The defect
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.
The risk
THE DELAYED PARKING BRAKE APPLICATION CAN OCCUR WITHOUT WARNING, LEADING TO UNINTENDED VEHICLE ROLLAWAY INCREASING THE RISK OF A CRASH.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack CHN | 2007 |
| Mack CT | 2007 |
| Mack CTP | 2007 |
| Mack CV | 2007 |
| Mack CXN | 2007 |
| Mack LE | 2007 |
| Mack MR | 2007 |
Components: PARKING BRAKE:CONVENTIONAL:AIR
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 CHN | 2007 | 1 | 12 |
| Mack CT | 2007 | 0 | 7 |
| Mack CTP | 2007 | 0 | 6 |
| Mack CV | 2007 | 0 | 8 |
| Mack CXN | 2007 | 0 | 14 |
| Mack LE | 2007 | 0 | 1 |
| Mack MR | 2007 | 0 | 3 |
Other parking brake recalls in 2006
11 of the 490 recall campaigns reported to NHTSA in 2006 concerned the parking brake; MACK TRUCKS, INC filed 74 campaigns in all.
| 06V436000 9 Nov 2006 | HINO MOTORS SALES U.S.A., INC. |
| 06V409000 26 Oct 2006 | MITSUBISHI FUSO TRUCK OF AMERICA, INC. |
| 06V254000 13 Jul 2006 | GENERAL MOTORS CORP. |
| 06V243000 11 Jul 2006 | PREVOST CARS, INC. |
| 06V231000 28 Jun 2006 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
| 06V221000 19 Jun 2006 | OSHKOSH TRUCK CORPORATION |
| 06V205000 12 Jun 2006 | FREIGHTLINER LLC |
| 06V202000 8 Jun 2006 | BLUE BIRD BODY COMPANY |
NHTSA recalls (public domain) · all recalls of 2006