Recall 14V207 affects 490 2014-2015 Mack Pinnacle (Cxu) trucks with a missing air-tank pressure relief valve. Repair is free at any franchised Mack dealer.
Mack is recalling 490 2014-2015 Pinnacle (Cxu) trucks because the brake system's vertical wet tank can be missing its pressure relief valve from manufacturing. Without that valve, the air tank can overpressurize and rupture, increasing the risk of injury; the dealer repair will be free once Mack makes it available.
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What's wrong?
The 2014-2015 Mack Pinnacle (Cxu) uses an air brake system, which stores compressed air in tanks and sends that air through the brake system when the driver presses the pedal. The vertical wet tank, also called the supply air tank, is one of those storage tanks. It helps hold air pressure so the brakes have the pressure they need to work as designed.
The problem is the pressure relief valve. That valve is a safety outlet on the tank. When pressure rises beyond the intended limit, the valve is supposed to open and vent excess air. On these trucks, the valve was not installed during manufacturing, so the tank lacks that pressure relief path.
There is no warning sign before failure. An owner or driver is not expected to hear, feel, or see a reliable signal that the missing valve is a problem before the brake air tank is under excess pressure.
Who's affected?
Covers the 2014 and 2015 model years for the same Pinnacle (Cxu) brake system.
| 2014 Mack Pinnacle (Cxu) | brake system |
|---|---|
| 2015 Mack Pinnacle (Cxu) | brake system |
| Units affected | 490 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific truck.
What's the safety risk?
Without a pressure relief valve, the air tank can become overpressurized and rupture, increasing the risk of injury. Schedule the repair promptly, and take any air-system concern seriously until the tank is corrected. Repair will be free at any franchised Mack dealer once available.
What should I do?
- Check your VIN to confirm your 2014-2015 Mack Pinnacle (Cxu) is included in this recall.
- Check for Mack's owner notice mailed on June 11, 2014, or use recall number 14V207 when you call.
- Contact a franchised Mack dealer to ask about the free pressure relief valve installation that protects the brake-system air tank from overpressure.
- Bring the recall notice if you have it, and give the dealer Mack recall number SC0380.
- Call Mack customer service at 1-866-298-6586 with questions before scheduling.
What happens at the repair
Mack's remedy calls for the dealer to install a pressure relief valve in the brake system's air tank. Once the dealer repair is available, a Mack technician will add the valve to the tank and confirm the air tank is fitted as required. The dealer repair will be free once available, with parts and labor covered by the recall. The remedy text does not list a separate repair time, so ask the service desk what to expect when your VIN is handled.
Timeline
| April 18, 2014 | NHTSA published the recall |
|---|---|
| June 11, 2014 | Owner notification mailed |
Frequently asked questions
What is recall 14V207?
Recall 14V207 covers 490 2014-2015 Mack Pinnacle (Cxu) trucks equipped with a vertical wet tank, also called a supply air tank, for the air brake system. The tank was built without a pressure relief valve. Mack dealers install the valve for free.
What should I do if my 2014-2015 Mack Pinnacle (Cxu) is on this recall?
Check your VIN to confirm your specific truck is included in recall 14V207. If it is, contact a franchised Mack dealer to schedule installation of the pressure relief valve in the air tank. Reference recall SC0380 or campaign 14V207 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires Mack to repair the defect at no cost, and Mack's remedy says dealers will install the pressure relief valve in the air tank free of charge. Use a franchised Mack dealer for the recall repair.
What is the safety risk?
The risk is air tank rupture from overpressure. This recall involves trucks where the air tank lacks a pressure relief valve. If pressure builds too high, the tank can rupture and increase injury risk. Mack's free repair adds the missing valve.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/14V207000 |
|---|---|
| Mack customer service | 1-866-298-6586 |
| NHTSA recall # | 14V207 |
| NHTSA recall # (full) | 14V207000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Quarterly Report (PDF)
- Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →