Recall 13V493 affects 535 2014 Mack Pinnacle (Cxu) and Granite (Gu) trucks for loose steering-shaft pinch bolts. Repair is free at any franchised Mack dealer.
Mack is recalling 535 2014 Pinnacle (Cxu) and Granite (Gu) trucks because improperly torqued upper and lower steering shaft pinch bolts can let the steering shaft come loose. A loose steering shaft would result in loss of steering control and a higher crash risk; the Mack dealer repair will be free once available.
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What's wrong?
The steering shaft on 2014 Mack Pinnacle (Cxu) and Granite (Gu) trucks carries the driver's steering input from the steering wheel toward the steering gear. The upper and lower steering shaft pinch bolts clamp the shaft connections tight, so the shaft turns as one connected assembly when the wheel is moved.
On affected trucks, those pinch bolts were not tightened to Mack's specification during assembly. Without the right clamp load, the steering shaft joint can loosen over time. If that happens, the steering shaft no longer stays firmly secured at the joint, and steering input does not transfer as intended.
There is no warning sign before failure. An owner should not expect a light, noise, or gradual change to confirm the loose pinch bolt condition.
Who's affected?
The Pinnacle (Cxu) and Granite (Gu) are covered under the same steering system component.
| 2014 Mack Pinnacle (Cxu) | steering system |
|---|---|
| 2014 Mack Granite (Gu) | steering system |
| Units affected | 535 |
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 loose steering shaft can cause loss of steering control and increase the risk of a crash. Schedule the steering-shaft pinch-bolt inspection promptly, and use extra care until the bolts are checked. Repair will be free at any franchised Mack dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Mack Pinnacle (Cxu) or Granite (Gu) is included in this recall.
- Contact your nearest franchised Mack dealer to ask about the free steering-shaft pinch-bolt inspection and retorque.
- Reference recall number 13V493 when you call so the service desk can match the campaign.
- Bring the recall notice if Mack mailed one, plus any service paperwork tied to the steering shaft.
- Avoid driving the truck if the steering feels loose, and ask the dealer what to do before moving it.
What happens at the repair
Mack has identified the dealer repair for this recall. At the dealer, a Mack technician will inspect the upper and lower steering shaft pinch bolts and retorque them to specification where needed. That work addresses the loose steering shaft condition described in the recall. The dealer repair will be free once available for your VIN, with parts and labor covered under the campaign.
Timeline
| October 17, 2013 | NHTSA published the recall |
|---|---|
| December 12, 2013 | Owner notification mailed |
Frequently asked questions
What is recall 13V493?
Recall 13V493 covers 535 2014 Mack Pinnacle (Cxu) and Granite (Gu) trucks with steering shaft pinch bolts that were not torqued to specification. A loose steering shaft can cause loss of steering control. Mack dealers inspect the bolts and retorque them as needed for free.
What should I do if my 2014 Mack Pinnacle (Cxu) or Granite (Gu) is on this recall?
Check your VIN to confirm your specific truck is included in recall 13V493. If it is, call a franchised Mack dealer and ask for recall 13V493 or Mack recall SC0372. The dealer will inspect the steering shaft pinch bolts and retorque them as needed at no charge.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair recall defects at no cost. Mack's remedy says dealers will inspect the steering shaft pinch bolts and retorque them as necessary, free of charge, at a franchised Mack dealer.
What is the safety risk?
The risk is loss of steering control. If the steering shaft comes loose, the driver can lose control of the truck, increasing crash risk. If your VIN is included, arrange the free inspection and bolt retorque with a franchised Mack dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/13V493000 |
|---|---|
| Mack customer service | 1-336-393-2000 |
| NHTSA recall # | 13V493 |
| NHTSA recall # (full) | 13V493000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (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 →