2021–2022 Mack (6 models) Steering Recall 22V401000 (Mack SC0437)
NHTSA recall 22V401000 (Mack recall SC0437) covers about 5,644 2021–2022 Mack (6 models) vehicles (steering), filed with NHTSA Jun 7, 2022. There is no do-not-drive or park-outside advisory.
Source: NHTSA campaign 22V401000 · Data as of Nov 6, 2026 · By CarWhere Research
What's recalled
Component: Steering
Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.
The risk
A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
The remedy and its status
Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.
Status: NHTSA lists Jul 29, 2022 as the owner-notification date for this campaign.
Mack recall number SC0437
NHTSA lists the manufacturer's own recall number for 22V401000 as SC0437. Owner letters and dealer service departments often use this code, so a search for "SC0437 recall" refers to the same campaign.
Affected models and years
Models and model years NHTSA lists for this campaign. Not every vehicle of a listed model and year is included; check by VIN.
| Vehicle | Model years | More |
|---|---|---|
| Mack Anthem (an) | 2021–2022 | — |
| Mack Granite (gr) | 2021–2022 | — |
| Mack LR | 2021–2022 | — |
| Mack Pinnacle (pi/pn) | 2021–2022 | — |
| Mack TE | 2021 | — |
| Mack Terrapro (te) | 2022 | — |
Key dates
- Report filed with NHTSA
- Jun 7, 2022
- Owner notification
- Jul 29, 2022
- Recall initiated by
- the manufacturer
- Filed by
- Mack Trucks, Inc.
Check your VIN for 22V401000
- Find the 17-character VIN on the driver-side dashboard (visible through the windshield), the door-jamb sticker, or your registration.
- Enter it in NHTSA's free VIN recall lookup. It shows every open recall on that exact vehicle, including this one if it applies and hasn't been repaired.
- If 22V401000 is open, call any Mack dealer's service department and give them the recall number (22V401000 or SC0437). The repair is free.
Not sure of the exact model or year? Decode it first with the free VIN decoder.
Frequently asked questions
What is recall 22V401000?
NHTSA recall 22V401000 (Mack recall SC0437) covers about 5,644 2021–2022 Mack (6 models) vehicles (steering), filed with NHTSA Jun 7, 2022. There is no do-not-drive or park-outside advisory. It covers certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers.
Is it safe to drive a vehicle with recall 22V401000?
NHTSA's record for 22V401000 carries no do-not-drive or park-outside advisory. The risk NHTSA lists is: "A fractured steering gear can cause a loss of steering control, increasing the risk of a crash." Get the free repair as soon as it is available for your vehicle.
How do I know if my vehicle is affected by 22V401000?
Only a VIN lookup can tell you. Not every vehicle of the listed models and years is included, and repaired vehicles drop off. Enter your 17-character VIN in NHTSA's free recall lookup at nhtsa.gov/recalls, or ask any Mack dealer to check it.
What is the fix for recall 22V401000, and is it free?
NHTSA's record says: "Dealers will replace the steering gear, free of charge." NHTSA lists Jul 29, 2022 as the owner-notification date for this campaign. Safety-recall repairs are done free of charge at authorized dealers.
What is the Mack recall number for 22V401000?
NHTSA lists the manufacturer's own recall number as SC0437. Dealers and owner letters often use that code (SC0437) instead of the NHTSA campaign number 22V401000.
Sources and method
- NHTSA recall record for 22V401000, from NHTSA's public recall campaign database. Problem, risk and remedy text is NHTSA's own wording.
- "Vehicles affected" is NHTSA's potential-units-affected count for the whole campaign.
- Data as of Nov 6, 2026. NHTSA updates campaigns as manufacturers file amendments, so check the official record for the latest.
Related recalls
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- 25V756000: 2024–2025 Mack Granite (gr) exterior lighting (Nov 3, 2025)
- 25V666000: 2019–2025 Mack (5 models) seat belts (Oct 6, 2025)
- 24V792000: 2020–2025 Mack (5 models) service brakes (Oct 23, 2024)
- 24V424000: 2025 Mack Anthem (an) & Mack Pioneer Pr (4) powertrain / transmission (Jun 9, 2024)
- 24V398000: 2025 Mack (3 models) steering (Jun 4, 2024)
- 23V713000: 2024 Mack LR steering (Oct 24, 2023)
- 23V600000: 2015–2023 Mack Granite (gr) & Mack Granite (gu) exterior lighting (Aug 25, 2023)