
GDS Information: (TCU & ECU Update)
System
TCU
ECU
Event #
Description
1060
DN8A 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
1061
NX4A 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
1062
NX4A OB 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
1063
TMA 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
1065
TMA 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (ECU)
(*or use a later available event as listed in the GDS Automatic Transmission (e.g. TCU) Update
screen if one is available.)
Warranty Information:
Model
Op. Code
Operation
Op. Time
Sonata (DN8A)
Tucson (NX4A)
Santa Cruz (NXT)
39110FH7
TCM Update
0.4M/H
39100F43
ECM Update
0.3M/H
Santa Fe (TMA)
Santa Fe (TMA)
Casual Part
Nature
Code
Cause
Code
Refer to Web
LTS for
applicable
part to labor
Op Code
combination
I14
ZZ3
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair
SUBJECT:
:
TCU & ECU UPDATE - ROUGH SHIFT AND HESITATION IMPROVED LOGIC
NOTE 1: Normal warranty applies.
NOTE 2: Submit claim on Claim Entry Screen as “Warranty” type.
NOTE 3: This TSB includes Rrepair validation photos. Op times include VIN, Mileage and photo
capture of the “ECU Update Complete” screen as outlined in the Digital Documentation Policy.
NOTE 4: If a part is found in need of replacement while performing this TSB and the affected part is
still under warranty, submit a separate 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.
Service Procedure:
STUI
This TSB includes Repair validation photos. Refer to the latest Digital Documentation Policy for
requirements.
NOTICE
You must initially perform the GDS TCU Update in Auto Mode.
• If the ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode
to recover.
NOTICE
GDS Vehicle Battery Low Voltage Warning:
If voltage is below 12 volts as per the below GDS warning, then select Back and attach a 12V
battery charger to ensure an adequate battery state of charge for reliable update results. Turn
ignition back on, and then retry the ECU update again.
TSB TTSB #: 24-AT-001H
Page 2 of 6
SUBJECT:
SUBJECT:
1.
TCU & ECU UPDATE – ROUGH SHIFT AND HESITATION IMPROVED LOGIC
Perform the ECU Update in Auto Mode.
Use the Auto Mode ID Check to verify the
ECU ROM ID before updating the software.
i
Information
Refer to TSB 15-GI-001 for additional
tablet-based Mobile GDS ECU update
information.
2.
STUI
Take a screenshot of the “TCU Update
Complete” or “ECU Update Complete”
screen using your particular tablet’s
screenshot save method and upload to
STUI.
3.
After the Update process shows 100% complete, cycle the ignition key to OFF for at least 10
seconds to reset the control unit.
4.
Perform an All Systems Fault Code search and erase the history of the DTC that had
incidentally occurred from the ECU update.
5.
Start the engine and drive the vehicle to confirm proper operation of the transmission.
TSB TTSB #: 24-AT-001H
Page 3 of 6
SUBJECT:
SUBJECT:
:
TCU & ECU UPDATE - ROUGH SHIFT AND HESITATION IMPROVED LOGIC
ROM ID Information Table:
#1060. DN8A 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
Event
#
Model
TCU
Part Number
#1060
Sonata (DN8A)
2.5L GDI
39100-2SDJ0
39100-2SDK0
ROM ID
Old
New
SDN8G25NB2
SDN8G25NB5
#1061. NX4A 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
Event
#
Model
TCU
Part Number
39110-2S163
39110-2S164
39110-2S283
#1061
Tucson (NX4A)
2.5L GDI
39110-2S161
39110-2S162
39110-2S165
39110-2S166
39110-2S181
39110-2S182
39110-2S280
39110-2S281
39110-2S286
39110-2S287
39110-2S292
39110-2S293
ROM ID
Old
SNX4G25X0XSC0SS0
SNX4G25X0XSC1SS2
SNX4G25X0XSC2SS3
SNX4G25X0XSC3SS4
TNX4G25X0XSC0SS0
TNX4G25X0XSC1SS2
TNX4G25X0XSC2SS3
TNX4G25X0XSC3SS4
New
SNX4G25X0XSC3SS6
TNX4G25X0XSC3SS6
#1062. NX4A OB 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
ROM ID
Event
TCU
Model
#
Part Number
Old
#1062
Santa Cruz
(NXT)
2.5L GDI
TSB TTSB #: 24-AT-001H
New
39110-2S171
39110-2S172
39110-2S177
TNX4G25X2XSC0NS1
TNX4G25X2XSC0NS2
TNX4G25X2XSC1NS4
39110-2S173
39110-2S174
39110-2S178
TNX4G25X4XSC0NS1
TNX4G25X4XSC0NS2
TNX4G25X4XSC1NS4
Page 4 of 6
SUBJECT:
SUBJECT:
TCU & ECU UPDATE – ROUGH SHIFT AND HESITATION IMPROVED LOGIC
#1063. TMA F/L 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (TCU)
Event
#
#1063
Model
TCU
Part Number
Santa Fe (TMA)
2.5L GDI
39110-2S092
39110-2S094
39110-2S274
39110-2S276
39110-2S298
39110-2S093
39110-2S095
39110-2S275
39110-2S277
39110-2S299
TCU ROM ID
Old
New
STM2G25NH1
STM2G25NH2
STM2G25NH4
STM2G25NH3
STM4G25NH1
STM4G25NH4
STM4G25NH2
STM4G25NH3
#1065 TMA F/L 2.5GDI ROUGH SHIFT AND HESITATION IMPROVED LOGIC (ECU)
Event #
Model
ECU
Part Number
39110-2S059
39110-2S067
39110-2S060
39110-2S068
#1065
Santa Fe
(TMA)
2.5L GDI
TSB TTSB #: 24-AT-001H
39110-2S092
39110-2S093
39110-2S274
39110-2S275
39110-2S094
39110-2S095
39110-2S276
39110-2S277
39110-2S298
39110-2S299
ROM ID
Old
TACVN5GMH3XXXG2C
TACVN5GMH3XXXH0A
TACVN5GMH3XXXH0B
TACVN5GMI3XXXG2C
TACVN5GMI3XXXH0A
TACVN5GMI3XXXH0B
TACVN5GSH3XXXG2C
TACVN5GSH3XXXH0A
TACVN5GSH3XXXH0B
TACVN5GSI3XXXG2C
TACVN5GSI3XXXH0A
TACVN5GSI3XXXH0B
TADVN5GMH3XXXJ1A
TADVN5GMI3XXXJ1A
TADVN5GMH3XXXJ1B
TADVN5GMH3XXXL8A
TADVN5GMH3XXXL5A
TADVN5GMH3XXXL5B
TADVN5GMH3XXXL8A
TADVN5GSH3XXXJ1A
TADVN5GSH3XXXJ1B
TADVN5GSH3XXXL8A
TADVN5GSH3XXXL5A
TADVN5GSH3XXXL5B
TADVN5GSH3XXXL8A
TAEVN5GMH3XXXM0A
TAEVN5GMH3XXXM1A
TAEVN5GMI3XXXM0A
TAEVN5GMI3XXXM1A
New
TACVN5GMH3XXXH0C
TACVN5GMI3XXXH0C
TACVN5GSH3XXXH0C
TACVN5GSI3XXXH0C
TADVN5GMH3XXXL8B
TADVN5GSH3XXXL8B
TAEVN5GMH3XXXM1B
TAEVN5GMI3XXXM1B
Page 5 of 6
SUBJECT:
SUBJECT:
:
TCU & ECU UPDATE - ROUGH SHIFT AND HESITATION IMPROVED LOGIC
Manual Mode Password:
Event #
#1060
Model
Pasword
DN8a 2.5GDI TCU 39100-2SDE0/F0/J0/K0/L0/M0, 39103-2SDG0, 39104-2SDH0,
39105-2SDJ0/K0/L0/M0
2200
Tucson (NX4a) 2.5GDI TCU 39100/110-2S163~296 [SNX4G25X0XSC0SS0/2/3/4]
3296
Tucson (NX4a) 2.5GDI TCU 39100/110-2S170~297 [SNX4G25X4XSC0SS0/2/3/4]
0297
Tucson (NX4a) 2.5GDI TCU 39100/110-2S161~293 [TNX4G25X0XSC0SS0/2/3/4]
1293
Tucson (NX4a) 2.5GDI TCU 39100/110-2S169~294 [TNX4G25X4XSC0SS0/2/3/4]
9294
Santa Cruz (NX4a AT) 2.5GDI TCU 39100/110-2S171/2/7
1176
Santa Cruz (NX4a) AT) 2.5GDI TCU 39100/110-2S173/4/8
1177
Santa Fe (TMa) F/L 2.5GDI TCU 39100/110-2S092~300 [STM2G25NH1/2/3]
2300
Santa Fe (TMa) F/L 2.5GDI TCU 39100/110-2S093~301 [STM4G25NH1/2/3]
3301
Santa Fe (TMa) PE 2.5GDI ECU 39110-2S059
9502
TMa PE 2.5GDI ECU 39110-2S067
7602
TMa PE 2.5GDI ECU 39110-2S060
0602
TMa PE 2.5GDI ECU 39110-2S068
8602
TMa PE 2.5GDI ECU 39110-2S092/093/274/275
5722
TMa PE 2.5GDI ECU 39110-2S094/095/276/277
7722
TMa PE 2.5GDI ECU 39110-2S298
8922
TMa PE 2.5GDI ECU 39110-2S299
9944
TMa PE 2.5GDI ECU 39110-2S300
0032
TMa PE 2.5GDI ECU 39110-2S301
1032
#1061
#1062
#1063
#1065
TSB TTSB #: 24-AT-001H
Page 6 of 6
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MFR Communication Date: 2024-02-28
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