Vehicle recall 11V209000 · March 31, 2011
Mack CHU, CXU and 2 more models
There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Mack trucks is recalling certain model year 2008-2011 chu and cxu heavy trucks manufactured from January 2008 through July 2010. There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification.
- Consequence
- The bolts may fail and could result in the fifth wheel coming loose causing the trailer to separate from the tractor increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the bolts as required free of charge. The safety recall began on may 30, 2011. Owners may contact mack trucks at 1-800-866-1177.
- Notes
- Mack trucks recall no. SC0351.OWNERS may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov.
Recall details
- NHTSA campaign
- 11V209000
- Reported to NHTSA
- March 31, 2011
- Filed by
- MACK TRUCKS, INC
- Manufacturer campaign
- SC0351
- Owner notification
- May 30, 2011
- Vehicles potentially affected
- 808
- Initiated by
- NHTSA’s Office of Defects Investigation
- Components
- Trailer hitches › Fifth wheel assembly
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack CHU (2009-2010): 2010, 2009
- Mack CXU (2009-2010): 2010, 2009
- Mack Pinnacle (chu) (2011): 2011
- Mack Pinnacle (cxu) (2011): 2011
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.