The defect
MACK IS RECALLING CERTAIN MODEL YEAR 2012-2013 GU, MANUFACTURED FROM DECEMBER 2, 2010, THROUGH JANUARY 18, 2012, AND EQUIPPED WITH BENDIX ATR-6 TRACTION RELAY VALVES. IN EXTREMELY COLD CONDITIONS, THESE BENDIX RELAY VALVES MAY POTENTIALLY DEVELOP INTERNAL LEAKAGE. INTERNAL LEAKAGE CAN LEAD TO AIR PRESSURE BEING DELIVERED TO AFFECTED PRIMARY OR SECONDARY BRAKE CAUSING CONTINUOUS BRAKE APPLICATION.
The risk
INADVERTENT BRAKE APPLICATION CAN CAUSE THE BRAKES TO OVERHEAT AND LEAD TO A FIRE. INADVERTENT BRAKE APPLICATION CAN CAUSE THE WHEELS TO LOCK-UP LEADING THE DRIVER TO LOSE CONTROL OF THE VEHICLE, INCREASING THE RISK OF A CRASH.
The remedy
MACK WILL NOTIFY OWNERS, AND PROVIDE A TEMPORARY REPAIR UNTIL BENDIX DEVELOPS A PERMANENT REMEDY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Granite (gu) | 2012, 2013 |
Components: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack Granite (gu) | 2012 | 0 | 13 |
| Mack Granite (gu) | 2013 | 0 | 10 |
Other service brakes, air recalls in 2012
27 of the 583 recall campaigns reported to NHTSA in 2012 concerned the service brakes, air; MACK TRUCKS, INC filed 74 campaigns in all.
| 12V565000 6 Dec 2012 | Spartan Chassis, Inc. |
| 12V530000 12 Oct 2012 | PACCAR Incorporated |
| 12V483000 3 Oct 2012 | ALTEC INDUSTRIES INC. |
| 12V467000 24 Sept 2012 | Newmar Corporation |
| 12V429000 4 Sept 2012 | SPARTAN CHASSIS, INC. |
| 12V425000 31 Aug 2012 | VERMEER MANUFACTURING COMPANY |
| 12V403000 14 Aug 2012 | NAVISTAR, INC |
| 12V298000 26 Jun 2012 | UTILITY TRAILER MANUFACTURING COMPANY |
NHTSA recalls (public domain) · all recalls of 2012