Model year

2019 Thomas Built Buses Saf-T-Liner HDX

Bus, diesel, built in United States. Owner complaints on file from Aug 16, 2022 to Aug 16, 2022.

Recall campaigns covering this model year21142k vehicles or units across those campaigns
Owner complaints1Below the median 2019 bus
Severity index100.02019 buss average 12.5
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2019 Thomas Built Buses Saf-T-Liner HDX peaked in 2022, with 1 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.250.50.751202212023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

100% of complaints about the 2019 Thomas Built Buses Saf-T-Liner HDX name electrical system

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Electrical system
1
Powertrain
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

21 recall campaigns cover the 2019 Thomas Built Buses Saf-T-Liner HDX

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2019 Thomas Built Buses Saf-T-Liner HDX
CampaignFiledSubjectComponentVehiclesRemedy
24V-555Jul 24, 2024Emergency Exit Label lettering is too small and may be difficult to readEquipment27,494Not stated
22V-762Oct 12, 2022Exterior roof panel was manufactured with insufficient joint strengthStructure17,613Repair or modification
22V-634Aug 19, 2022Forward seat barriers may not provide sufficient protection to passengersSeats7,561Part replacement
22V-510Jul 19, 2022Passenger seat frames may crack and rotate from fatigueSeats1,806Repair or modification
22V-272Apr 22, 2022Positive battery cable may be routed improperly, allowing it to chafe against the transmission oil cooler hoses, which can cause an electrical…Electrical system138Repair or modification
22V-271Apr 22, 2022Positive battery cable may be routed improperly, allowing it to chafe against the transmission oil cooler hoses, which can cause an electrical…Electrical system2,943Repair or modification
21V-660Aug 25, 2021Power steering hose may be routed with inadequate clearance between the hose and the power cables, potentially damaging the power steering hoseSteering114Repair or modification
21V-659Aug 25, 2021Power steering hose may be routed with inadequate clearance between the hose and the power cablesSteering1,934Repair or modification
21V-462Jun 17, 2021These school buses may have been manufactured with an incorrect passenger seat configuration that does not provide the proper amount of seat back…Seats9Part replacement
21V-327May 7, 2021Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leakFuel system1,262Part replacement
20V-252May 5, 2020Lettering on the instruction label for the rear emergency exit window may be too smallEquipment7,979Label or owner notice
20V-126Mar 3, 2020Brake caliper mounting bolts may have been insufficiently tightenedBrakes581Repair or modification
19V-831Nov 19, 2019Flex-Plate/Torque Converter fasteners may have been insufficiently tightenedPowertrain30Repair or modification
19V-712Oct 4, 2019Seats may have been manufactured with styrene blocks that may not provide sufficient impact absorption in certain specific areas around the steel…Seats53,528Repair or modification
19V-550Jul 25, 2019Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable useStructure3,080Repair or modification
19V-549Jul 24, 2019Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable useStructure11Repair or modification
19V-444Jun 11, 2019Driver side rear brakes may dragBrakes11,546Repair or modification
18V-914Dec 19, 2018Affected vehicles may have loose steering tie rod arm boltsSteering73Repair or modification
18V-702Oct 5, 2018Brake caliper mounting bolts may have been insufficiently tightenedBrakes1,532Repair or modification
18V-560Aug 23, 2018Wheelchair lift positioning input cam may fail while the lift is in use, allowing the platform to travel higher than the vehicle's floor heightAdaptive equipment84Part replacement
18V-352May 29, 2018Brake caliper mounting bolts on these vehicles may be insufficiently tightened, allowing the bolts to loosenBrakes2,767Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2019 Thomas Built Buses Saf-T-Liner HDX

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

1 complaint on file, page 1 of 1.

  1. Filed Aug 16, 2022Failure Feb 7, 2022Spartanburg, SCElectrical system, Power trainFire

    It appears the battery cables were rubbing the transmission cooler lines and after an extended period caused a thermal event. it burned wiring harnesses, the DEF pump and lines and a good portion of battery cable. Had there been children on the bus at the time of the thermal event it could have been catastrophic. This vehicle has been inspected by the Manufacturer and they are covering repairs. There has been an interim/info only recall issued. FL928-A.

    NHTSA complaint 11479527
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

80 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • SS 306-TBB Apr 23, 2026 · Other
    Service Solution for HDX DEF Header Service Replacement Additional Parts
  • SS306-TBB Aug 7, 2025 · Other
    Service Solution for HDX DEF Header Service Replacement Additional Parts
  • SS293-TBB Jan 7, 2025 · Other
    Service Solution for Wiper Module TBB 61201552 replacement
  • WI24-019 Nov 11, 2024 · Warranty Program/Extension
    Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
  • Cummins B6.7 DEF Header O Oct 21, 2024 · Other
    Extended Warranty Policy for certain Cummins B6.7 engines for TBB vehicle DEF headers for EPA and CARB Emissions Reporting
  • CXA_10_17_CARB Truck Chec Oct 17, 2024 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • SS293-TBB Oct 3, 2024 · Other
    Service Solution for Wiper Module TBB 61201552 replacement
  • SS1023366-Detroit Sep 16, 2024 · Other
    Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
  • ICI24-006 Feb 20, 2024 · Service Bulletin/Repair Instructions
    Important Campaign Information letter for FL974 - Revised Bulletin & Population
  • FL974 Feb 20, 2024 · Service Bulletin/Repair Instructions
    Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Confirm' has been ad…
  • FL974 Jan 19, 2024 · Service Bulletin/Repair Instructions
    Emissions Recall: Cummins DEF Sensor Shortage
  • SS1033208 Aug 22, 2017 · Service Bulletin/Repair Instructions
    Service Solution SS 1033208TBB TM21 Dual AC alignment and not seate...
  • PAB022-2020 May 26, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Driver’s Window Update - HDX
  • PAB036-2020 Oct 21, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Lettering Changes - Notification
  • PAB028-2020 Jul 22, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Heater Hose Changes
  • PAB026-2020 Jul 17, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on National Driver’s Seat Update
  • PAB014-2020 Mar 26, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Defender Composite Stop Arm Changes
  • PAB012-2020 Mar 23, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on PV360 NS Camera – Type D
  • PAB010-2020 Mar 17, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Buy America Cummins B6.7 Engine
  • PAB009-2020 Mar 5, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Roof Top Lettering (Addendum)
  • PAB007-2020 Feb 25, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on 12V Outlets Update
  • PAB002-2020 Jan 22, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Power Outlet
  • PAB048-2019 Dec 6, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Data Book Update
  • PAB043-2019 Dec 2, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Lettering Update
  • PAB042-2019 Nov 15, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Allison 7 Year Warranty
  • PAB038-2019 Nov 1, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Freedman Seating Update
  • PAB035-2019 Sep 25, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Slide – n Click Update
  • PAB033-2019 Sep 5, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Lamp Monitors
  • PAB025-2019 Jul 25, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Air Conditioning Update, HDX
  • PAB022-2019 Jun 27, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on ESC Update EFX and HDX
  • PAB007-2019 Mar 27, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Electronic Stability Control
  • PAB004-2019 Mar 18, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Corrosion Protection EFX & HDX
  • WP21-007 Mar 22, 2021 · Service Bulletin/Repair Instructions
    Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.
  • ICI21-004 Feb 15, 2021 · Service Bulletin/Repair Instructions
    Important Campaign Information Letter for Dealer Travel for Campaign Performance – TBB.
  • WI20-014R Feb 8, 2021 · Service Bulletin/Repair Instructions
    Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimi…
  • WP20-018R Dec 8, 2020 · Service Bulletin/Repair Instructions
    Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Re…
  • WP20-018 Dec 7, 2020 · Service Bulletin/Repair Instructions
    Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot pa…
  • TechTalk4725 Sep 22, 2020 · Service Bulletin/Repair Instructions
    Tech Talk discussion about power steering fluid.
  • ICI20-022 Aug 3, 2020 · Service Bulletin/Repair Instructions
    Important Campaign Information letter announcing Dealer Travel for Campaign Performance. This letter is to announce a reimbursement available to dealers for travel to a customerÃÂâÃÂÃÂÃÂÙs location to perform a recall or field service campaign.
  • WI20-014 Aug 3, 2020 · Service Bulletin/Repair Instructions
    Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize proce…
  • WI20-012 Aug 3, 2020 · Service Bulletin/Repair Instructions
    Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the Warranty Department will be revising the Warranty Manual.
  • WI20-011 Jul 20, 2020 · Service Bulletin/Repair Instructions
    Warranty Information Letter for Detroit and TBB Parchment Format Update. In the continuing effort to standardize across brands, DTNA is pleased to announce that Detroit Diesel Corporation (Detroit) and Thomas Built Bus (TBB) parchments will be transitioned …
  • SB60-171 Jul 10, 2020 · Service Bulletin/Repair Instructions
    Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces. The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and disinfecting proce…
  • WI20-008 Apr 27, 2020 · Service Bulletin/Repair Instructions
    Warranty Information Letter for Warranty Training Online. DTNA is pleased to announce the release of new Warranty-related training videos. The videos provide Warranty content in short instructional videos that are available on demand through the AftermarkeT…
  • WP20-007 Apr 23, 2020 · Service Bulletin/Repair Instructions
    Warranty Policy Letter for Chassis Progressive Damage Policy Change. Effective for repair orders opened on or after April 27, 2020, if an Authorized Service Location installed a part which later has a warrantable failure, progressive damage and labor may be…
  • WP20-006 Apr 23, 2020 · Service Bulletin/Repair Instructions
    Warranty Policy Letter for Handling for Authorized Service Location Part Transfers. To promote 24-hour throughput and maximum efficiency, DTNA is adjusting multiple handling policies: Launching a new handling allowance for parts ordered from another Author…
  • WP20-005 Apr 22, 2020 · Service Bulletin/Repair Instructions
    Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program. DTNA is pleased to announce that handling will increase to 33% for Misc. Replacement Part type claims filed under the Over the Counter (OTC) Aftermarket Part…
  • 03.2020 Campaign Mar 17, 2020 · Service Bulletin/Repair Instructions
    Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty managers.
  • WP20-002 Mar 17, 2020 · Service Bulletin/Repair Instructions
    Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in DTNA Workshop Manuals, which states that there are very few cases in which welding a heat-treated frame rail is allowed. Therefore, before …
  • 02.2020 Campaign Mar 4, 2020 · Service Bulletin/Repair Instructions
    Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty managers
  • SB54-290 Feb 14, 2020 · Service Bulletin/Repair Instructions
    Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.
  • SS1034619 Jan 27, 2020 · Service Bulletin/Repair Instructions
    Service Solution for TBB 05G and 05K AC belt alignment improvement.This Service Solution is provided to assist Dealers/Customers in resolving the issue of AC Belt not properly aligned or excessive belt wear.
  • WI19-022 Jan 2, 2020 · Service Bulletin/Repair Instructions
    Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems
  • SS1034541 Oct 29, 2019 · Service Bulletin/Repair Instructions
    Service Solution for DD8 engine providing insufficient cab heat on Saf-T-Liner HDX vehicles
  • 19-018WI Oct 29, 2019 · Service Bulletin/Repair Instructions
    WARRANTY INFORMATION LETTER for coverage validation
  • DOC-1034471 Sep 30, 2019 · Service Bulletin/Repair Instructions
    Service Solution is provided to assist Dealers/Customers in resolving the issue when the brakes are applied, the rear side led marker lights illuminate.
  • 19CSA-12 BCT Sep 9, 2019 · Service Bulletin/Repair Instructions
    PowerNet Assessment Tool Repair Procedure
  • 19CSA-13 Sep 5, 2019 · Service Bulletin/Repair Instructions
    Service Systems Development provided document to service locations on price list reflects current charges to engine horsepower ratings for HDEP and MDEG engine platforms.
  • 19-011WP Sep 4, 2019 · Service Bulletin/Repair Instructions
    Warranty Policy Letter to communicate Detroit Return Changes
  • SPN 3563 / FMI 2 Aug 7, 2019 · Service Bulletin/Repair Instructions
    HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed.
Source: NHTSA manufacturer communications files.