- The problem
- Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Mack MD, 2019-2025 Anthem, Granite, 2024 MD Electric, and 2025 Pinnacle trucks equipped with a passenger bench seat. The seat belt anchorage bracket may be improperly welded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."
- The risk
- An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.
- The fix
- Dealers will install a reinforcement plate, free of charge. Owner letters were mailed January 21, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0485. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning October 13, 2025.
Vehicle safety record
2021 Mack MD Problems, complaints & recalls
No owner complaints about the 2021 Mack MD have been filed with NHTSA. It is covered by 2 recalls, the latest in October 2025 for the anchorage.
NHTSA data checked
BFewer problems than a typical MD year, for its age
- Complaints
- 0
- Recalls
- 2
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2021 Mack MD recalls 2
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
Do not drive
- The problem
- 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.
- The risk
- 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.
What owners say
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No complaints about the 2021 Mack MD yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack MD: every year compared
All MD years2021 Mack MD vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 2021 Mack MD | 0 | 2 | B | |
| 2021 Mack Anthem (AN) | 2 | 5 | F | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 2021 Mack MD
Does the 2021 Mack MD have any recalls?
Yes - NHTSA lists 2 recalls for the 2021 Mack MD: anchorage (October 2025); pedals and linkages (September 2021). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 2021 Mack MD had?
None have been filed with NHTSA so far.
Is the 2021 Mack MD a reliable vehicle?
Its Safety Index is 70 out of 100 (grade B: fewer problems than a typical Mack MD year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Mack MD years have the most complaints?
2023 (1), 2024 (1), 2025 (1). See every Mack MD year compared.
What should I do if my 2021 Mack MD has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data