Key Takeaway
QUICK RELEASE VALVES/HALDEX/MERITOR WABCO by MACK TRUCKS, INC was recalled on June 1, 2009. What to do: 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...
QUICK RELEASE VALVES/HALDEX/MERITOR WABCO
Description
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.
Injuries / Consequence
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.
Products Affected
Vehicle
VehiclesRelated Recalls
Rear Brakes May Overheat
December 15, 2025
High Beams May Not Automatically Switch to Low Beams/FMVSS 108
November 20, 2025
Load Lock Clamps May Fail
November 20, 2025
ECU Malfunction May Impair Safety Systems
November 18, 2025
Headlights May Fail
November 3, 2025
Improperly Welded Seat Belt Anchor/FMVSS 210
October 6, 2025
Frequently Asked Questions
Is this recall still active?
Check the status badge at the top of this page. "Ongoing" means the recall is still active and you should follow the remedy instructions. "Completed" or "Terminated" means the recall process has concluded, though the safety issue remains relevant for any unrepaired products.
How do I check if my product is affected?
Compare the model number, lot code, serial number, or date range listed in the recall notice with the information on your product's label or packaging. For vehicles, check your VIN at NHTSA.gov/Recalls.
What remedy is available for this recall?
The listed remedy for this recall is: 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.
Where can I find the original recall notice?
This recall was issued by NHTSA. You can view the original notice using the link provided above.