A-1 2015 Freightliner M2 CNG Vehicles: Risk of Valve Ejection and Fire
A-1 is recalling 2015 Freightliner M2 refuse trucks with CNG systems. If the valve knob is overtightened, the snap ring may fail, causing valve stem ejection and potential fire. Owners received notification letters in March 2019.
Use caution until it’s fixed
If the knob is overtightened, the valve retaining snap ring may fail and eject from the valve body, increasing the risk to injury to any person in it's path. Additionally, the unintended release of CNG can increase the risk of a fire.
What happened, in plain English
A-1 is recalling certain 2015 Freightliner M2 refuse trucks modified to run on compressed natural gas (CNG). If the valve knob is overtightened, the snap ring could fail and eject the valve stem, risking injury or fire. This affects vehicles that were sold with CNG systems. Read more at govinfonow.com/recall/1248232-a-1-2015-freightliner-m2-cng-vehicles-risk-of-valve.
Source Summary by GovInfoNow · govinfonow.com/recall/1248232-a-1-2015-freightliner-m2-cng-vehicles-risk-of-valve · Updated October 5, 2026 · Official notice: NHTSA #19V146000
Cite this page
“A-1 2015 Freightliner M2 CNG Vehicles: Risk of Valve Ejection and Fire.” GovInfoNow, updated October 5, 2026. https://govinfonow.com/recall/1248232-a-1-2015-freightliner-m2-cng-vehicles-risk-of-valve. Based on NHTSA recall #19V146000 (https://www.nhtsa.gov/recalls?nhtsaId=19V146000).
Why it’s dangerous
If the valve knob is turned more than one full turn, the snap ring inside the valve may fail. This can cause the valve stem to forcefully eject from the valve body, potentially injuring anyone nearby. Additionally, the unintended release of CNG could lead to fire.
Who’s affected
Owners of 2015 Freightliner M2 refuse trucks modified to use compressed natural gas (CNG) are affected. Drivers and passengers in these vehicles are at risk if the valve knob is overtightened.
How to tell if you have this one
Check if your 2015 Freightliner M2 refuse truck has a CNG system with a one-turn valve knob. The recall was issued for vehicles modified to run on compressed natural gas.
- Brand
A-1- Category
Vehicle
What to do — step by step
Check Notification Status
Confirm you received a notification letter from A-1 mailed in March 2019.
Contact Customer Service
Call A-1 customer service at 1-559-485-4427 to arrange for free snap ring reinforcement.
What NHTSA says to do
A-1 will notify owners, and dealers will double the snap ring strength, free of charge. Owner notification letters were mailed March 5, 2019. Owners may contact A-1 customer service at 1-559-485-4427.
How this recall unfolded
Recall timeline
Owners were mailed letters 5 days after NHTSA received the defect report.
- NHTSA received the defect report
- Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Keep exploring
Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #19V146000 (February 28, 2019)
- Plain-language summary written by qwen3:4b on October 5, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.