Campaign 24V-924

Engine protection and inducement software may cause the engine to shut down unexpectedly

Defect summary

Daimler Trucks North America, LLC (DTNA) is recalling certain 2015-2020 Freightliner Business Class M2 emergency vehicles equipped with certain Cummins diesel engines. The engine protection and inducement software may cause the engine to shut down unexpectedly.

Consequence

An unexpected engine shutdown can delay emergency responders and increase the risk of injury.

Remedy

Cummins will update the electronic control module software and install a corrected data plate, free of charge. Owner notification letters were mailed February 5, 2025. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1012.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to nhtsa.gov.

Source: NHTSA ODI recalls file, campaign 24V924000. Text as published by NHTSA.

Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about engine and cooling on these vehicles: 1, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 24V-924
Make	Model	Model years	Complaints on this component
Freightliner	Business Class M2	2015 to 2020	1

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "NHTSA investigation" as its origin.

Before the recall

5 service bulletins on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

26V-109 Feb 24, 2026
Heater hose may rupture, which can result in hot coolant leaking inside the passenger compartment
26V-087 Feb 13, 2026
Heater hose clamps may not have been tightened properly, causing the hose to disconnect and leak heating coolant inside the passenger compartment
26V-086 Feb 13, 2026
Heater hose clamps may not have been tightened properly, causing the hose to disconnect and leak heating coolant inside the passenger compartment
23V-737 Nov 2, 2023
Rear lifting bracket that attaches to the engine cylinder head may be insufficiently secured, which can allow it to detach
22V-554 Jul 29, 2022
Engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down
22V-553 Jul 29, 2022
Engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down