NHTSA Recall 09V194000: Quick release valve (service brakes)
MACK TRUCKS, INC reported this safety recall to NHTSA on , covering an estimated 338 vehicles. It affects 2 models including the Mack Leu.
| NHTSA campaign | 09V194000 |
|---|---|
| Manufacturer campaign | SC0338 |
| Component | SERVICE BRAKES, AIR › SUPPLY › QUICK RELEASE VALVE |
| Report received | June 1, 2009 |
| Owner notification | July 13, 2009 |
| Initiated by | NHTSA Office of Defects Investigation |
Defect
Mack is recalling 338 model year 2009 mru and leu heavy duty trucks manufactured from august 20 through november 26, 2008 equipped with certain haldex quick release valves (qrv). The rubber diaphragm inside the qrv may experience delamination resulting in significant levels of air pressure leakage past and/or through the diaphragm, or the development of a bubble in the diaphragm which may trap air pressure in the valve and not allow the service brakes to release.
Safety risk
Malfunction of the air brake system could result in a vehicle crash.
Remedy
Mack will notify owners and repair the affected vehicle free of charge. The safety recall is expected to begin on or about july 13, 2009. Owners can contact mack toll-free at 1-800-866-1177.
Notes
Mack's recall campaign no. Sc0338.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 <a href=http://www.safercar.gov>http://www.safercar.gov</a> .
Vehicles covered by recall 09V194000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.