IllustrationThe DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
2018 Freightliner M2 Business Class
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all M2 Business Class years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 0 of 5 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
5 reportsThe DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS
Official recalls
219V370000 · Service Brakes, Air:supply:reservoir/tank
May 14, 2019
Daimler Trucks North America LLC (DTNA) is recalling certain 2004-2019 Freightliner 108SD, 114SD, 122SD, Cascadia, Columbia, Classic, FL80, FLD 120SD, Business Class M2, Western Star 4700, 4900, 6900, Sterling Acterra, L7500, LT7500, L8500, LT8500, L9500, and LT9500 vehicles. The vehicles may have an insufficient service brake air reservoir capacity. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
Consequence & remedy
Consequence: An insufficient air reservoir volume may reduce brake effectiveness, increasing the risk of crash.
Remedy: DTNA will notify owners, and dealers will add air reservoir capacity to the affected vehicles. Owner letters were mailed on November 29, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-815.
17V452000 · Equipment
Jul 17, 2017
Daimler Trucks North America (DTNA) is recalling certain 2018 Freightliner Cascadia, M2 Business Class, 114SD, and 122SD trucks, and Western Star 4700 and 5700 trucks. These vehicles have tow hooks used for recovery purposes that may fail during use.
Consequence & remedy
Consequence: If the tow hook fails without warning during a recovery operation, the sudden release of the vehicle may increase the risk of injury.
Remedy: DTNA will notify owners, and dealers will inspect the vehicle's tow hooks and, depending on their production date codes, will replace them, free of charge. The recall began on September 14, 2017. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-742.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.