# Service campaign 25\-01\-028H\-1 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: 11025591
- Published by NHTSA: 2025\-11\-18
- Manufacturer's number: 25\-01\-028H\-1 TSB
- Manufacturer's date: 2025\-11\-12
- Campaign id or software version: LA1A
- NHTSA component: SEATS

## NHTSA's summary

Certain 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 \(SHU\_FRT\). 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-11025591-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11025591-9999.pdf)

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

## Components

Seats

## Vehicles listed

- 2026 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\-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.
- [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.

JSON: [/v1/bulletins/11025591](/v1/bulletins/11025591)

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