# Service bulletin 23\-AT\-014H

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10241887
- Published by NHTSA: 2023\-09\-06
- Manufacturer's number: 23\-AT\-014H
- Manufacturer's date: 2023\-08\-28
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

The Shift\-By\-Wire \(SBW\) buttons have been made available as separate service parts for the SBW lever. If replacement of the SBW button is required due to one or more button plating peeling, replace the button\(s\) with a new one. Do not replace the complete SBW lever.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241887-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241887-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline

## Vehicles listed

- 2021 to 2023 HYUNDAI SANTA FE
- 2021 to 2023 HYUNDAI SANTA FE HYBRID
- 2022 to 2023 HYUNDAI SANTA FE PLUG\-IN HYBRID
- 2022 to 2024 HYUNDAI TUCSON
- 2022 HYUNDAI TUCSON HYBRID

## Recalls for the same vehicles and component

- [2023414](/recalls/tc/2023414.md), 2023-07-27: Powertrain
- [23V526000](/recalls/nhtsa/23V526000.md), 2023-07-27: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:PUMP
- [2023147](/recalls/tc/2023147.md), 2023-03-17: Electrical
- [2022727](/recalls/tc/2022727.md), 2022-12-16: Electrical
- [2022568](/recalls/tc/2022568.md), 2022-10-06: Powertrain
- [22V746000](/recalls/nhtsa/22V746000.md), 2022-10-06: POWER TRAIN:AUTOMATIC TRANSMISSION
- [21V00K000](/recalls/nhtsa/21V00K000.md), 2021-12-28: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [21V938000](/recalls/nhtsa/21V938000.md), 2021-12-02: ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING

## Other bulletins for the same vehicles and component

- [26\-BE\-001H\-2 DCS](/bulletins/11038179.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this Technical Service Bulletin \(TSB\)26\-BE\-001H\-2 to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is with original warranty of 5 years/60,000 miles.
- [26\-BE\-001H\-2 TSB](/bulletins/11038173.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles under 10 years / 120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years / 60,000 miles.
- [26\-EE\-007H TSB](/bulletins/11034027.md), 2026-06-23, Service bulletin: ELECTRICAL SYSTEM. Some Palisade \(LX2\), Tucson \(NX4\), and Tucson Hybrid \(NX4 HEV\) vehicles may experience battery drain due to continuous operation of the cooling fan after vehicle ignition has been turned off, potentially resulting in a no\-start condition. The continuous cooling fan operation is caused by a stuck relay in the engine room PCB block. This bulletin provides instructions to replace the engine room PCB block to ensure the proper operation of the cooling fan.
- [26\-AT\-005H TSB](/bulletins/11033840.md), 2026-06-16, Service bulletin: POWER TRAIN. This bulletin provides information related to a Transmission Control Unit \(TCU\) software update for some vehicles equipped with an 8\-speed wet dual clutch transmission \(8WDCT\). The software update revises the touch point learning variation, improving drivability and judder symptoms. Some 8WDCTs \(indicated by a new part number\) received an updated clutch spring. The correct TCU software update must be matched with the correct corresponding 8WDCT hardware, otherwise, drivability concerns may occur. This service procedure should be performed prior to any 8WDCT replacements done for drivability/judder concerns.
- [26\-GI\-002H TSB](/bulletins/11033710.md), 2026-06-06, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater \(NAU\) and updated by USB.
- [26\-EE\-003H TSB](/bulletins/11031400.md), 2026-04-21, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch \(solenoid\) assembly.
- [26\-EM\-009H TSB](/bulletins/11030329.md), 2026-03-30, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Some Sonata \(DN8\) and Tucson \(NX4/NX4A/NX4M\) vehicles equipped with the 2.5L Theta III GDI engine may display a warning lamp and store Diagnostic Trouble Code \(DTC\) P2B59F0, which relates to the Integrated Thermal Management Module \(ITM\) circuit due to a logic error. This bulletin provides instructions to update the Engine Control Module \(ECM\) logic to correct this condition.
- [26\-AT\-001H TSB](/bulletins/11029937.md), 2026-03-11, Service bulletin: POWER TRAIN. Some Santa Cruz \(NXT\), Santa Fe \(TMA, MX5A\), and Sonata \(DN8A\) models may require replacement of the 8\-speed wet dual clutch transmission \(8WDCT\) when the vehicle sets one of the high pressure electric oil pump \(HP EOP\) DTCs listed below. This bulletin provides instructions to replace the 8WDCT.
- [26\-AT\-002H](/bulletins/11028968.md), 2026-02-24, Service bulletin: POWER TRAIN. Some Santa Fe \(TMA\) and Tucson \(NX4A\) vehicles equipped with a 2.5L GDI engine and 8 speed automatic transmission may have DTC U028700 \(Lost Communication With Trans Fluid Pump Module\) set by the transmission Electric Oil Pump \(EOP\). This DTC can cause the Idle Stop \& Go \(ISG\) system to become inoperative. Follow the procedure in this bulletin to replace the Electric Oil Pump on affected vehicles.
- [25\-01\-089H DCS](/bulletins/11027035.md), 2026-01-06, Other: ELECTRICAL SYSTEM. Upon customer's request ONLY, the Technical Service Bulletin \(TSB\) 25\-01\-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti\-theft decals on the front windows. This repair procedure is being provided in addition to the previous Anti\-Theft software provided under Service Campaign 993 \(TSB 24\-01\-009H\-1\).

JSON: [/v1/bulletins/10241887](/v1/bulletins/10241887)

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