Mack recall: Service brakes, hydraulic
Do not drive. NHTSA and the maker advise owners not to drive these vehicles until they are repaired.
What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2020-2022 Mack MD vehicles. The cotter pin that retains the brake pedal clevis pin may not have been properly installed, which could result in an unsecured brake pedal.
What could happen
An unsecured brake pedal can cause a loss of braking ability and increase the risk of a crash.
The fix
Owners are advised to not drive their vehicles until the remedy has been performed. Dealers will inspect the cotter pin installation and repair it as necessary, free of charge. Owner notification letters were mailed on September 13, 2021. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0429.
Vehicles covered
- Mack Md 2020–2022
Facts
- NHTSA recall number
- 21V684000
- Type
- Vehicle
- Filed by
- Mack Trucks, Inc.
- Reported to NHTSA
- Sep 1, 2021
- Owners notified
- Sep 13, 2021
- Vehicles or items affected
- 2,823
- Started by
- The manufacturer
- Built
- –
- Part
- Service brakes, hydraulic › Pedals and linkages
- Maker's own recall number
- SC0429
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Other recalls for the same vehicles
- Mack recall: Seat belts Oct 6, 2025
- Mack recall: Seat belts May 21, 2025
- Mack recall: Equipment May 14, 2024
- Mack recall: Parking brake Mar 1, 2024
- Mack recall: Steering Nov 7, 2023
- Mack recall: Steering Aug 30, 2023
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.