Automatic transmission: torque converterRecall 19V-831 · 2018–2020 Thomas Built Buses Saf-t-liner HDX

Daimler Trucks North America LLC recall 19V-831 covers 30 2018–2020 Thomas Built Buses Saf-t-liner HDX for a automatic transmission: torque converter problem, reported to NHTSA on November 19, 2019. The manufacturer's latest report (2022 Q2) shows 77% of affected vehicles repaired.

77%
Vehicles repaired23 of 30 · 2022 Q2
Vehicles affected301 model
ReportedNov 19, 2019Owners notified Aug 7, 2020
Complaints since1Same system, after the recall

Source: NHTSA recall 19V831000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

Daimler Trucks North America LLC (DTNA) is recalling certain 2018-2020 Thomas Built Saf-T-Liner HDX school buses equipped with Detroit DD8 Engines and Allison Transmissions. The Flex-Plate/Torque Converter fasteners may have been insufficiently tightened.

The risk

The loose bolts can become lodged in the starter, disabling the bus, resulting in an evacuation in an uncontrolled traffic situation, increasing the risk of an injury.

What to do

The fix

DTNA will notify owners, and dealers will inspect and tighten the fasteners, as necessary, free of charge. DTNA issued owners an interim notification on December 13, 2019. The recall began August 7, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-839.

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.safercar.gov.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

Repair progress

How fast cars are being fixed

77%repaired

Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.

0%50%100%2020 Q32022 Q2
1 model

Vehicles in this recall

Built from May 3, 2017 to April 17, 2019. Not every vehicle in these model years is included; check by VIN.