Recall 15V057 affects 85 2014-2015 Mack Pinnacle (Cxu) trucks with undersized air brake reservoirs. Repair is free at any franchised Mack dealer.
Mack is recalling 85 2014-2015 Pinnacle (Cxu) trucks because the brake air reservoir can be smaller than required, reducing available air for braking. The lower air volume can increase stopping distance and raise crash risk, and Mack dealers will complete the recall repair free of charge.
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What's wrong?
The air reservoir on 2014-2015 Mack Pinnacle (Cxu) trucks is the storage tank for compressed air used by the brake system. Air brakes need that reserve so pressure is available when the driver presses the brake pedal. The reservoir is supposed to match the truck's brake setup, because tank size affects how much air the system has available for braking.
On affected trucks, the brake system was built with an 88 liter air reservoir instead of the required 96 liter reservoir. Mack traced the issue to an air reservoir configuration for disc brakes being used on a truck equipped with drum brakes. That smaller tank leaves less air volume in reserve, and the lower air volume results in longer stopping distance.
There is no warning sign before failure. The filing says there are no warnings, so a driver should not expect a light, sound, or pedal change before the reduced air capacity becomes a braking problem.
Who's affected?
Both model years are tied to the same air-brake reservoir component.
| 2014 Mack Pinnacle (Cxu) | brake system |
|---|---|
| 2015 Mack Pinnacle (Cxu) | brake system |
| Units affected | 85 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the list, but the VIN decides. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Unexpected extra stopping distance increases the risk of a crash because the truck needs more room to stop. There is no warning sign before the braking problem shows up, so schedule the repair soon and leave extra following distance until it is complete. Repair is free at any franchised Mack dealer.
What should I do?
- Check your VIN to confirm your 2014-2015 Mack Pinnacle (Cxu) is included in this recall.
- Contact a franchised Mack dealer to schedule the free larger air brake reservoir installation that restores the brake air capacity.
- Bring the recall notice if Mack mailed one. If not, reference recall number 15V057 when you call.
- Drive cautiously until the repair is complete. Leave extra stopping distance and avoid hard braking when traffic allows.
- Call Mack customer service at 1-800-528-6586 with questions and reference recall number 15V057 (Mack recall SC0389).
What happens at the repair
At the dealer, a Mack technician installs a larger air brake reservoir tank so the truck has the brake air capacity specified for the recall. The replacement parts and labor are free under the recall. Mack handles owner-paid repairs before the recall notice case by case under its standard reimbursement plan. Bring repair invoices and payment records, and ask Mack customer service or the dealer how to submit them.
| Reimbursement | Reimbursement available |
|---|
Timeline
| February 3, 2015 | NHTSA published the recall |
|---|---|
| February 5, 2015 | Dealer notification began |
| February 5, 2015 | Dealer notification ended |
| March 26, 2015 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| March 26, 2015 | Interim owner notification (was planned for this date) |
| April 1, 2015 | Owner notification mailed |
Frequently asked questions
What is recall 15V057?
Recall 15V057 covers 85 2014-2015 Mack Pinnacle (Cxu) trucks with an undersized air brake reservoir tank. The lower air volume can increase stopping distance, raising crash risk. Mack dealers will install a larger air brake reservoir tank 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 15V057. If it is, contact a franchised Mack dealer to schedule installation of the larger air brake reservoir tank. Reference recall number 15V057 and Mack recall SC0389 when you call. The repair is free.
Is the recall repair free?
No. Federal recall law requires the manufacturer to repair the defect at no cost, and Mack will install the larger air brake reservoir tank free of charge at any franchised Mack dealer.
What is the safety risk?
The safety risk is longer stopping distance. These trucks have an 88 liter air reservoir where a 96 liter air reservoir is required for the air brake system. If the truck unexpectedly needs extra distance to stop, crash risk increases.
Who can I call about Mack recall 15V057?
Call Mack customer service at 1-800-528-6586. Give the representative recall number 15V057 and Mack recall SC0389, then ask whether your VIN is included and how to schedule the free air brake reservoir tank replacement at a franchised Mack dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/15V057000 |
|---|---|
| Mack customer service | 1-800-528-6586 |
| NHTSA recall # | 15V057 |
| NHTSA recall # (full) | 15V057000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 1, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →