Recall 11V370 covers 475 2010-2011 Mack Chu, Cxu, and Pinnacle trucks for a defective clutch pedal shaft weld. Free Mack dealer repair.
Mack is recalling 475 2010-2011 Chu, Cxu, and Pinnacle (Cxu) heavy trucks because a defective weld can affect the shaft that holds the clutch pedal. A failed weld can let the pedal shaft loosen and the clutch pedal fall to the floor, limiting driver control and raising crash risk; the Mack dealer repair will be free once available.
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What's wrong?
The clutch pedal shaft in the 2010-2011 Mack Chu, Pinnacle (Cxu), Pinnacle (Chu), and Cxu heavy trucks is the metal shaft that supports the clutch pedal at its pivot point. When the driver presses the pedal, the shaft lets the pedal rotate and transfers that movement into the clutch system, which separates the engine from the transmission for shifting or stopping.
On affected trucks, the weld on that shaft is defective. A weak weld leaves the pedal attachment point less secure than designed, so repeated pedal force can stress the joint instead of holding the pedal solidly in place. If the weld gives way, the pedal no longer has the support it needs to operate the clutch correctly.
There is no warning sign before failure. Treat any looseness, odd pedal movement, or change in clutch pedal feel as a reason to stop using the truck and contact a Mack dealer.
Who's affected?
Covers four Mack truck models from 2010 and 2011, all tied to the same powertrain component.
| 2010 Mack Chu | powertrain |
|---|---|
| 2011 Mack Pinnacle (Cxu) | powertrain |
| 2011 Mack Pinnacle (Chu) | powertrain |
| 2010 Mack Cxu | powertrain |
| Units affected | 475 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A failed weld can let the clutch pedal shaft work loose. If the clutch pedal falls to the floor, the driver has less control of the vehicle and crash risk increases. Schedule the recall repair soon. Repair will be free at any franchised Mack dealer once available.
What should I do?
- Check your VIN to confirm your 2010-2011 Mack Chu, Pinnacle (Cxu), Pinnacle (Chu), or Cxu is included in this recall.
- Contact a franchised Mack dealer to schedule the free clutch-pedal-shaft replacement that keeps the shaft from working loose and dropping the clutch pedal to the floor.
- Bring the recall notice if you have it. If not, reference recall number 11V370 when you call.
- Avoid driving the truck if the clutch pedal feels loose or drops toward the floor before the repair is complete.
What happens at the repair
For an included VIN, the Mack dealer repair is the clutch pedal shaft replacement described in the filing. A Mack technician removes the shaft that the clutch pedal attaches to and installs a replacement shaft. The final dealer repair will be free once available for this VIN, with parts and labor covered by the recall. Ask the Mack service desk to confirm recall 11V370 against the VIN before bringing the truck in.
Timeline
| July 21, 2011 | NHTSA published the recall |
|---|---|
| August 29, 2011 | Owner notification mailed |
Frequently asked questions
What is recall 11V370?
NHTSA campaign 11V370 covers 475 2010-2011 Mack Chu, Pinnacle (Cxu), Pinnacle (Chu), and Cxu heavy trucks with a defective weld on the clutch pedal shaft. If the weld fails, the clutch pedal can fall to the floor and limit vehicle control. Mack dealers replace the clutch pedal shaft for free.
What should I do if my 2010-2011 Mack Chu, Pinnacle (Cxu), Pinnacle (Chu), or Cxu is on this recall?
Check your VIN to confirm your specific truck is included in recall 11V370. If it is, contact a franchised Mack dealer to schedule the clutch pedal shaft replacement. Reference NHTSA campaign 11V370 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost. For recall 11V370, Mack dealers replace the clutch pedal shaft free of charge, including parts and labor, at a franchised Mack dealer.
What is the safety risk in recall 11V370?
The risk is reduced driver control. NHTSA campaign 11V370 says the clutch pedal shaft weld can fail, allowing the shaft to loosen and the clutch pedal to fall to the floor. That condition increases crash risk. Confirm your VIN, then schedule the free dealer repair if your truck is included.
What if I bought this Mack truck used?
The free recall repair still applies. Recall eligibility follows the VIN, not the original owner. Check your VIN to confirm whether your specific truck is included in recall 11V370, then call a franchised Mack dealer and ask for the clutch pedal shaft replacement.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/11V370000 |
|---|---|
| Mack customer service | 1-800-866-1177 |
| NHTSA recall # | 11V370 |
| NHTSA recall # (full) | 11V370000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (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 →