- Vehicles
- 594
- Built between
- Dec 2020 – Mar 2025
- Models
- 3
- Recall type
- Vehicle
- Initiated by
- Manufacturer
- Owners notified
- 11 June 2025
- Repaired
- 82%
- Unrepaired
- 107
Does this affect my vehicle?
This recall covers vehicles built between December 2020 and March 2025. If yours was built outside that window, it is not part of this recall.
- 2021-2025 Temsa TS30Built December 2020 to December 2024
- 2021-2025 Temsa TS35Built February 2021 to December 2024
- 2021-2026 Temsa TS45Built February 2021 to March 2025
Repair progress
107 of 594 vehicles in this recall had still not been repaired as of Q2 2026.
82% repaired — 487 of 594 reported
Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.
What the defect is
Temsa is recalling certain 2021-2025 TS30, TS35, and 2021-2026 TS45 buses equipped with a Mux5-B multiplex. The temporary bus stop valve may activate unintentionally and apply the brakes, causing them to overheat.
What could happen
Brakes that overheat can increase the risk of a fire.
What gets fixed
Temsa will inspect the multiplex, update the software, and repair the wiring harness as necessary, free of charge. Owner notification letters were mailed June 11, 2025.
Parts involved
- Mux5-BTemsa P/N =5638-ALK-01Mux5-B (it is an installation issue and not a manufacturing issue)
Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.
Timeline
- Vehicles builtDecember 2020 to March 2025
- Recall reported to NHTSA29 April 2025
- Owners notified11 June 2025
- Latest repair reportQ2 2026 — 82% repaired
Your rights
A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.
That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 29 April 2025.
To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.
Manufacturer contact
Owners may contact Temsa customer service at 1-833-628-3672.
Official source
- Recalling manufacturer
- Temsa
- Recall initiated by
- MFR
Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.
Additional notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-888-275-9171) or go to nhtsa.gov.
Check your own vehicle
This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.
A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.