Model year

2018 Thomas Built Buses Saf-T-Liner C2

Bus, diesel, 4x2, built in United States. Owner complaints on file from Apr 10, 2018 to Apr 10, 2018.

Recall campaigns covering this model year21110k vehicles or units across those campaigns
Owner complaints1Not enough peers on file
Severity index100.02018 buss average 50.0
First 24 months1Complaints in its first two years
Complaints over time

Complaints about the 2018 Thomas Built Buses Saf-T-Liner C2 peaked in 2018, with 1 filed

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

00.250.50.7512018120192020202120222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

100% of complaints about the 2018 Thomas Built Buses Saf-T-Liner C2 name structure

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

Structure
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 2018 Thomas Built Buses Saf-T-Liner C2

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 2018 Thomas Built Buses Saf-T-Liner C2
CampaignFiledSubjectComponentVehiclesRemedy
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-686Sep 27, 2019Flex-Plate/Torque Converter fasteners may have been insufficiently tightenedPowertrain618Repair 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-878Dec 10, 2018Roof adhesive that supports the roof header may not have been properly appliedStructure32Repair or modification
18V-877Dec 10, 2018Roof adhesive that supports the roof header may not have been properly appliedStructure6,031Repair or modification
18V-702Oct 5, 2018Brake caliper mounting bolts may have been insufficiently tightenedBrakes1,532Repair or modification
18V-561Aug 23, 2018In the event of a crash, the seat's foot may pull through the bolted joint at the bus floorSeats33Repair 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
18V-254Apr 19, 2018Wall mounting bracket may crack, causing the seat to not remain secured in place in the event of a crashSeats24Repair or modification
18V-253Apr 19, 2018Wall mounting bracket may crack, causing the seat to not remain secured in place in the event of a crashSeats23,102Repair or modification
18V-250Apr 19, 2018Battery power cable may have inadequate clearance between the cable and the battery hold down bracket when the battery tray is pulled out for…Electrical system90Repair or modification
18V-193Mar 26, 2018Wall mounting bracket may crack, which may cause the seat to not remain secured in place in the event of a crashSeats6Repair or modification
18V-192Mar 26, 2018Wall mounting bracket may crack, which may cause the seat to not remain secured in place in the event of a crashSeats6,606Repair or modification
18V-190Mar 26, 2018Propane fuel line may contact the j-hook body support bracket that could cause chafing resulting in a propane leakFuel system957Part replacement
17V-665Oct 19, 2017Affected vehicles are propane-powered and have propane fuel lines that may contact the transmission yoke, possibly causing a propane leakFuel system916Inspection
17V-589Sep 21, 2017Reinforcement bracket may be missing from the seats that have 3-point seat beltsSeats28Repair or modification
17V-587Sep 21, 2017Reinforcement bracket may be missing from the seats that have 3-point seat beltsSeats53Repair or modification
17V-454Jul 17, 2017In the event of a crash, the wheelchair pocket track anchorage may not adequately secure a the wheelchairEquipment32Not stated
17V-453Jul 17, 2017In the event of a crash, the wheelchair pocket track anchorage may not adequately secure a the wheelchairEquipment1,462Not stated
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2018 Thomas Built Buses Saf-T-Liner C2

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 Apr 10, 2018Failure Mar 21, 20182,100 milesColumbia, SCBodyCrash3 injured

    A 2018 THOMAS BUILT TYPE C SCHOOL BUS WAS TRAVELING AT A SPEED OF APPROXIMATELY 42 MPH ON A CITY/URBAN STREET WITH 5 PASSENGERS, PLUS THE OPERATOR ON BOARD. A TREE FELL AND STRUCK THE BUS NEAR, OR ON, THE RIGHT FRONT WINDSHIELD/ROOF AREA. THIS IMPACT CAUSED THE ENTIRE ROOF AREA TO COLLAPSE WITH SEVERE DAMAGE THROUGHOUT THE ENTIRE LENGTH OF THE BUS.

    NHTSA complaint 11084351
Source: NHTSA ODI complaints file.
Investigations

1 NHTSA investigation on file

  • PE19007 Preliminary evaluation, Suspension
    Rear Leaf Spring Fractures
    Opened Jun 18, 2019, closed Oct 17, 2023
Source: NHTSA ODI investigations file.
Service bulletins

261 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.

  • SS581032-FCCC Apr 10, 2025 · Other
    Service Solution for DEF Header Service Replacement Additional Parts (293)
  • 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
  • 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.
  • SS1023366-Detroit Sep 16, 2024 · Other
    Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
  • CumminsB6.7SSI Apr 26, 2024 · Service Bulletin/Repair Instructions
    Extended Warranty Policy for certain Cummins B6.7 engines with SSI DEF headers for EPA and CARB Emissions Reporting
  • 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
  • SBT49-008 Oct 27, 2022 · Service Bulletin/Repair Instructions
    Thomas Built Buses Service Bulletin for DEF Connector Reinforcement Caps. Some customers experience separation of the diesel exhaust fluid (DEF) lines from the connection ports in extreme cold temperatures. To prevent this, a process was developed to secure…
  • CALDDE01-001 Jun 18, 2021 · Service Bulletin/Repair Instructions
    Vibration Damper Replacement. DD5 Engines built from 4/04/2017 through 3/30/2018.
  • CALTB01-001 Oct 8, 2018 · Service Bulletin/Repair Instructions
    Customer Advisory Letter on Enabling the Stay Warm Feature
  • PAB040-2020 Nov 3, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on RH 3 POS Switch for Electric Operated Entrance Door
  • PAB036-2020 Oct 21, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Lettering Changes - Notification
  • PAB035-2020 Oct 13, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Axial Mounted Air Disc Brake Caliper for Saf-T-Liner C2
  • PAB033-2020 Sep 15, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Hankook DH37 Drive Tire/ Spare Tire
  • 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
  • PAB025-2020 Jul 16, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Jouley Warranty Update
  • PAB024-2020 Jun 1, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on MY2020 DD5 Engine Updates
  • PAB014-2020 Mar 26, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Defender Composite Stop Arm Changes
  • PAB011-2020 Mar 18, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on C2 Backup Camera Package Changes
  • 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
  • PAB006-2020 Feb 21, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Defender Electric Crossing Arm
  • PAB005-2020 Feb 21, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Alcoa Wheel Update – C2
  • PAB004-2020 Feb 10, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on ESC on C2 with PSI LPG Engine and Hydraulic Brakes
  • PAB002-2020 Jan 22, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Power Outlet
  • PAB001-2020 Jan 10, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Auto Reversing Door Update â“ C2
  • PAB049-2019 Dec 13, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Detroit DD5 Engine Reprogramming
  • PAB048-2019 Dec 6, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Data Book Update
  • PAB045-2019 Dec 3, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on LPG Update
  • PAB044-2019 Dec 2, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on DD5 Piston Standardization
  • 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
  • PAB041-2019 Nov 13, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Cummins 6.7L Update - Radiator
  • PAB040-2019 Nov 12, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Alternator Update – C2
  • PAB039-2019 Nov 1, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Suspension Auto-Reversing Door
  • PAB038-2019 Nov 1, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Freedman Seating Update
  • PAB036-2019 Sep 27, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Hendrickson Tapered Leaf Springs
  • PAB035-2019 Sep 25, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Slide – n Click Update
  • PAB034-2019 Sep 17, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Next Generation PV360
  • PAB032-2019 Aug 27, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on New Standard C2 Black Grille
  • PAB024-2019 Jul 24, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Equipment Change
  • PAB007-2019 Mar 27, 2019 · Service Bulletin/Repair Instructions
    Thomas Built Buses Product Awareness Bulletin on Electronic Stability Control
  • WI21-009 Apr 19, 2021 · Service Bulletin/Repair Instructions
    Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.
  • 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.
  • WI21-004 Feb 1, 2021 · Service Bulletin/Repair Instructions
    Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12…
  • TechTalk3496 Feb 2, 2021 · Service Bulletin/Repair Instructions
    Tech Talk continued discussion on 2018 THOMAS C2 BUS-AUTO HIGH IDLE INOP.
  • 21OEM-06 Feb 19, 2021 · Service Bulletin/Repair Instructions
    Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available. Current subscribers of DiagnosticLink 8.11 or 8.12 may upgrade to DiagnosticLink 8.13 at no cost. All DTNA Service shops & OEM locations are required to maintain the latest …
  • SS1034887 Feb 18, 2021 · Service Bulletin/Repair Instructions
    Service Solution for 8.8L Aft Fuel Harness Update. The aft fuel system harness may not be built per the schematic. This issue will not have any operability related issues. It is simply updating the harness to allow it to match how the schematic is drawn.
  • ICI21-004 Feb 15, 2021 · Service Bulletin/Repair Instructions
    Important Campaign Information Letter for Dealer Travel for Campaign Performance – TBB.
  • WI21-006 Feb 15, 2021 · Service Bulletin/Repair Instructions
    Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
  • 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…
  • TechTalk3496 Jan 29, 2021 · Service Bulletin/Repair Instructions
    Tech Talk discussion on 2018 THOMAS C2 BUS-AUTO HIGH IDLE INOP.
  • SBT35-004 Dec 23, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Buses Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The…
  • SS1034831 Dec 3, 2020 · Service Bulletin/Repair Instructions
    Service Solution for Replacement Parts to Address Exhaust Brackets
  • 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…
  • SBT54-025 Oct 27, 2020 · Service Bulletin/Repair Instructions
    Thomas Built Bus Service Bulletin for When troubleshooting powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter® is the only Daimler-approved tool for troubleshooting vehicle powernet issues.
Source: NHTSA manufacturer communications files.