Recall 21V233000: 2018–2022 Mack Granite (gr) and 4 other models
- Report received
- Apr 1, 2021
- Manufacturer
- Mack Trucks, Inc.
- Potentially affected
- 557vehicles
- Model years
- 2018–2022
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 136, "Electronic Stability Control Systems on Heavy Vehicles."
Possible consequence
A vehicle that drifts out of its lane increases the risk of a crash.
Remedy
Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 2018 Mack Anthem (an)0 complaints
- 2019 Mack Anthem (an)1 complaints
- 2020 Mack Anthem (an)4 complaints
- 2021 Mack Anthem (an)2 complaints
- 2022 Mack Anthem (an)0 complaints
- 2018 Mack Granite (gr)0 complaints
- 2019 Mack Granite (gr)2 complaints
- 2020 Mack Granite (gr)2 complaints
- 2021 Mack Granite (gr)0 complaints
- 2022 Mack Granite (gr)2 complaints
- 2018 Mack Granite (gu)1 complaints
- 2019 Mack Granite (gu)0 complaints
- 2020 Mack Granite (gu)0 complaints
- 2021 Mack Granite (gu)0 complaints
- 2022 Mack Granite (gu)0 complaints
- 2018 Mack Pinnacle (chu)0 complaints
- 2019 Mack Pinnacle (chu)0 complaints
- 2020 Mack Pinnacle (chu)1 complaints
- 2021 Mack Pinnacle (chu)0 complaints
- 2022 Mack Pinnacle (chu)0 complaints
- 2018 Mack Pinnacle (cxu)0 complaints
- 2019 Mack Pinnacle (cxu)0 complaints
- 2020 Mack Pinnacle (cxu)0 complaints
- 2021 Mack Pinnacle (cxu)0 complaints
- 2022 Mack Pinnacle (cxu)0 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.