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RECALLROADTHE CAMPAIGN RECORD

MODEL-YEAR RECALL REPORT

2020 Thomas Built Buses Saf-T-Liner C2 recalls

NHTSA's September 21, 2026 snapshot lists 16 safety recall campaigns for the 2020 Thomas Built Buses Saf-T-Liner C2, spanning 11 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 campaigns16not VIN-specific
Component groups11distinct top-level categories
Latest recordJuly 24, 2024report received
VIN resultNot checkeduse official lookup

01 / OFFICIAL CAMPAIGNS

2020 Thomas Built Buses Saf-T-Liner C2 recall campaigns

The 2020 Thomas Built Buses Saf-T-Liner C2 report contains 16 distinct NHTSA campaigns; the most recently received record is campaign 24V555000 dated July 24, 2024.
Component
EQUIPMENT
Report received
July 24, 2024
Potential units
27,494campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2019-2022 Saf-T-Liner C2, Saf-T-Liner EFX, Saf-T-Liner HDX, Minotour DRW, 2020-2022 Saf-T-Liner C2 Jouley, and Minotour SRW school buses. The Emergency Exit Label lettering is too small and may be difficult to read. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 217, "Bus Emergency Exits and Window Retention and Release.".

Why it matters: Emergency exit labels that are difficult to read can prevent or delay the use of the emergency exit, increasing the risk of injury.

Remedy

Dealers will correct the lettering, free of charge. Owner notification letters were mailed September 5, 2024. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL918.

Owner notification: September 5, 2024 · Filing manufacturer: Daimler Trucks North America, LLC

CAMPAIGN

NHTSA 23V670000

Component
STRUCTURE
Report received
October 3, 2023
Potential units
173campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC. (DTNA) is recalling certain 2019-2024 Thomas Built SAF-T-LINER C2 transit buses. The fasteners for the emergency exit door may loosen and detach, which can allow the emergency exit door to open unexpectedly.

Why it matters: An emergency exit door opening unexpectedly can increase the risk of an injury.

Remedy

Dealers will inspect and tighten the fasteners for the emergency exit door, as necessary, free of charge. Owner notification letters were mailed December 1, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL982.

Owner notification: December 1, 2023 · Filing manufacturer: Daimler Trucks North America, LLC

CAMPAIGN

NHTSA 23V669000

Component
STRUCTURE
Report received
October 3, 2023
Potential units
20,668campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC. (DTNA) is recalling certain 2019-2024 Thomas Built SAF-T-LINER C2 and 2020-2024 Thomas Built SAF-T-Liner Jouley school buses. The fasteners for the emergency exit door may loosen and detach, which can allow the emergency exit door to open unexpectedly.

Why it matters: An emergency exit door opening unexpectedly can increase the risk of an injury.

Remedy

Dealers will inspect and tighten the fasteners for the emergency exit door, as necessary, free of charge. Owner notification letters were mailed December 1, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL982.

Owner notification: December 1, 2023 · Filing manufacturer: Daimler Trucks North America, LLC

CAMPAIGN

NHTSA 22V438000

Component
ENGINE AND ENGINE COOLING
Report received
June 20, 2022
Potential units
461campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Thomas Built C2 Saf-T-Liner school buses equipped with 8.8L LPG engines. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down.

Why it matters: Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.

Remedy

Dealers will update the ECM software, free of charge. Owner notification letters were mailed October 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL942.

Owner notification: October 28, 2022 · Filing manufacturer: Daimler Trucks North America, LLC

CAMPAIGN

NHTSA 21V120000

Component
ENGINE, ENGINE AND ENGINE COOLING
Report received
February 25, 2021
Potential units
159campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2021 Thomas Built Buses Saf-T-Liner C2 school buses equipped with Cummins B6.7N engines. The engine control module software may be calibrated incorrectly, causing the engine to not limit engine speed or torque as intended for certain safety-related functions such as vehicle braking, traction and stability control, speed control, or collision avoidance.

Why it matters: If safety-related functions such as vehicle braking, stability, speed, and collision avoidance do not function properly, it can increase the risk of a crash.

Remedy

DTNA will work with the engine manufacturer Cummins Inc. to notify owners, and Cummins dealers will recalibrate the engine control module, free of charge. Owner notifications were mailed on March 29, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA number for this recall is FL-879.

Owner notification: March 29, 2021 · Filing manufacturer: Daimler Trucks North America, LLC

CAMPAIGN

NHTSA 20V126000

Component
SERVICE BRAKES, AIR
Report received
March 3, 2020
Potential units
581campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built Saf-T-Liner HDX, EFX, and C2 school buses equipped with air disc brakes. The brake caliper mounting bolts may have been insufficiently tightened.

Why it matters: Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.

Remedy

DTNA will notify owners, and dealers will inspect and repair the vehicles, free of charge. The recall began May 2, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-845.

Owner notification: May 2, 2020 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 20V113000

Component
EXTERIOR LIGHTING, OTHER
Report received
February 26, 2020
Potential units
6,010campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2020 Thomas Built Buses Saf-T-Liner C2 school buses configured with a specific Switch Hub Module (part numbers 204803 and 216434) combined with a 500k Bulk Head Module and a certain 3-position momentary switch warning light package. The Switch Hub Module (SHM) that controls the exterior warning lights and stop sign may fail, resulting in deactivation of the red warning lights, stop sign and system indicator.

Why it matters: If the exterior warning lights and stop sign indicator stop working, other drivers may inadvertently proceed driving before the school bus loading/unloading of students is complete, increasing the risk of an injury.

Remedy

DTNA will notify owners, and dealers will update the SHM, free of charge. The recall began April 15, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-844.

Owner notification: April 15, 2020 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 19V869000

Component
ENGINE AND ENGINE COOLING
Report received
December 6, 2019
Potential units
145campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2020-2021 Thomas Built Saf-T-Liner C2 school buses equipped with Detroit Diesel DD5 engines. The fan hub bolts may have been may have been insufficiently tightened.

Why it matters: The loose bolts can cause the fan to damage surrounding components and/or detach from the engine, disabling the bus and resulting in an evacuation in an uncontrolled traffic situation, thereby increasing the risk of an injury.

Remedy

DTNA will notify owners, and dealers will inspect and repair the fan hub bolts, as necessary, free of charge. The recall began January 16, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-841.

Owner notification: January 16, 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

CAMPAIGN

NHTSA 19V686000

Component
POWER TRAIN
Report received
September 27, 2019
Potential units
618campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2020 Saf-T-Liner C2 school buses equipped with Detroit DD5 engines and Allison transmissions. The Flex-Plate/Torque Converter fasteners may have been insufficiently tightened.

Why it matters: The loose bolts may lead a disabled school bus and result in a school bus evacuation procedure in an uncontrolled traffic situation, increasing the risk of an injury.

Remedy

DTNA will notify owners, and dealers will inspect and tighten the fasteners, as necessary, free of charge. The recall began November 19, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-828.

Owner notification: November 19, 2019 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 19V550000

Component
STRUCTURE
Report received
July 25, 2019
Potential units
3,080campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built Minotour, Saf-T Liner C2, Saf-T Liner EFX, and Saf-T Liner HDX school buses equipped with Safe Fleet Prolo Roof Escape hatches. Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable use.

Why it matters: If the roof hatch external handle breaks, in the event of an emergency, the hatch cannot be easily opened from outside the vehicle, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will install a new handle, free of charge. Owners were issued an interim notification on September 13, 2019. The recall began November 15, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-819.

Owner notification: November 15, 2019 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 19V549000

Component
STRUCTURE
Report received
July 24, 2019
Potential units
11campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2020 Thomas Built Minotour, 2019-2020 Saf-T Liner C2, and 2019 Saf-T Liner HDX buses equipped with Safe Fleet Roof Escape hatches. Due to a manufacturing issue, the roof hatch external handle may unexpectedly break under reasonable use.

Why it matters: If the roof hatch external handle breaks, in the event of an emergency, the hatch cannot be easily opened from outside the vehicle, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will install a new handle, free of charge. DTNA issued owners an interim notification on September 11, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-819.

Owner notification: November 15, 2019 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 19V234000

Component
STEERING
Report received
March 25, 2019
Potential units
65campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built C2 Saf-T-Liner school buses built on an FCCC chassis. The clamp for the steering gear return hose may have been improperly installed, allowing the hose to separate from the steering gear.

Why it matters: If the hose separates from the steering gear, there may be a loss of steering assist which could result in a potentially disabled school bus. If the school bus is occupied when the steering assist is lost, the occupants would need to exit the vehicle and be transferred to another vehicle, increasing the risk of injury.

Remedy

DTNA will notify owners, and dealers will inspect and install power steering hose clamps as needed, free of charge. The recall began May 10, 2019. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-813.

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

CAMPAIGN

NHTSA 19V138000

Component
SERVICE BRAKES, AIR
Report received
February 27, 2019
Potential units
259campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built Saf-T-Liner C2 school buses. The affected school buses may have been built without Anti-Lock Braking System (ABS) modules. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems.".

Why it matters: The operator may not be aware of the absence of ABS function. Unknowingly operating the vehicle without ABS function may increase risk of a crash.

Remedy

DTNA will notify owners, and dealers will inspect the buses and install any missing ABS modules, free of charge. The recall began June 26, 2019. Owners may contact DTNA customer service at 1-800-547-0712. The DTNA number for this recall is FL-809.

Owner notification: June 26, 2019 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 18V930000

Component
ELECTRICAL SYSTEM
Report received
December 21, 2018
Potential units
5,423campaign-wide
Defect and consequence

Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2020 Thomas Built Saf-T-Liner C2 school buses equipped with an optional auxiliary outlet powered by the ignition and accessory power circuits. An electrical overload on the auxiliary circuit may cause the ignition fuse to open and the engine to shut down.

Why it matters: An engine shutdown without the ability to restart increases the risk of a crash.

Remedy

DTNA has notified owners, and dealers will modify the wiring to prevent the power port from affecting the ignition circuit, free of charge. DTNA mailed an interim letter on February 1, 2019. The recall began August 27, 2019. Owners may contact Daimler Trucks North America customer service at 1-800-547-0712. DTNA's number for this recall is FL-804.

Owner notification: August 27, 2019 · Filing manufacturer: Daimler Trucks North America LLC

CAMPAIGN

NHTSA 18V929000

Component
ELECTRICAL SYSTEM
Report received
December 21, 2018
Potential units
40campaign-wide
Defect and consequence

Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2019-2020 Thomas Built Saf-T-Liner C2 buses equipped with an optional auxiliary outlet powered by the ignition and accessory power circuits. An electrical overload on the auxiliary circuit may cause the ignition fuse to open and the engine to shut down.

Why it matters: An engine shutdown without the ability to restart increases the risk of a crash.

Remedy

DTNA has notified owners, and dealers will modify the wiring to prevent the power port from affecting the ignition circuit, free of charge. DTNA mailed owners an interim letter on February 1, 2019 to notify them of the issue. The recall began on August 27, 2019. Owners may contact Daimler Trucks North America customer service at 1-800-547-0712. DTNA's number for this recall is FL-804.

Owner notification: August 27, 2019 · Filing manufacturer: Daimler Trucks North America LLC

02 / COMPONENT BREADTH

What defects are listed for the 2020 Thomas Built Buses Saf-T-Liner C2?

The most frequent component groups in 2020 Thomas Built Buses Saf-T-Liner C2 campaign records are Structure (4), Engine And Engine Cooling (3), Electrical System (2), Service Brakes, Air (2), Steering (1); these counts describe filed campaigns rather than observed failure rates.
Structure4
Engine And Engine Cooling3
Electrical System2
Service Brakes, Air2
Steering1