Vehicles Updated 2003-07-17

MACK/FMVSS 121/CHECK VALVE

Recalled Product

Mack Trucks, Inc.

Hazard / Issue

CERTAIN HEAVY DUTY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." IMPROPER SEATING OF THE CHECK VALVE RETAINER IN THE BRASS FITTING HOUSING HAS OCCURRED. IT IS POSSIBLE FOR THE AIR BRAKE SYSTEM PRESSURE TO PUSH THE CHECK VALVE I

Issued by

Mack Trucks, Inc.

Distribution: Nationwide (United States)

Related Vehicles Recalls

Training Seat May Fail/FMVSS 207, 210

2026-03-16 · Orange EV (OEV) is recalling certain 2022-2023 T-Series Pure Electric Terminal Trucks, 2023-2025 e-TRIEVER, and 2023-2026 HUSK-e terminal trucks. The optional foldaway training seat may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number

SCM Software Error May Cause Unintented Vehicle Movement

2026-03-13 · Cummins, Inc. (Cummins) is recalling certain PD7000 Electric Drive, part number BES CM0904 EV104B. The System Control Module (SCM) software error may cause a stationary vehicle to move unexpectedly.

Wheelchair Tie-Down May Not Lock

2026-03-13 · Corp. Micro Bird, Inc. (Micro Bird) is recalling certain 2002-2015 MB II, 2008-2026 G5, and 2015-2026 T-Series transit buses. An installation error may prevent the wheelchair tie-downs from locking, leaving the wheelchair improperly secured.

Wheelchair Tie-Down May Not Lock

2026-03-13 · Micro Bird USA LLC (Micro Bird) is recalling certain 2026 G5 transit buses. An installation error may prevent the wheelchair tie-downs from locking, leaving the wheelchair improperly secured.