Thomas Built Buses Electrical System: Alternator/Generator/Regulator

Thomas Built Buses is recalling about 1,434 vehicles over a problem with the electrical system. A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.

Campaign
21V850000
Manufacturer
Daimler Trucks North America, LLC
Reported
2 November 2021
Vehicles
1,434
Built between
Not published
Models
2
Recall type
Vehicle
Initiated by
Manufacturer
Owners notified
17 December 2021
Repaired
88%
Unrepaired
169

Does this affect my vehicle?

The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.

  • 2020-2022 Thomas Built Buses SAF-T-Liner EFX
  • 2020-2022 Thomas Built Buses SAF-T-Liner HDX

Repair progress

169 of 1,434 vehicles in this recall had still not been repaired as of Q3 2023.

88% repaired — 1,265 of 1,434 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

Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Thomas Built EFX and HDX school buses. The nut for the power cable stud on the alternator may not have been tightened properly, which can cause a loose cable connection.

What could happen

A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.

What gets fixed

Dealers will inspect the alternator power cable connection and tighten it if necessary, free of charge. Owner notification letters were mailed on December 17, 2021.

Parts involved

  • Nut23-13861-105NUT-HEX,FLG,LOCK, 5/16-18,ZN AL

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Recall reported to NHTSA2 November 2021
  2. Owners notified17 December 2021
  3. Latest repair reportQ3 2023 — 88% 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 2 November 2021.

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 DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL904.

Official source

Manufacturer's recall number
FL904
Recalling manufacturer
Daimler Trucks North America, LLC
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 1-800-424-9153), or go to www.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.

Same component

Same brand