Recall 14V476 covers 356 2014 Grand Design Momentum 355TH, 380TH, and 385TH trailers for shearing suspension bolts. Repair is free at franchised Grand Design dealers.
Grand Design is recalling 356 2014 Momentum 355TH, Momentum 380TH, and Momentum 385TH fifth wheel trailers because suspension bolts that hold the axle springs to the frame can shear. If a spring detaches from its hanger, the trailer can lose control and increase the risk of a crash; the dealer repair will be free once Grand Design makes it available.
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What's wrong?
The 2014 Grand Design Momentum 355TH, Momentum 380TH, and Momentum 385TH fifth wheel trailers in this recall use suspension bolts to hold the axle springs to the frame hangers, also called shackles. The axle springs support the trailer and let the suspension absorb road movement instead of sending every bump directly into the frame.
On recalled trailers built with 8,000lb capacity axles, the suspension bolts can shear. When a bolt breaks, the axle spring is no longer held securely at that frame hanger or shackle. The spring can detach from the frame connection, leaving the axle out of its intended position and the suspension unable to carry load as designed.
There is no warning sign before failure. If the bolt shears while the trailer is in use, the first sign can be a sudden suspension change, unusual trailer movement, or visible separation at the spring hanger after stopping.
Who's affected?
Covers 3 Momentum trailer models from the 2014 model year, all tied to the same suspension component.
| 2014 Grand Design Momentum 355TH | suspension component |
|---|---|
| 2014 Grand Design Momentum 380TH | suspension component |
| 2014 Grand Design Momentum 385TH | suspension component |
| Units affected | 356 |
A matching 2014 Grand Design Momentum model does not confirm inclusion. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
A spring that detaches from its hanger can cause loss of trailer control and increase crash risk. Confirm the VIN before towing again. If the trailer is included, schedule service and tow cautiously only if it must be moved. Repair will be free at any franchised Grand Design dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Grand Design Momentum 355TH, Momentum 380TH, or Momentum 385TH is included in this recall.
- Contact a franchised Grand Design dealer to ask about the free suspension-bolt replacement that prevents the axle spring from detaching from the frame hanger.
- Bring the recall notice if Grand Design mailed one. If not, reference recall number 14V476 when you call.
- Avoid towing the trailer until the suspension bolts are inspected or replaced, since a detached spring can cause loss of trailer control.
- Call Grand Design customer service at 1-574-825-9679 with questions about dealer instructions.
What happens at the repair
Grand Design's remedy calls for a dealer to replace the suspension bolts with bolts that have a shorter thread depth, free of charge once the repair is available. Those bolts connect the axle springs to the trailer frame, so the repair focuses on securing the spring connection at the frame hanger and shackle. When you contact the service desk, use campaign 14V476 so the dealer can match the trailer to the correct recall parts.
Timeline
| August 4, 2014 | NHTSA published the recall |
|---|---|
| August 18, 2014 | Owner notification mailed |
Frequently asked questions
What is recall 14V476?
Recall 14V476 covers 356 2014 Grand Design Momentum 355TH, Momentum 380TH, and Momentum 385TH fifth wheel trailers built with 8,000lb capacity axles. The suspension bolts can shear, letting an axle spring detach from the frame hanger or shackle. Grand Design dealers replace the bolts for free.
What should I do if my 2014 Grand Design Momentum 355TH, Momentum 380TH, or Momentum 385TH is on this recall?
Check your VIN to confirm your specific trailer is included in recall 14V476. If it is, contact a franchised Grand Design dealer and ask for the suspension bolt replacement. Reference recall number 14V476 or Grand Design recall number 910002 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Grand Design dealers replace the suspension bolts with bolts that have a shorter thread depth free of charge under recall 14V476.
What is the safety risk in recall 14V476?
The risk is loss of control of the trailer. In recall 14V476, a suspension bolt can shear, allowing an axle spring to detach from the frame hanger or shackle and increasing crash risk. The repair path is the free suspension bolt replacement at a Grand Design dealer.
What if I bought my Grand Design Momentum used?
The free recall repair still applies. Recall eligibility follows the VIN, not the first owner. Check your VIN to confirm whether your 2014 Grand Design Momentum 355TH, Momentum 380TH, or Momentum 385TH is included, then call a Grand Design dealer with recall number 14V476.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/14V476000 |
|---|---|
| Grand Design customer service | 1-574-825-9679 |
| NHTSA recall # | 14V476 |
| NHTSA recall # (full) | 14V476000 |
Source documents
-
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 →