Total Complaints
2 filings
FREIGHTLINER MT55 · model year
2 NHTSA complaints, and 2 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2011FREIGHTLINERMT55 carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2011 MT55 is hybrid propulsion system with 1 filings, followed by vehicle speed control (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 2 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 38 investigation files overlapping the 2011 MT55. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
2 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| HYBRID PROPULSION SYSTEM | 1 |
| VEHICLE SPEED CONTROL | 1 |
POWER TRAIN:AUTOMATIC TRANSMISSION
Daimler Trucks North America (DTNA) is recalling certain model year 2009-2014 model year Freightliner Business Class M2 and Freightliner Custom Chassis MT45 and MT55 chassis manufactured August 27, 2008, through December 10, 2013 and equipped with Eaton hybrid automated transmissions. The software
POWER TRAIN:AUTOMATIC TRANSMISSION
DTNA IS RECALLING CERTAIN MODEL YEAR 2010 AND 2011 FCCC MT55 CHASSIS MANUFACTURED FROM JUNE 18, 2009 THROUGH APRIL 15, 2010, AND EQUIPPED WITH CERTAIN EATON HYBIRD TRANSMISSIONS WITH PARK FEATURE. THE REVERSE IDLER SHAFT MAY CONTACT THE PARK FEATURE AND THE TWO COMPONENTS MAY BIND, PREVENTING THE P
The contact owns a 2011 Freightliner MT-55. The contact stated while coming to a complete stop and depressing the brake pedal, the vehicle inadvertently attempted to accelerate. The message "Check Hybrid System" was displayed. The contact applied more pressure to the brake pedal and the vehicle started to jerk. The vehicle then responded as needed once coming at a complete stop. The contact stated that the failure had been reoccurring while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 47,000.
Mileage: 47,000
The contact owns a 2011 Freightliner MT-55. The contact stated while coming to a complete stop and depressing the brake pedal, the vehicle inadvertently attempted to accelerate. The message "Check Hybrid System" was displayed. The contact applied more pressure to the brake pedal and the vehicle started to jerk. The vehicle then responded as needed once coming at a complete stop. The contact stated that the failure had been reoccurring while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 47,000.
Mileage: 47,000
EVDM connector plate separation
Halogen Headlights May Cause Fires
Trolley bus circuit breaker fires
Rear Wheel Speed Sensor Failure
Intermittent Loss of Power Steering Assist
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.