Noticed the steering linkage had an unusual amount of free play, Thinking it might be the bearing had failed. Bought a new part and had the one on the truck taken apart. When it was removed, it was noted that the linkage was not installed correctly. There is a safety bolt that locks the linkage and prevent it from dislodging and it was installed but not in a way to prevent separation from the steering linkage from the steering wheel. In one of the pictures where i took the linkage and attached it the way it was installed on the truck to demonstrate how it was. All in all, about 1/4" of splined shaft was holding this steering wheel in place as you can see in the wear from the parts.
The worst 2015 Freightliner Business Class M2 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Electrical2
- Engine1
- Steering1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical2
- Engine1
- Steering1
Recalls 14
Engine and engine cooling: engine: engine control module (ecu/ECM): software
- What is wrong
- 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.
- Risk
- 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.
Recall number 24V924000 · Recall details
Power train: automatic transmission: cooling unit and lines
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2014-2019 Freightliner Business Class M2 vehicles. The retaining clip that connects the transmission oil cooler line to the in-tank oil cooler may fail, possibly resulting in a transmission fluid leak.
- Risk
- If a rapid loss of transmission fluid occurs while driving, it could result in a road hazard for other motorists, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will replace the retaining clip with a collar and clamp connection, free of charge. The recall began on April 9, 2021. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-874.
Recall number 21V067000 · Recall details
Exterior lighting
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain 2006-2020 Freightliner Columbia, 2006-2021 Freightliner Business Class M2, 2007-2020 Freightliner Coronado, 2014-2021 Freightliner 122 SD, 2007 Sterling A 9500, 2006 Freightliner Argosy, 2006-2007 Sterling AT9500, 2008-2021 Freightliner Cascadia, 2006-2008 Freightliner Classic, 2006-2011 Freightliner Century Class, 2006-2010 Freightliner FLD, and 2017 Western Star 5700 vehicles. The rear reflective tape may be partially covered by the mudflap hanger bracket, which may reduce the vehicle's visibility to other drivers on the road. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
- Risk
- The vehicle's rearward visibility may be reduced, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will inspect and reposition the reflective tape to ensure that it is completely visible, as necessary, free of charge. The recall began May 29, 2020. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL848.
Recall number 20V214000 · Recall details
Steering: linkages: tie rod assembly
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2015 Freightliner Cascadia, Coronado, Business Class M2, 114SD, and Western Star 4900 trucks. In certain front axle, brake lining, and brake spider combinations, braking may cause high vibrations, resulting in early failure of the tie-rod tube.
- Risk
- A tie-rod failure would cause a disconnect between the front wheels, resulting in a loss of steering ability, thereby increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will replace the brake linings, brake spider, and tie-rod, free of charge. The recall began March 22, 2019. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL782.
Recall number 18V503000 · Recall details
Service brakes, air
- What is wrong
- Daimler Trucks North America (DTNA) is recalling certain 2015-2017 Freightliner M2 Business Class, 108SD, and 114SD vehicles. The affected vehicles might not have a required check valve installed in one of the ports of the spring brake modulation valve. Without the valve, the primary air system is not isolated from the secondary air system.
- Risk
- A rapid loss of air pressure in the secondary system could cause a similar rapid loss of pressure in the primary system, which may lead to a sudden application of the parking brakes. This could increase the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will inspect the vehicles, installing a check valve, as necessary, free of charge. The recall began on August 24, 2017. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-740.
Recall number 17V402000 · Recall details
Power train: axle hubs
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2017 Freightliner M2 Business Class, 108 SD, 114 SD, Cascadia, Coronado, Western Star 4700, 4800, and 5700 XE trucks manufactured March 15, 2013, to July 29, 2016 and equipped with Conmet aluminum non-high capacity hubs. These vehicles specify a front axle weight limit that may be greater than that of the hub capacity. As a result, the hub may fail and the wheel may separate from the axle.
- Risk
- If a wheel separates from the axle, there would be an increased risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will replace the front axle hubs, free of charge. The recall began during November 2016. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-718.
Recall number 16V634000 · Recall details
Service brakes, air: disc: caliper
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2010-2017 Freightliner M2 Business Class, 108SD, 114SD, and Columbia trucks manufactured from January 6, 2010, through February 29, 2016, equipped with certain Bendix rear disk brakes and spring suspensions. The rear disk brake caliper may have been installed incorrectly, thus allowing the caliper to contact the suspension.
- Risk
- Caliper contact with the spring suspension may reduce the braking effectiveness, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will correct the orientation of the rear brake calipers, as necessary, free of charge. The recall began on June 8, 2016. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's recall number for this campaign is FL-705.
Recall number 16V206000 · Recall details
Power train: axle assembly
- What is wrong
- Daimler Trucks North America, Inc. (DTNA) is recalling certain model year 2015-2016 Freightliner 108SD, 114SD, Business Class M2, and Western Star 4900 vehicles manufactured September 26, 2014, to November 6, 2015, and equipped with certain drive axles manufactured by Marmon-Herrington. The affected axles have hex nuts on the flange yoke that may not have been properly tightened.
- Risk
- If the hex nuts are not tightened to specification, the driveshaft may disconnect from the drive axle, resulting in a loss of propulsion and increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will inspect the hex nuts, tightening them as necessary, free of charge. The recall began on February 5, 2016. Owners may contact DTNA customer service at 1‑800‑745‑8000, or Marmon-Herrington customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL-699.
Recall number 15V859000 · Recall details
Power train: manual transmission
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain model year 2015-2016 Freightliner Cascadia, Business Class M2, 108SD, 114SD, and Western Star 4700 trucks manufactured January 4, 2015, to April 24, 2015, and equipped with Eaton Fuller FR 10-speed manual transmissions. In the affected vehicles, when the transmission shift lever is moved from reverse to neutral, the reverse gear may stay engaged. When the transmission shift lever is moved from reverse to a forward gear position, the transmission may mechanically lock because both the reverse gear and forward gear are simultaneously engaged.
- Risk
- Even though the transmission has been shifted out of reverse into neutral, the vehicle may unexpectedly move backwards, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will inspect and repair the affected transmissions if necessary, free of charge. The recall began on November 24, 2015. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-693.
Recall number 15V617000 · Recall details
Service brakes, air: disc: caliper
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2016 Freightliner Business Class M2, 108SD, and 114SD trucks manufactured April 30, 2013, to September 14, 2015. Due to incorrect positioning, the rear disk brake calipers may contact the spring suspension reducing rear brake performance.
- Risk
- A reduction in braking performance can increase the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will correct the orientation of the rear brake calipers, free of charge. The recall began on November 13, 2015. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-688.
Recall number 15V586000 · Recall details
Service brakes, air
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Cascadia, Business Class M2, 108SD, 114SD, 122SD, Coronado, Western Star 4700, and Western Star 4900 trucks manufactured October 6, 2014, to February 16, 2015, and equipped with Haldex Life Seal brake chambers. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.
- Risk
- While traveling at highway speeds, brake drag may cause loss of vehicle control, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will replace the brake chambers, free of charge. Owners were mailed interim notices at the end of May 2015. The recall began on September 25, 2015. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL676.
Recall number 15V185000 · Recall details
Service brakes, hydraulic
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2 vehicles manufactured June 4, 2014, to December 1, 2014 that are equipped with hydraulic brakes and a Bosch Hydro-Max Brake Boost Pump. Due to an incompatibility between the boost pump switch and the instrument cluster, certain instrument display brake warnings may not illuminate correctly when there is a problem with the brake system.
- Risk
- If the instrument panel doesn't display warnings, the driver may be unaware that braking force is reduced, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will install the correct brake switch, free of charge. The recall began on April 13, 2015. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-677.
Recall number 15V094000 · Recall details
Service brakes, air: disc: chamber
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2, 108SD, 114SD, 122SD, Coronado, Columbia Glider, Argosy Glider, Western Star 4700, and Western Star 4900 trucks manufactured September 17, 2014, to November 10, 2014 equipped with Haldex Life Seal brake chambers. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.
- Risk
- While traveling at highway speeds, brake drag may cause loss of vehicle control, increasing the risk of a crash.
- Remedy
- DTNA will notify owners, and dealers will inspect and repair the diaphragm if necessary, free of charge. Owners were sent an interim notice on January 27, 2015. The recall began on September 25, 2015. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-676.
Recall number 14V758000 · Recall details
Power train: clutch assembly
- What is wrong
- Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2 trucks manufactured May 27, 2014, to September 25, 2014, and equipped with certain models of Eaton Fuller 365mm clutches. Due to an incorrect clutch-release bearing component, the affected clutches may not disengage as needed.
- Risk
- The loss of clutch function could cause unintended motion or extend stopping distance, increasing the risk of vehicle crash.
- Remedy
- DTNA will notify owners, and dealers will inspect and replace the clutches, as necessary, free of charge. The recall began on December 8, 2014. Owners may contact DTNA customer service at 1‑800‑745‑8000. DTNA's number for this recall is FL-670.
Recall number 14V659000 · Recall details
See all 14 recalls for the 2015 Freightliner Business Class M2
Technical service bulletins for the 2015 Freightliner Business Class M2 633
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Service Solution for M2, 108SD, 114SD
- Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
- Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
- Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
- CX Advocate for NOx conversion low faults
- CX Advocate for turbo oil drain cracking
- Important Campaign Information letter for SF695 – Campaign Replaced by F1012
- CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test...
- CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
- Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
See all 633 bulletins for the 2015 Freightliner Business Class M2
What 2015 Freightliner Business Class M2 owners say
Most recent owner complaints, unedited.
While driving the tractor/trailer down the highway an amber warning light came on the dash. Within a matter of seconds the entire truck completely shut down while at highway speeds. The driver lost all power steering, and control of the vehicle. He was able to pull off the side of the road without injury. The vehicle went to the local freightliner dealer and it was determined that a fuse had a hairline crack which brought down the vehicle's mcm.
While driving the tractor/trailer down the interstate an amber warning light came on the dash. Within a matter of seconds the entire truck completely shut down while at highway speeds. The driver lost all power steering, and control of the vehicle. He was able to pull off the side of the road without injury. The vehicle went to the local freightliner dealer and it was determined that a fuse had failed on the truck bringing down the vehicles mcm.
Tl* the contact owns a 2015 freightliner business class m2. While driving at 45 MPH, the intake heater warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 1,500.
Compare the 2015 Freightliner Business Class M2
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Questions about the 2015 Freightliner Business Class M2
Is the 2015 Freightliner Business Class M2 reliable?
Owners have filed 4 complaints about the 2015 Freightliner Business Class M2, 2.0 times a typical Business Class M2 model year.
What is the most common problem with the 2015 Freightliner Business Class M2?
Electrical system, with 2 complaints. Next is engine (1).
How many recalls does the 2015 Freightliner Business Class M2 have?
14 recalls, covering engine and engine cooling, power train and exterior lighting.
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