# Service campaign 25\-01\-028H TSB

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 campaign
- NHTSA id: 11017338
- Published by NHTSA: 2025\-04\-30
- Manufacturer's number: 25\-01\-028H TSB
- Manufacturer's date: 2025\-04\-23
- Campaign id or software version: TCVA
- NHTSA component: SEATS

## NHTSA's summary

Certain Santa Fe Hybrid \(MX5A HEV\) vehicles may experience battery drain due to incorrect ECU logic for the Seat Heater Unit – Front \(SHU\_FRT\). This bulletin provides instructions to perform a software update for the Seat Heater Unit – Front to correct the logic.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017338-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017338-9999.pdf)

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

## Components

Seats

## Vehicles listed

- 2024 to 2025 HYUNDAI SANTA FE HYBRID

## Recalls for the same vehicles and component

- [2026170](/recalls/tc/2026170.md), 2026-04-06: Seats And Restraints

## Other bulletins for the same vehicles and component

- [26\-BD\-005H TSB](/bulletins/11036636.md), 2026-09-02, Service bulletin: SEATS. Some Santa Fe Hybrid \(MX5A HEV\) vehicles may have walk\-in switches that are not fully secured. This bulletin provides instructions to trim the seat cover and replace the walk\-in switch with improved parts.
- [26\-BD\-008H TSB](/bulletins/11036617.md), 2026-09-02, Service bulletin: SEATS. Some Santa Fe \(MX5A\) and Santa Fe Hybrid \(MX5A HEV\) vehicles equipped with natural leather or Nappa leather seating surfaces may exhibit wrinkling on the first or second row seat cushions or seat backs, or tearing along the perforation holes due to the stiffness of the leather material. This bulletin provides instructions to replace the wrinkled or torn seat covers.
- [26\-BE\-015H TSB](/bulletins/11033837.md), 2026-06-16, Service bulletin: SEATS. Some Santa Fe \(MX5A\) and Santa Fe Hybrid \(MX5A HEV\) vehicles equipped with power seats with or without Integrated Memory System \(IMS\) may produce buzz, squeak, rattle noises when the driver’s front seat is adjusted forward or backwards due to friction within the motor’s tube. This bulletin provides instructions to remove the motor tube.
- [26\-BD\-001H TSB](/bulletins/11030084.md), 2026-03-16, Service bulletin: SEATS. Some Santa Fe \(MX5A\) and Santa Fe Hybrid \(MX5A HEV\) vehicles equipped with 2nd row captain’s chairs have an armrest cap that may detach. This bulletin provides the procedure to replace the armrest cap on the 2nd row captain’s chairs with a revised part.
- [25\-01\-025H\-1 TSB](/bulletins/11025590.md), 2025-11-18, Service campaign: SEATS. Certain Santa Fe \(MX5A\) vehicles may experience battery drain and inoperative heated seat capacitive touch buttons due to incorrect ECU logic for the Seat Heater Unit – Front \(SHU\_FRT\). This bulletin provides instructions to perform a software update for the Seat Heater Unit – Front to correct the logic.
- [LA1/LA1A DCS](/bulletins/11025589.md), 2025-11-18, Service campaign: SEATS. Certain Santa Fe \(MX5A\) and Santa Fe Hybrid \(MX5A HEV\) vehicles may experience battery drain and inoperative heated seat capacitive touch buttons due to incorrect ECU logic for the Seat Heater Unit – Front \(SHU\_FRT\). Technical Service Bulletins \(TSBs\) 25\-01\-025H\-1 and 25\-01\-028H\-1 provides instructions to perform a software update for the Seat Heater Unit – Front to correct the logic. Over\-the\-Air \(OTA\): This update can also be conducted via OTA. The customer can complete on his/her own if he/she has an active subscription to Hyundai Bluelink. A visit to the dealership is not required. Deployment of the OTA to Bluelink customers is planned to start the week of 11/11/25.
- [25\-01\-025H TSB](/bulletins/11016110.md), 2025-04-01, Service campaign: SEATS. Certain Santa Fe \(MX5A\) vehicles may experience battery drain due to incorrect ECU logic for the Seat Heater Unit – Front \(SHU\_FRT\). This bulletin provides instructions to perform the software update for the Seat Heater Unit – Front to correct the logic.

JSON: [/v1/bulletins/11017338](/v1/bulletins/11017338)

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