Vehicle recall 06V232000 · June 28, 2006
Mack CHN, CT and 5 more models
On certain trucks equipped with SR-7 bendix brake valves, the check valve inside the valve cavity may not properly set, causing internal air leakage.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- On certain trucks equipped with SR-7 bendix brake valves, the check valve inside the valve cavity may not properly set, causing internal air leakage. If the check valve does not properly seat, the resulting leakage can cause a delay in the application of the spring brakes to park the vehicle after operator pulls the dash valve button.
- Consequence
- The delayed parking brake application can occur without warning, leading to unintended vehicle rollaway increasing the risk of a crash.
- Remedy
- Dealers will inspect the valves and replace it free of charge. The recall began on August 14, 2006. Owners may contact mack trucks at 1-800-528-6586.
- Notes
- Mack trucks recall no. SC0336 (SC0313).customers can 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
- 06V232000
- Reported to NHTSA
- June 28, 2006
- Filed by
- MACK TRUCKS, INC
- Manufacturer campaign
- SC0336
- Owner notification
- August 14, 2006
- Vehicles potentially affected
- 2,587
- Initiated by
- the manufacturer
- Components
- Parking brake › Conventional › Air
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
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.