OFFICIAL CAMPAIGN FILE
NHTSA campaign 21V684000
NHTSA campaign 21V684000 covers 1 published year-and-model reports from 1 makes in this index and lists 2,823 potentially affected units campaign-wide. VIN eligibility must be checked separately.
Report received September 1, 2021 · Snapshot September 21, 2026
NHTSA records include a Do Not Drive advisory for at least one campaign associated with campaign 21V684000. Open the campaign and verify the VIN before operating or parking the vehicle.
01 / DEFECT RECORD
What NHTSA campaign 21V684000 says
Defect summary
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.
Consequence summary
An unsecured brake pedal can cause a loss of braking ability and increase the risk of a crash.
02 / CORRECTIVE ACTION
Remedy for NHTSA campaign 21V684000
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.
- Owner notification
- September 13, 2021
- Filing manufacturer
- Mack Trucks, Inc.
- Component groups
- SERVICE BRAKES, HYDRAULIC
03 / PUBLISHED VEHICLES