2021 FREIGHTLINER M2 Problems

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Complaints Reported

Complaints by Component

POWER TRAIN

2 complaints

Meritor Transfer case has failed due to the internal coating coming off and clogging the oil pump pick up tube screen which starves the oil pump and eventually leads to bearing failure. This is a safety concern because the T-Case is the central connecting point for the drive line. When the bearings fail or seize the torque from the input shaft can cause the connecting components (u-joints, drive shafts) to shake violently and potentially fail, leaving debris in the roadway for other motorists to deal with and also having the potential to damage the trucks brake air system. This could result in an unexpected loss of control by the operator and result in a vehicle crash.

Feb 13, 2023

We have had close to 30 failures of the Meritor Transfer Case in both International and Freightliner chassis. This case specifically and of which I will add photos, is a 2021 Freightliner. The internal coating is flaking off and clogging the oil pump pick up screen which in turn starves the pump and eventually leads to bearing failure. This is a safety concern because the T-Case is the central connecting point for the drive line. When bearings fail or seize the torque from the input shaft can cause the connecting components (u-joints, Drive Shafts) to shake violently and potentially fail, leaving debris in the roadway for other motorists to deal with and also having the potential to damage the trucks brake air system. This could result in an unexpected loss of control by the operator and could result in a crash.

Feb 09, 2023

TIRES

1 complaint

The contact owns a 2021 Freightliner XC-M. The contact became aware that the VIN was included in NHTSA Campaign Numbers: 21V00H000 (ELECTRICAL SYSTEM, EXTERIOR LIGHTING) and 21V921000 (TIRES). The contact had not experienced a failure. The contact reached out to the manufacturer with questions about the recalls. The vehicle was repaired under NHTSA Campaign Number: 21V00H000 (ELECTRICAL SYSTEM, EXTERIOR LIGHTING). However, the manufacturer informed the contact that the repair for NHTSA Campaign Number: 21V921000 (TIRES) would not be completed because the recall had expired.

Feb 19, 2026

ELECTRICAL SYSTEM

1 complaint

The contact owns a 2021 Freightliner XC Line Motorhome. The contact stated that the ICU on the coach had delaminated over time and made it difficult to read. There was no warning light illuminated. The vehicle was diagnosed, and the contact was advised that the ICU panel was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 17,800.

Jul 08, 2025

VEHICLE SPEED CONTROL

1 complaint

The contact owns a 2021 Freightliner M2. The contact stated while driving at various speeds and slightly depressing the accelerator pedal, the pedal travelled down to the floorboard and was stuck, causing the vehicle to accelerate unintendedly. The contact depressed the brake pedal, but the vehicle failed to respond. The contact shifted to neutral(N), pulled over to the side of the road, and turned off the vehicle. The contact stated that upon restarting the vehicle, the vehicle operated as needed temporarily. The contact stated that the failure had caused him to pull over to the side of the road several times in one drive. The contact stated that the failure had been recurring intermittently. The contact stated that while driving 40 MPH, the failure recurred, and the vehicle accelerated unintendedly to 70 MPH. The contact stated that the vehicle was taken to the dealer several times. The dealer test-drove the vehicle and informed the contact that the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 15,000.

Mar 25, 2025

ELECTRICAL SYSTEM,ENGINE

1 complaint

The contact owns a 2021 Freightliner M2. The contact stated that while a driver was driving at an undisclosed speed, the vehicle started decelerating unintendedly and then stalled. There were no warning lights illuminated. The driver was able to coast to the side of the roadway. The driver was unable to restart the vehicle. The vehicle was towed to the dealer who stated that there was an excessive amount of oil in the engine. The dealer determined that the engine had failed and needed to be replaced. The dealer linked the failure to NHTSA Campaign Number: 20V466000 (Electrical System, Engine); but the VIN was not included in the recall, and the vehicle was out of warranty. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 151,024.

Jan 07, 2025

UNKNOWN OR OTHER

1 complaint

THIS VEHICLE IS OUTFITTED WITH A BRIDGEPORT AUTOMATED ARM GARBAGE TRUCK BODY. AN ACCIDENT RECENTLY OCCURRED ON 14 APRIL 2021 BECAUSE OF NO WARNING SENSOR ON THE FORKS WITH GRAB THE GARBAGE/RECYCLE CART TO WARN THE DRIVER THAT THE FORKS ARE NOT COMPLETELY RETRACTED AND SAFELY STOW FOR TRANSPORT. A WARNING SENSOR IS ON THE FORK BOOM TO WARN THE DRIVER THAT THE BOOM IS NOT FULLY RETRACTED HOWEVER THIS DOES NOT LET THE DRIVER KNOW THAT THE FORKS ARE STILL A POTENTIAL HAZARD. I REALIZE THAT IT IS THE DRIVER'S RESPONSIBILITY TO KNOW ALL THE ELEMENTS OF HIS TRUCK, HOWEVER DRIVER'S DO MAKE MISTAKES AND IF THE COMPANY SEES A POTENTIAL ISSUES WITH SAFETY BY INSTALLING A WARNING ALARM ON THE BOOM, SIMPLY MOVING IT TO BEHIND THE FORKS WOULD ELIMINATE ANY POSSIBLY DAMAGE/INJURY TO VEHICLES OR BICYCLIST AND PEDESTRIANS.

Apr 18, 2021

Crash: 1

4.3/5.0

86 reviews

FREIGHTLINER M2 VIN Decoder — Free VIN Check Video Guide

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Where to Find VIN for Problems Check

To check for problems and complaints on your 2021 FREIGHTLINER M2, you'll need the VIN number. Find your VIN in one of these 4 common locations.

Where to Find VIN Number on 2021 FREIGHTLINER M2 for Problems Lookup - Dashboard, Door Jamb, Engine Bay, Documents

Understanding VIN Structure for Problem Reports

Each character in your 2021 FREIGHTLINER M2 17-digit VIN helps identify specific complaints and problems affecting your vehicle model.

2021 FREIGHTLINER M2 VIN Structure for Complaint Verification - WMI, VDS, Check Digit, Model Year, Plant Code

How to Check 2021 FREIGHTLINER M2 Problems in 3 Steps

Locate Your VIN

Find the 17-character VIN on your 2021 FREIGHTLINER M2 dashboard (visible through windshield), door jamb, engine bay, or vehicle documents.

Review by Component

Browse owner-reported complaints organized by vehicle component (engine, transmission, brakes, electrical) to identify common issues and problem patterns for this model year.

Check Safety Issues

Review crash and fire incidents for each component to assess safety concerns. Contact your FREIGHTLINER dealer or report problems to NHTSA at SaferCar.gov.

Frequently Asked Questions

How many problems does the 2021 FREIGHTLINER M2 have?

The 2021 FREIGHTLINER M2 currently has 7 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.

What are the most common problems with 2021 FREIGHTLINER M2?

The most common problems reported for the 2021 FREIGHTLINER M2 are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

Where does this 2021 FREIGHTLINER M2 problem data come from?

All problem and complaint data for the 2021 FREIGHTLINER M2 comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.

How do I report problems with my 2021 FREIGHTLINER M2?

You can report safety problems with your 2021 FREIGHTLINER M2 directly to NHTSA at SaferCar.gov or call 1-888-327-4236. Your complaint helps identify patterns and may lead to recalls or investigations.

Where can I find my VIN to check problems?

Your 2021 FREIGHTLINER M2 VIN is located in 4 places: (1) Dashboard near windshield on driver's side, (2) Driver's door jamb sticker, (3) Engine bay, (4) Vehicle registration and insurance documents.

Is the 2021 FREIGHTLINER M2 reliable?

Reliability can be assessed by reviewing the number and severity of owner complaints for the 2021 FREIGHTLINER M2. Check complaints by component, crash reports, and fire incidents above to evaluate potential issues and problem patterns.