2012 Thomas Built Buses SAF-T-Liner HDX: recalls and complaints

NHTSA lists 19 recall campaigns for the 2012 Thomas Built Buses SAF-T-Liner HDX. The newest campaign is 22V762000. NHTSA received the report on 12 Oct 2022. The NHTSA record gives the component Structure / Body / Roof and Pillars. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 22V762000, in the NHTSA record

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.

NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on 1 Oct 2026. Complaint file through 30 Sep 2026. Recall file through 30 Sep 2026.

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

19 campaigns, newest first. 162,117 units in total.

22V76200012 Oct 2022Structure / Body / Roof and Pillars
22V63400019 Aug 2022Seats / Barriers
20V2520005 May 2020Structure / Emergency / Escape/Egress/Exit
18V08300030 Jan 2018Equipment
16V32600019 May 2016Power Train / Automatic Transmission
16V32500019 May 2016Power Train / Automatic Transmission
15V5640004 Sep 2015Equipment Adaptive/Mobility
15V5650004 Sep 2015Equipment Adaptive/Mobility
15V4320007 Jul 2015Structure / Body / Door
15V4250006 Jul 2015Structure / Body / Door
15V3430003 Jun 2015Engine and Engine Cooling / Engine
15V3440003 Jun 2015Engine and Engine Cooling / Engine
14V07900021 Feb 2014Engine and Engine Cooling / Engine
14V08000021 Feb 2014Engine and Engine Cooling / Engine
13V53700030 Oct 2013Seats
12V29700028 Jun 2012Structure / Body / Roof and Pillars
12V29600028 Jun 2012Structure / Body / Roof and Pillars
11V48000021 Sep 2011Engine and Engine Cooling
11V47400015 Sep 2011Engine and Engine Cooling

22V762000Received 12 Oct 2022. 17,613 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
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."
Consequence, in the NHTSA record
A school bus exterior roof panel with insufficient joint strength may separate during a crash, increasing the risk of injury.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America, LLC. Manufacturer campaign number FL957. Owner notification date in the NHTSA record: 2 Jun 2023.
22V634000Received 19 Aug 2022. 7,561 units.
Seats / Barriers
Defect, in the NHTSA record
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."
Consequence, in the NHTSA record
Occupants may collide with the front seat barriers with more force than intended during a crash, increasing the risk of injury.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America, LLC. Manufacturer campaign number FL843. Owner notification date in the NHTSA record: 25 Aug 2023.
20V252000Received 5 May 2020. 7,979 units.
Structure / Emergency / Escape/Egress/Exit
Defect, in the NHTSA record
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."
Consequence, in the NHTSA record
Small lettering may be difficult for occupants to read, delaying the reaction time to open the exit, increasing the risk of injury.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-849. Owner notification date in the NHTSA record: 10 Sep 2020.
18V083000Received 30 Jan 2018. 606 units.
Equipment
Defect, in the NHTSA record
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
Consequence, in the NHTSA record
In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-759. Owner notification date in the NHTSA record: 11 Apr 2018.
16V326000Received 19 May 2016. 43 units.
Power Train / Automatic Transmission
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
If the heater hose fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-709. Owner notification date in the NHTSA record: 20 Sep 2016.
16V325000Received 19 May 2016. 94 units.
Power Train / Automatic Transmission
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
If the heater hose fails, hot coolant may leak inside the bus body increasing risk of injury to the passengers.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-709. Owner notification date in the NHTSA record: 20 Sep 2016.
15V564000Received 4 Sep 2015. 52 units.
Equipment Adaptive/Mobility
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
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, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-686. Owner notification date in the NHTSA record: 2 Nov 2015.
15V565000Received 4 Sep 2015. 4,334 units.
Equipment Adaptive/Mobility
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
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, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-686. Owner notification date in the NHTSA record: 2 Nov 2015.
15V432000Received 7 Jul 2015. 103,038 units.
Structure / Body / Door
Defect, in the NHTSA record
Daimler Trucks North America LLC (DTNA) is recalling certain model year 2002-2013 Thomas Built Buses Saf-T-Liner ER, 2001-2005 Saf-T-Liner Conventional, 2002-2013 Saf-T-Liner MVP-EF, 2013 Saf-T-Liner EFX, 2001-2008 Saf-T-Liner FS65, 2005-2013 Saf-T-Liner C2, 2003-2013 Saf-T-Liner HDX, 2002-2003 Saf-T-Liner MVP-ER, 2002 Vista, and 2002-2003 TL-960 school buses manufactured from February 5, 2001, through May 29, 2012. In the affected vehicles, the stem that connects the outside emergency door handle to the emergency door opening mechanism may corrode.
Consequence, in the NHTSA record
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, in the NHTSA record
DTNA will notify owners, and dealers will either replace the stems or protect them against corrosion, free of charge. Daimler issued an interim notification to owners on August 25, 2015. The recall began on December 24, 2015. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-685.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-685. Owner notification date in the NHTSA record: 24 Dec 2015.
15V425000Received 6 Jul 2015. 3,013 units.
Structure / Body / Door
Defect, in the NHTSA record
Daimler Trucks North America LLC (DTNA) is recalling certain model year 2002-2004 Thomas Built Buses Saf-T-Liner ER, 2001-2005 Saf-T-Liner Conventional, 2002-2013 Saf-T-Liner MVP-EF, 2013 Saf-T-Liner EFX, 2001-2008 Saf-T-Liner FS65, 2005-2013 Saf-T-Liner C2, 2003-2013 Saf-T-Liner HDX, 2002-2003 Saf-T-Liner MVP-ER, 2002 Vista, and 2002-2003 TL-960 non-school buses. In the affected vehicles, the stem that connects the outside emergency door handle to the emergency door opening mechanism may corrode.
Consequence, in the NHTSA record
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, in the NHTSA record
DTNA will notify owners, and dealers will either replace the stems or protect them against corrosion, free of charge. An interim notice was mailed to owners on August 28, 2015. The recall began on December 24, 2015. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-685.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-685. Owner notification date in the NHTSA record: 24 Dec 2015.
15V343000Received 3 Jun 2015. 3,200 units.
Engine and Engine Cooling / Engine
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
If engine oil comes into contact with a hot surface, there is an increased risk of a fire.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-681. Owner notification date in the NHTSA record: 12 Jun 2015.
15V344000Received 3 Jun 2015. 746 units.
Engine and Engine Cooling / Engine
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
If engine oil comes into contact with a hot surface, there is an increased risk of a fire.
Remedy, in the NHTSA record
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.
Report filed by Daimler Trucks North America LLC. Manufacturer campaign number FL-681. Owner notification date in the NHTSA record: 12 Jun 2015.
14V079000Received 21 Feb 2014. 727 units.
Engine and Engine Cooling / Engine
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
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, in the NHTSA record
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.
Report filed by Daimler Trucks North America. Manufacturer campaign number FL-660. Owner notification date in the NHTSA record: 12 Apr 2014.
14V080000Received 21 Feb 2014. 3,258 units.
Engine and Engine Cooling / Engine
Defect, in the NHTSA record
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.
Consequence, in the NHTSA record
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, in the NHTSA record
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.
Report filed by Daimler Trucks North America. Manufacturer campaign number FL-660. Owner notification date in the NHTSA record: 12 Apr 2014.
13V537000Received 30 Oct 2013. 328 units.
Seats
Defect, in the NHTSA record
Daimler Trucks North America (DTNA) is recalling certain model year 2012-2014 Thomas Built Saf-T-Liner HDX and Saf-T-Liner EFX school buses manufactured October 17, 2011, through July 2, 2013. A U-bolt intended to reinforce certain seat installations to the chassis may have been left out of the assembly process.
Consequence, in the NHTSA record
In the event of a crash, the seats may not stay mounted to the chassis, increasing the risk of injury.
Remedy, in the NHTSA record
DTNA will notify owners and dealers will install the U-bolts as required, free of charge. The recall began on December 13, 2013. Owners may contact DTNA at 1-503-745-5219. DTNA's recall number is FL-650.
Report filed by Daimler Trucks North America. Manufacturer campaign number FL-650. Owner notification date in the NHTSA record: 13 Dec 2013.
12V297000Received 28 Jun 2012. 163 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
Daimler trucks north america (dtna) is recalling certain model year 2010 through 2013 thomas built saf-t-liner ef, saf-t-liner hdx, saf-t-liner c2, and minotour non school buses manufactured from april 5, 2011, through april 23, 2012, equipped with specialty manufacturing INC. (smi) prolo roof hatches. Increased friction between the rear plate assemblies, p/no. 009327, and the nylon rear pop-up support, p/no. 008956, may result in an opening force of the prolo roof hatches that exceeds federal standard requirements. Thus, these hatches fail to conform to the requirements of federal motor vehicle safety standard no. 217, "bus emergency exits and window retention and release."
Consequence, in the NHTSA record
In the event of an emergency, egress of the bus may be hindered possibly resulting in injury to the vehicle occupants.
Remedy, in the NHTSA record
Thomas built buses will notify owners. Smi will provide service kits along with repair instructions to dealers and owners, free of charge. The safety recall began on august 22, 2012. Owners may contact thomas built buses at 1-336-889-4871 or smi at 1-800-951-7867.
Report filed by DAIMLER TRUCKS NORTH AMERICA. Manufacturer campaign number FL-630. Owner notification date in the NHTSA record: 22 Aug 2012.
12V296000Received 28 Jun 2012. 1,312 units.
Structure / Body / Roof and Pillars
Defect, in the NHTSA record
Daimler trucks north america (dtna) is recalling certain model year 2010 through 2013 thomas built saf-t-liner ef, saf-t-liner hdx, saf-t-liner c2, and minotour school buses manufactured from april 5, 2011, through april 23, 2012, equipped with specialty manufacturing INC. (smi) prolo roof hatches. Increased friction between the rear plate assemblies, p/no. 009327, and the nylon rear pop-up support, p/no. 008956, may result in an opening force of the prolo roof hatches that exceeds federal standard requirements. Thus, these hatches fail to conform to the requirements of federal motor vehicle safety standard no. 217, "bus emergency exits and window retention and release."
Consequence, in the NHTSA record
In the event of an emergency, egress of the bus may be hindered possibly resulting in injury to the vehicle occupants.
Remedy, in the NHTSA record
Thomas built buses will notify owners. Smi will provide service kits along with repair instructions to dealers and owners, free of charge. The safety recall began on august 22, 2012. Owners may contact thomas built buses at 1-336-889-4871 or smi at 1-800-951-7867.
Report filed by DAIMLER TRUCKS NORTH AMERICA. Manufacturer campaign number FL-630. Owner notification date in the NHTSA record: 22 Aug 2012.
11V480000Received 21 Sep 2011. 1,825 units.
Engine and Engine Cooling
Defect, in the NHTSA record
Daimler trucks is recalling certain model year 2011- 2012 thomas built saf-t-liner c2, saf-t-liner mvp-ef, and saf-t-liner hdx school buses manufactured from september 1, 2010, through december 31, 2010, equipped with a cummins isx or isl diesel engine. The v-band clamp assembly, part numbers q187684, q187685, and q187686, used to connect the inlet and outlet cone sections to the diesel oxidation catalyst (doc)/diesel particulate filter (dpf) include a t-bolt which can fracture and fail when subjected to stress or load. A fracture or failure of the t-bolt may cause the clamp to loosen and the inlet or outlet sections attached to the doc/dpf housing to disconnect.
Consequence, in the NHTSA record
If the inlet or outlet sections disconnect, hot exhaust gases can vent prior to exiting the tailpipe, creating the risk of combustion and a fire. If both clamps fail, there is a risk in some applications that the doc/dpf housing may detach completely, creating a road hazard.
Remedy, in the NHTSA record
Daimler trucks is working with cummins to identify and notify owners of the recall campaign. Repairs will be performed by authorized cummins dealers free of charge. The safety recall began on october 10, 2011. Owners may contact cummins at 1-812-377-5000 or daimler trucks at 1-800-547-0712.
Report filed by DAIMLER TRUCKS NORTH AMERICA. Manufacturer campaign number FL-611. Owner notification date in the NHTSA record: 10 Oct 2011.
11V474000Received 15 Sep 2011. 6,225 units.
Engine and Engine Cooling
Defect, in the NHTSA record
Daimler trucks is recalling certain model year 2011- 2012 business class m2 and coronado trucks manufactured from september 1, 2010, through december 31, 2010, equipped with a cummins isx or isl diesel engine. The v-band clamp assembly, part numbers q187684, q187685, and q187686, used to connect the inlet and outlet cone sections to the diesel oxidation catalyst (doc)/diesel particulate filter (dpf) include a t-bolt which can fracture and fail when subjected to stress or load. A fracture or failure of the t-bolt may cause the clamp to loosen and the inlet or outlet sections attached to the doc/dpf housing to disconnect.
Consequence, in the NHTSA record
If the inlet or outlet sections disconnect, hot exhaust gases can vent prior to exiting the tailpipe, creating the risk of combustion and a fire. If both clamps fail, there is a risk in some applications that the doc/dpf housing may detach completely, creating a road hazard.
Remedy, in the NHTSA record
Daimler trucks is working with cummins to identify and notify owners of the recall campaign. Repairs will be performed by authorized cummins dealers free of charge. The safety recall began on october 10, 2011. Owners may contact cummins at 1-812-377-5000 or daimler trucks at 1-800-547-0712.
Report filed by DAIMLER TRUCKS NORTH AMERICA. Manufacturer campaign number FL-611. Owner notification date in the NHTSA record: 10 Oct 2011.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

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Official channels

NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
NHTSA page of the 2012 Thomas Built Buses SAF-T-Liner HDXThe recalls, the complaints and the investigations that NHTSA shows for this model year.

Cite this page

Recall Register. 2012 Thomas Built Buses SAF-T-Liner HDX: recalls and complaints. https://recallregister.com/vehicle/thomas-built-buses/saf-t-liner-hdx/2012/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through 30 Sep 2026.

Sources

Source: NHTSA Office of Defects Investigation
Licence: US government work, public domain
Recall file through: 30 Sep 2026
Complaint file through: 30 Sep 2026
First complaint in the file: 1 Jan 1995
Manufacturer in the recall file: Daimler Trucks North America, LLC

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2012 Thomas Built Buses SAF-T-Liner HDX?: 162,117 units in 19 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Thomas Built Buses SAF-T-Liner HDX have for all model years?: NHTSA lists 81 recall campaigns for the Thomas Built Buses SAF-T-Liner HDX, model years 2002 to 2026. 19 of them name the 2012 model year.
Is an NHTSA investigation of the 2012 Thomas Built Buses SAF-T-Liner HDX open?: The NHTSA investigation file has no investigation that names this model year.