Thomas Built Saf-T-Liner Hdx School Bus — Heater And Defroster
High risk
Feb 13, 2026
Model years: 2023, 2024, 2025
On certain school buses, the heater hose clamps may not have been tightened properly. As a result, the heater hose could disconnect, and coolant could leak into the bus.
Also affects: Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Label
High risk
Jul 24, 2024
Model years: 2019, 2020
Issue: On certain school buses, the letters on the instruction labels for the emergency exits are too small. This could make it difficult to read the label. Canadian regulations re
Also affects: Thomas Built Minotour Srw School Bus, Thomas Built Minotour Drw School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
May 25, 2023
Model years: 2013, 2014, 2015, 2016, 2017, 2018
On certain school bus seats, the plastic trim (bezel) where the shoulder seat belt comes out of the seatback may be too hard. Canadian regulations have requirements for anything th
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
Nov 28, 2022
Model years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Issue: On certain school buses, the restraining barrier between the entrance door and the first seat may not meet the energy absorption requirements of Canadian regulations. Safety
Thomas Built Saf-T-Liner Hdx School Bus — Structure
High risk
Oct 12, 2022
Model years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Certain school buses may not meet Canadian regulations for roof panel joint strength.
Also affects: Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Structure
High risk
Sep 14, 2022
Model years: 2020, 2021, 2022, 2023
Issue: On certain school buses, the exterior side body panel(s) may not have been attached properly. As a result, the buses may not meet the joint strength requirements of Canadian
Thomas Built Saf-T-Liner Hdx School Bus — Electrical
High risk
Apr 25, 2022
Model years: 2019, 2020, 2021, 2022
Issue: On certain school buses, the positive battery cable could be damaged by contact with the transmission oil cooler hose. If this happens, the battery cable could short circuit
Thomas Built Saf-T-Liner Hdx School Bus — Electrical
High risk
Nov 2, 2021
Model years: 2020, 2021, 2022
Issue: On certain school buses, the alternator power cable connection may not have been properly tightened. As a result, the power cable could loosen or separate from the alternato
Also affects: Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Electrical
High risk
Aug 25, 2021
Model years: 2018
On one school bus, the power steering hose may have been routed incorrectly. As a result, the hose could be damaged by contact with the alternator charge cable and cause a short ci
Thomas Built Saf-T-Liner Hdx School Bus — Fuel System
High risk
May 21, 2021
Model years: 2019
Issue: On one school bus, the fuel rail assembly could develop a leak. Note: This recall only affects vehicles equipped with a Cummins L9 or ISX12 diesel engine. Safety Risk: A fue
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
Dec 17, 2019
Model years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
This recall was replaced by Transport Canada recall number 2022-680. Issue: On certain school buses, the restraining barrier between the entrance door and the first seat may not me
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
Oct 4, 2019
Model years: 2014, 2015, 2016, 2017, 2018, 2019, 2020
This recall affects certain school buses equipped with SynTec S3B and/or S3C passenger seats. On some seats, the protective foam in certain areas of the seatback may not meet the k
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Brakes
High risk
Jun 12, 2019
Model years: 2014, 2015, 2016, 2017, 2018, 2019
A problem with the left-rear brake caliper on certain school buses may cause the brake pads to drag and overheat. This could result in high temperatures, smoke, odour, or a possibl
Also affects: Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
Apr 20, 2018
Model years: 2014, 2015, 2016, 2017, 2018
On certain school buses equipped with Syntec S3B restraint seats, under extreme operating conditions, such as adverse road conditions, repetitive shock loads, or occupant abuse, a
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Accessories
High risk
Jan 15, 2018
Model years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
On certain school buses equipped with Kidde fire extinguishers with black plastic handles and valves, the fire extinguishers may become clogged or require excessive force to activa
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Fs-65 School Bus, Thomas Built Saf-T-Liner Mvp Ef School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
May 12, 2017
Model years: 2014, 2015, 2016, 2017, 2018
Certain school buses built with wall-mounted seat options may fail to conform to Canada Motor Vehicle Safety Standard (CMVSS) 222 – School Bus Passenger Seating and Crash Protectio
Thomas Built Saf-T-Liner Hdx School Bus — Steering
High risk
Feb 28, 2017
Model years: 2017
On certain school buses, the pinch bolt of the upper steering shaft may not have been tightened to the proper specification. This could lead to a loss of the mechanical connection
Thomas Built Saf-T-Liner Hdx School Bus — Heater And Defroster
High risk
May 13, 2016
Model years: 2011, 2012, 2013, 2014, 2015, 2016, 2017
On certain school buses equipped with a transmission retarder, a bypass fitting may locally increase the coolant system pressures beyond the application working pressure of the sta
Thomas Built Saf-T-Liner Hdx School Bus — Heater And Defroster
High risk
May 13, 2016
Model years: 2014, 2015, 2016, 2017
On certain school buses, the coolant line connected to the heater inside the bus may have been built with a fitting made out of incorrect material. This could restrict coolant flow
Thomas Built Saf-T-Liner Hdx School Bus — Accessories
High risk
Feb 9, 2016
Model years: 2016, 2017
Certain school buses may not conform to Canada Motor Vehicle Safety Standard (CMVSS) 131 - School Bus Pedestrian Safety Devices. The STOP decal may not adhere properly to the stop
Also affects: Thomas Built Minotour Drw School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Seats And Restraints
High risk
Jan 13, 2016
Model years: 2016, 2017
Certain school buses may fail to conform to Canada Motor Vehicle Safety Standard (CMVSS) 222 – School Bus Passenger Seating and Crash Protection. The SynTec S3B track seat may not
Also affects: Thomas Built Minotour Drw School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Accessories
High risk
Sep 8, 2015
Model years: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
On certain school buses equipped with a Ricon wheelchair lift, the lift platform sides may crack, which could cause the lift to lean against the vehicle door(s) and potentially fal
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Engine
High risk
Jul 24, 2015
Model years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
On certain school buses equipped with Cummins Westport ISL-G engines, excessive engine crankcase pressure could cause the vent tube assembly molded rubber adapter to detach from th
Thomas Built Saf-T-Liner Hdx School Bus — Accessories
High risk
Aug 6, 2014
Model years: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
On certain school buses equipped with a Ricon wheelchair lift, the lift platform sides may crack, which could cause the lift to lean against the vehicle door(s) and potentially fal
Also affects: Thomas Built Minotour School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Engine
High risk
Feb 21, 2014
Model years: 2009, 2010, 2011, 2012, 2013, 2014, 2015
On certain vehicles equipped with Cummins ISL G or ISX12 G engines, incorrect engine ECU programming could cause the exhaust system temperature to become elevated during cold weath
Thomas Built Saf-T-Liner Hdx School Bus — Fuel System
High risk
Aug 14, 2013
Model years: 2013, 2014
On certain school buses, an information label may detach from the auxiliary heater fuel pickup tube and block the engine fuel suction tube, which could restrict or stop the flow of
Also affects: Thomas Built Saf-T-Liner Efx School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Engine
High risk
Sep 13, 2011
Model years: 2011, 2012
On certain school buses equipped with a Cummins engine, the V-band clamps used to connect the inlet and outlet cone sections to the Diesel Oxidation Catalyst (DOC) / Diesel Particu
Also affects: Thomas Built Mvp-Ef School Bus, Thomas Built Saf-T-Liner C2 School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Accessories
High risk
Mar 29, 2011
Model years: 2006, 2007, 2008, 2009, 2010, 2011
On certain vehicles equipped with a Carrier GenV EM-1 evaporator unit, the blower motor fuse assembly may allow the fuse to loosen over time, which could result in high resistance
Also affects: Thomas Built Minotour School Bus, Thomas Built Mvp-Ef School Bus, Thomas Built Saf-T-Liner C2 School Bus, Thomas Built Saf-T-Liner Fs-65 School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Engine
High risk
Oct 7, 2010
Model years: 2008, 2009, 2010, 2011
On certain school buses, the engine software may not react properly to certain aftertreatment device fault codes. The software may unnecessarily shutdown or may fail to shutdown a
Also affects: Thomas Built Saf-T-Liner C2 School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Other
High risk
Oct 5, 2009
Model years: 2009, 2010
On certain school buses, a production change may end-up reducing the effective life of the stop arm lights. Should the lights fail, visibility of a stopped bus would be affected. T
Also affects: Thomas Built Saf-T-Liner C2 School Bus
Thomas Built Saf-T-Liner Hdx School Bus — Electrical
High risk
Jan 9, 2009
Model years: 2003, 2004, 2005, 2006
On certain buses, the automatic transmission Vehicle Interface Module (VIM) may become corroded due to water and road spray intrusion. VIM corrosion may cause the starter motor to
Also affects: Thomas Built Saf-T-Liner Hdx Non-School Bus