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MODEL-YEAR RECALL REPORT

2015 Thomas Built Buses Saf-T-Liner Hdx recalls

NHTSA's September 21, 2026 snapshot lists 31 safety recall campaigns for the 2015 Thomas Built Buses Saf-T-Liner Hdx, spanning 8 component groups. A model match does not confirm that a specific VIN is included.

Official source: NHTSA recall campaign file · Snapshot September 21, 2026

Distinct campaigns31not VIN-specific
Component groups8distinct top-level categories
Latest recordOctober 12, 2022report received
VIN resultNot checkeduse official lookup

01 / OFFICIAL CAMPAIGNS

2015 Thomas Built Buses Saf-T-Liner Hdx recall campaigns

The 2015 Thomas Built Buses Saf-T-Liner Hdx report contains 31 distinct NHTSA campaigns; the most recently received record is campaign 22V762000 dated October 12, 2022.
Component
STRUCTURE
Report received
October 12, 2022
Potential units
17,613campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2011-2023 Thomas Built EFX and HDX school buses. The exterior roof panel was manufactured with insufficient joint strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength.".

Why it matters: A school bus exterior roof panel with insufficient joint strength may separate during a crash, increasing the risk of injury.

Remedy

Dealers will add additional mechanical fasteners to secure the joints, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL957.

Owner notification: June 2, 2023 · Filing manufacturer: Daimler Trucks North America, LLC

Component
SEATS
Report received
August 19, 2022
Potential units
7,561campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2011-2021 Thomas Built Saf-T Liner HDX school buses. The forward seat barriers may not provide sufficient protection to passengers. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 222, "School Bus Passenger Seating and Crash Protection.".

Why it matters: Occupants may collide with the front seat barriers with more force than intended during a crash, increasing the risk of injury.

Remedy

Dealers will install a spacer between the seat rail and the seat barrier, free of charge. Owner notification letters were mailed August 25, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL843. This recall replaces NHTSA recall 19V899.

Owner notification: August 25, 2023 · Filing manufacturer: Daimler Trucks North America, LLC

Component
SEATS
Report received
July 19, 2022
Potential units
1,806campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2014-23 Thomas Built Buses HDX and 2014-22 EFX school buses equipped with 39-inch S3C seat frames and 3-point flex seatbelts. The passenger seat frames may crack and rotate from fatigue.

Why it matters: Cracked passenger seat frames may not adequately secure passengers in the event of a crash, increasing the risk of injury.

Remedy

Dealers will secure the seat frames with brackets, free of charge. Owner notification letters were mail December 4, 2023. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL946.

Owner notification: December 4, 2023 · Filing manufacturer: Daimler Trucks North America, LLC

Component
EQUIPMENT, STRUCTURE
Report received
May 5, 2020
Potential units
7,979campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2010-2020 Thomas Built Buses Saf-T-Liner HDX school buses. The lettering on the instruction label for the rear emergency exit window may be too small. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 217, "Bus Emergency Exits and Window Retention and Release.".

Why it matters: Small lettering may be difficult for occupants to read, delaying the reaction time to open the exit, increasing the risk of injury.

Remedy

DTNA will notify owners and mail a new label to attach to the exit window by first class mail, free of charge. DTNA issued owners an interim notification on June 17, 2020. The recall began September 10, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-849.

Owner notification: September 10, 2020 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
October 4, 2019
Potential units
53,528campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2020 Thomas Built Saf-T-Liner EFX, Minotour, Saf-T-Liner C2, and Saf-T-Liner HDX school buses equipped with SynTec S3B or S3C seats. The seats may have been manufactured with styrene blocks that may not provide sufficient impact absorption in certain specific areas around the steel seat frame of the back support. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 222, "School Bus Passenger Seating and Crash Protection.".

Why it matters: The lack of impact absorption increases the risk of injury in the event of a crash.

Remedy

DTNA will notify owners, and dealers will install additional impact material between the re-bond back and the vinyl back cover to increase the amount of absorption, free of charge. DTNA issued owners an interim notification on November 29, 2019. The recall began June 22, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-832.

Owner notification: June 22, 2020 · Filing manufacturer: Daimler Trucks North America LLC

Component
EQUIPMENT ADAPTIVE/MOBILITY
Report received
August 23, 2018
Potential units
84campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2015-2019 Thomas Built Buses Saf-T-Liner C2 and Saf-T-Liner HDX school buses, equipped with certain S-Series and K-Series Titanium Wheelchair Lifts, models K200, K201, K550, K551, S200, S2201, S550 and S551. The wheelchair lift positioning input cam may fail while the lift is in use, allowing the platform to travel higher than the vehicle's floor height.

Why it matters: If the wheelchair lift platform stops above the vehicle floor, the wheelchair user can tip inwards toward the vehicle when exiting the lift, increasing their risk of injury.

Remedy

Dealers will replace the injection molded cam with an aluminum machined cam, free of charge. The recall began December 6, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL785.

Owner notification: December 6, 2018 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
April 19, 2018
Potential units
24campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner EFX, Saf-T-Liner HDX, and Minotour transit buses, equipped with certain S3B Restraint Wall Mounted Seats. The wall mounting bracket may crack, causing the seat to not remain secured in place in the event of a crash.

Why it matters: In the event of a crash, if the seat does not remain secured to the wall, the occupant has an increased risk of an injury.

Remedy

DTNA will notify owners, and dealers will install an additional wall mounting bracket, free of charge. Daimler issued an interim notification to owners on June 15, 20 18. The recall began January 3, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-769.

Owner notification: January 3, 2019 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
April 19, 2018
Potential units
23,102campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner HDX, Saf-T-Liner EFX, and Minotour school buses equipped with S3B Restraint Wall Mounted Seats. The wall mounting bracket may crack, causing the seat to not remain secured in place in the event of a crash.

Why it matters: In the event of a crash, if the seat does not remain secured to the wall, the occupant has an increased risk of an injury.

Remedy

DTNA will notify owners, and dealers will install an additional wall mounting bracket, free of charge. Daimler issued owners an interim notification on June 12, 2018. The recall began January 3, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-769.

Owner notification: January 3, 2019 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
March 26, 2018
Potential units
6campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner HDX, Saf-T-Liner EFX, and Minotour transit buses, equipped with certain Syntec-brand S3B, Non-Restraint, Wall Mounted Seats. The wall mounting bracket may crack, which may cause the seat to not remain secured in place in the event of a crash.

Why it matters: In the event of a crash, if the seat does not remain secured to the wall, the occupant has an increased risk of an injury.

Remedy

DTNA will notify owners, and dealers will install an additional wall mounting bracket, free of charge. DTNA issued an interim notification to owners on May 10, 2018. The recall began May 10, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-763.

Owner notification: May 10, 2019 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
March 26, 2018
Potential units
6,606campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner HDX, Saf-T-Liner EFX, and Minotour school buses, equipped with certain Syntec-brand S3B, Non-Restraint, Wall Mounted Seats. The wall mounting bracket may crack, which may cause the seat to not remain secured in place in the event of a crash.

Why it matters: In the event of a crash, if the seat does not remain secured to the wall, the occupant has an increased risk of an injury.

Remedy

DTNA will notify owners, and dealers will install an additional wall mounting bracket, free of charge. DTNA issued an interim notification to owners on May 9, 2018. The recall began May 10, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-763.

Owner notification: May 10, 2019 · Filing manufacturer: Daimler Trucks North America LLC

Component
EQUIPMENT
Report received
January 30, 2018
Potential units
606campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2002-2017 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner HDX, FS65, and Minotour school buses, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf.

Why it matters: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

Remedy

DTNA will notify owners instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall is expected to begin March 30, 2018. Owners may contact DTNA customer service at 1-800-547-0712 or Kidde customer service at 1-855-262-3540 or online at www.kidde.com and click on "Product Safety Recall" for more information. DTNA's number for this recall is FL-759.

Owner notification: April 11, 2018 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
September 21, 2017
Potential units
28campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner HDX and Saf-T-Liner C2 transit buses. A reinforcement bracket may be missing from the seats that have 3-point seat belts.

Why it matters: Without the reinforcement bracket, the seat may not remain adequately secured, increasing the risk of injury in a crash.

Remedy

DTNA will notify owners, and dealers will inspect the seats, installing any missing reinforcement brackets, as needed, free of charge. An interim notice was sent to owners on November 7, 2017. The recall began on March 14, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-747.

Owner notification: March 14, 2018 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
September 21, 2017
Potential units
53campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner HDX and Saf-T-Liner C2 school buses. A reinforcement bracket may be missing from the seats that have 3-point seat belts.

Why it matters: Without the reinforcement bracket, the seat may not be adequately secured, increasing the risk of injury in a crash.

Remedy

DTNA will notify owners, and dealers will inspect the seats, installing any missing reinforcement brackets, free of charge. An interim notice was mailed to owners on November 7, 2017. The recall began on March 15, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-747.

Owner notification: March 15, 2018 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 17V317000

Component
SEAT BELTS
Report received
May 11, 2017
Potential units
152campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2013-2018 Thomas Built Saf-T-Liner HDX school buses. The occupant seat lap belts may have been anchored to the seat instead of the bus structure.

Why it matters: A seat lap belt anchored to the seat instead of the bus structure may not properly restrain the seat occupant in the event of a crash, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will inspect the seats and modify the anchorage if necessary, free of charge. An interim notice was mailed to owners on June 15, 2017. A second notice will be mailed when the remedy becomes available. The recall is expected to begin on July 9, 2017. Owners may contact DTNA Customer Service 1-800-547-0712. DTNA's number for the recall is FL-736.

Owner notification: February 14, 2018 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 17V314000

Component
SEAT BELTS
Report received
May 11, 2017
Potential units
46campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2013-2018 Thomas Built Saf-T-Liner HDX transit buses. The occupant seat lap belts may have been anchored to the seat instead of the bus structure.

Why it matters: A seat lap belt anchored to the seat instead of the bus structure may not properly restrain the seat occupant in the event of a crash, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will inspect the seats and modify the seat belt anchorage if necessary, free of charge. An interim notification was sent to owners on June 15, 2017. The recall began on February 6, 2018. Owners may contact DTNA Customer Service 1-800-547-0712. DTNA's number for the recall is FL-736.

Owner notification: February 6, 2018 · Filing manufacturer: Daimler Trucks North America LLC

Component
SEATS
Report received
May 11, 2017
Potential units
1,132campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2014-2018 Thomas Built Buses Saf-T-Liner EFX and Saf-T-Liner HDX school buses. The occupant seats may have been installed without under-rail washers, reducing their anchorage strength.

Why it matters: Without under-rail washers, in the event of a crash, the seats may come loose, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will inspect the seats and replace the mounting hardware, as necessary, free of charge. The recall began on June 28, 2017. Owners may contact DTNA Customer Service 1-800-547-0712. DTNA's number for the recall is FL-737.

Owner notification: June 28, 2017 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 16V631000

Component
EQUIPMENT ADAPTIVE/MOBILITY
Report received
August 31, 2016
Potential units
3campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015-2017 Thomas Built Buses Saf-T-Liner C2, and Saf-T-Liner HDX transit buses manufactured July 15, 2014, to July 21, 2016, and equipped with certain model S2005, S2010, S5005, S5010, S5505, and S5510 wheelchair lifts by Ricon. The affected lifts are equipped with folding link arms that may have pivot holes that are too big, allowing the bearings to move out of position.

Why it matters: If the bearings move out of position, the stowed platform may have excessive movement resulting in failure of the platform mounting. This failure could cause the wheel chair lift platform to fall out of the vehicle when the doors are opened, increasing the risk of injury for the lift operator.

Remedy

DTNA will notify owners, and Ricon dealers will inspect the link arms for damage or for displaced bearings. The platform will be inspected for cracks. Any damaged parts will be replaced, free of charge. The recall began on October 10, 2016. Owners may contact DTNA customer service at 1-800-547-0712, or Ricon customer service at 1-800-322-2884 or by email at [email protected]. DTNA's number for this recall is FL-716.

Owner notification: October 10, 2016 · Filing manufacturer: Daimler Trucks North America LLC

Component
EQUIPMENT ADAPTIVE/MOBILITY
Report received
August 31, 2016
Potential units
958campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015-2017 Thomas Built Buses Safe-T-Liner C2, Saf-T-Liner HDX, Saf-T-Liner EFX, and Minotour DRW school buses manufactured July 15, 2014, to July 21, 2016, and equipped with certain model S2005, S2010, S5005, S5010, S5505, and S5510 wheelchair lifts by Ricon. The affected lifts are equipped with folding link arms that may have pivot holes that are too big, allowing the bearings to move out of position.

Why it matters: If the bearings move out of position, the stowed platform may have excessive movement resulting in failure of the platform mounting. This failure could cause the wheel chair lift platform to fall out of the vehicle when the doors are opened, increasing the risk of injury for the lift operator.

Remedy

DTNA will notify owners, and Ricon dealers will inspect the link arms for damage or for displaced bearings. The platform will be inspected for cracks. Any damaged parts will be replaced, free of charge. The recall began on October 10, 2016. Owners may contact DTNA customer service at 1-800-547-0712, or Ricon customer service at 1-800-322-2884 or by email at [email protected]. DTNA's number for this recall is FL-716.

Owner notification: October 10, 2016 · Filing manufacturer: Daimler Trucks North America LLC

Component
STRUCTURE
Report received
June 2, 2016
Potential units
24,698campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 1998-2002 Thomas Built Buses Saf-T-Liner Conventional, 2000-2002 Saf-T-Liner ER, 2000-2017 Saf-T-Liner MVP-EF, 1998-1999 Vista, 2003 Saf-T-Liner FS65, 2013-2017 Saf-T-liner C2, 2000-2002 Saf-T-Liner MVP-ER, 2013-2017 Saf-T-Liner HDX. In the affected vehicles, the stem that connects the outside emergency door handle to the emergency door opening mechanism may corrode.

Why it matters: If the stem corrodes, the door handle could detach from the emergency door opening mechanism, delaying the opening of the door and the evacuation of the bus. In the event of an emergency, this may increase the risk of injury to the bus occupants.

Remedy

DTNA will notify owners, and dealers will either replace the stems or protect them against corrosion, free of charge. An interim notice was sent to owners on July 28, 2016. A second notice was mailed to owners on December 16, 2016. Parts are available. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-713.

Owner notification: December 9, 2016 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 16V326000

Component
ENGINE AND ENGINE COOLING, POWER TRAIN
Report received
May 19, 2016
Potential units
43campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2011-2017 Thomas Built Buses Saf-T-Liner HDX buses manufactured April 28, 2010, to April 15, 2016. The affected vehicles have a transmission retarder that may increase coolant system pressure high enough to cause hose fatigue and lead to premature failure of the hose, resulting in a coolant leak inside the bus body.

Why it matters: If the heater hose fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.

Remedy

DTNA will notify owners, and dealers will replace the heater hose, free of charge. DTNA distributed interim notifications to owners on July 6, 2016. The recall began on September 20, 2016. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-709.

Owner notification: September 20, 2016 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 16V325000

Component
ENGINE AND ENGINE COOLING, POWER TRAIN
Report received
May 19, 2016
Potential units
94campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2011-2017 Thomas Built Buses Saf-T-Liner HDX school buses manufactured April 28, 2010, to April 15, 2016. The affected vehicles have a transmission retarder that may increase coolant system pressure high enough to cause hose fatigue and lead to premature failure of the hose, resulting in a coolant leak inside the bus body.

Why it matters: If the heater hose fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.

Remedy

DTNA will notify owners, and dealers will replace the heater hose, free of charge. An interim notice was mailed on July 6, 2016. The recall began on September 20, 2016. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-709.

Owner notification: September 20, 2016 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 16V324000

Component
ENGINE AND ENGINE COOLING
Report received
May 19, 2016
Potential units
131campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2017 Thomas Built Buses Saf-T-Liner HDX buses manufactured November 29, 2012, to February 4, 2016. These vehicles use a rubber elbow to connect a coolant line to a heater inside the bus. This elbow may restrict coolant flow and possibly fail as a result of the increased stress on the elbow.

Why it matters: If the rubber elbow fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.

Remedy

DTNA will notify owners, and dealers will replace the rubber elbow with a nylon fitting, free of charge. An interim notice was mailed on July 6, 2016. The recall began on September 20, 2016. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-708.

Owner notification: September 20, 2016 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 16V323000

Component
ENGINE AND ENGINE COOLING
Report received
May 19, 2016
Potential units
2,032campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2017 Thomas Built Buses Saf-T-Liner HDX school buses manufactured November 29, 2012, to February 4, 2016. These vehicles use a rubber elbow to connect a coolant line to a heater inside the bus. This elbow may restrict coolant flow and possibly fail as a result of the increased stress on the elbow.

Why it matters: If the rubber elbow fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.

Remedy

DTNA will notify owners, and dealers will replace the rubber elbow with a nylon fitting, free of charge. An interim notice was sent out to owners on July 6, 2016. The recall began on September 20, 2016. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-708.

Owner notification: September 20, 2016 · Filing manufacturer: Daimler Trucks North America LLC

Component
EQUIPMENT ADAPTIVE/MOBILITY
Report received
September 4, 2015
Potential units
4,334campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2006-2015 Thomas Built Buses FS-65, Saf-T-Liner C2, Saf-T-Liner EF, Saf-T-Liner EFX, Saf-T-Liner HDX, and Minotour DRW school buses manufactured January 3, 2006, to August 1, 2014, and equipped with certain Ricon model S2005, S2010, S5005, S5010, S5505, S5510 wheelchair lifts. The affected lifts are equipped with folding link arms that may have pivot holes that are too big, allowing the bearings to move out of position.

Why it matters: If the bearings move out of position, the stowed platform may have excessive movement resulting in failure of the platform mounting. This failure could cause the wheel chair lift platform to fall out of the vehicle when the doors are opened, increasing the risk of injury for the lift operator.

Remedy

DTNA will notify owners, and dealers will inspect the link arms for damage or for displaced bearings. The platform will be inspected for cracks. Any damaged parts will be replaced, free of charge. The recall began onNovember 2, 2015. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-686.

Owner notification: November 2, 2015 · Filing manufacturer: Daimler Trucks North America LLC

Component
EQUIPMENT ADAPTIVE/MOBILITY
Report received
September 4, 2015
Potential units
52campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2006-2015 Thomas Built Buses Saf-T-Liner HDX, Saf-T-Liner EF, Saf-T-Liner EFX, and Minotour DRW transit buses manufactured January 3, 2006, to August 1, 2014, and equipped with certain Ricon model S2005, S2010, S5005, S5010, S5505, S5510 wheelchair lifts. The affected lifts are equipped with folding link arms that may have pivot holes that are too big, allowing the bearings to move out of position.

Why it matters: If the bearings move out of position, the stowed platform may have excessive movement resulting in failure of the platform mounting. This failure could cause the wheel chair lift platform to fall out of the vehicle when the doors are opened, increasing the risk of injury for the lift operator.

Remedy

DTNA will notify owners, and dealers will inspect the link arms for damage or for displaced bearings. The platform will be inspected for cracks. Any damaged parts will be replaced, free of charge. The recall began on November 2, 2015. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-686.

Owner notification: November 2, 2015 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 15V344000

Component
ENGINE AND ENGINE COOLING
Report received
June 3, 2015
Potential units
746campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2008-2015 Thomas Built Buses Saf-T-Liner HDX school buses manufactured May 25, 2008, to December 18, 2014, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Why it matters: If engine oil comes into contact with a hot surface, there is an increased risk of a fire.

Remedy

Cummins will notify owners on behalf of DTNA, and dealers secure the ends of the 90-degree elbow. In addition, the electronic control module (ECM) will be reprogrammed with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact DTNA customer service at 1-800-745-8000, or Cummins customer service at 1-800-343-7357. DTNA's number for this recall is FL-681.

Owner notification: June 12, 2015 · Filing manufacturer: Daimler Trucks North America LLC

Component
ENGINE AND ENGINE COOLING
Report received
June 3, 2015
Potential units
3,200campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2007-2016 Freightliner 114SD and M2 Business Class trucks, 2008-2009 Sterling LT8500 trucks and Thomas Built Bus Saf-T-Liner HDX transit buses equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Why it matters: If engine oil comes into contact with a hot surface, there is an increased risk of a fire.

Remedy

Cummins will notify owners on behalf of DTNA, and dealers will secure the ends of the 90-degree elbow. In addition, the electronic control module (ECM) will be reprogrammed with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact DTNA customer service at 1-800-745-8000 or Cummins customer service at 1-800-343-7357. DTNA's number for this recall is FL-681.

Owner notification: June 12, 2015 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 14V669000

Component
FUEL SYSTEM, DIESEL
Report received
October 24, 2014
Potential units
133campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Thomas Built Buses Saf-t-liner school buses manufactured May 2, 2014, to July 31, 2015. The Cummins ISB or ISL engines in these vehicles may have been equipped with Fleetguard UFF-XT fuel filters, part number FF63009, whose filter shell may separate from the fuel filter nut plate causing the engine to stall without warning.

Why it matters: If the engine stalls unexpectedly there is an increased risk of a crash.

Remedy

Cummins has notified owners on behalf of DTNA, and dealers will replace the fuel filter with a non-defective one, free of charge. The recall began in late September 2014. Owners may contact DTNA customer service at 1-800-745-8000 or Cummins customer service at 1-800-223-4583. DTNA's number for this recall is FL-664.

Owner notification: September 29, 2014 · Filing manufacturer: Daimler Trucks North America LLC

Component
ENGINE AND ENGINE COOLING
Report received
February 21, 2014
Potential units
3,258campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (Daimler) is recalling certain model year 2008-2015 Freightliner 114SD, Cascadia, M2 Business Class, Sterling LT8500, and Thomas Built Buses Saf-T-Liner HDX vehicles manufactured February 19, 2008, through February 11, 2014, and equipped with Cummins Westport Model ISL G and Cummins Westport Model ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.

Why it matters: The sensor malfunction could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.

Remedy

Cummins and Cummins Westport will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on April 12, 2014. Customers may contact Daimler at 1-800-385-4357 or Cummins Inc. at 1-800-343-7357. Daimler's number for this recall is FL-660.

Owner notification: April 12, 2014 · Filing manufacturer: Daimler Trucks North America

CAMPAIGN

NHTSA 14V079000

Component
ENGINE AND ENGINE COOLING
Report received
February 21, 2014
Potential units
727campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (Daimler) is recalling certain model year 2009-2015 Thomas Built Saf-T-Liner HDX school buses manufactured February 25, 2008, through February 11, 2014, equipped with Cummins Westport Model ISL G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.

Why it matters: The sensor malfunction could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.

Remedy

Cummins and Cummins Westport will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on April 12, 2014. Customers may contact Daimler at 1-800-385-4357 or Cummins Inc. at 1-800-343-7357. Daimler's number for this recall is FL-660.

Owner notification: April 12, 2014 · Filing manufacturer: Daimler Trucks North America

CAMPAIGN

NHTSA 13V606000

Component
SEAT BELTS
Report received
November 29, 2013
Potential units
145campaign-wide
Defect and consequence

Defect: Daimler Trucks North America (DTNA) is recalling certain model year 2013-2015 Thomas Built Buses Saf-T-Liner C2, Saf-T-Liner HDX, and Minotour school buses manufactured August 5, 2013, through November 15, 2013 and equipped with IMMI-brand L9 seat belt buckles. When the button is pressed to release the seat belt, the latch plate can become partially engaged with the buckle, making the seat belt difficult to unlatch. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 209, "Seat Belt Assemblies.".

Why it matters: If the latch plate remains partially engaged after the button is pressed, egress from the vehicle could be hindered which would increase the risk of injury in the event of an emergency.

Remedy

DTNA will notify owners, and dealers will inspect and replace the seat belt buckles, as necessary, free of charge. The recall is expected to by January 26, 2014. Owners may contact DTNA at 1-800-385-4357. DTNA's number for this campaign is FL-654.

Owner notification: Date not reported · Filing manufacturer: Daimler Trucks North America

02 / COMPONENT BREADTH

What defects are listed for the 2015 Thomas Built Buses Saf-T-Liner Hdx?

The most frequent component groups in 2015 Thomas Built Buses Saf-T-Liner Hdx campaign records are Seats (10), Engine And Engine Cooling (8), Equipment Adaptive/Mobility (5), Seat Belts (3), Structure (3); these counts describe filed campaigns rather than observed failure rates.
Seats10
Engine And Engine Cooling8
Equipment Adaptive/Mobility5
Seat Belts3
Structure3