Control module: softwareRecall 21V-233 · Mack vehicles
Mack Trucks, Inc. recall 21V-233 covers 557 Mack vehicles for a control module: software problem, reported to NHTSA on April 1, 2021. The manufacturer's latest report (2023 Q1) shows 61% of affected vehicles repaired.
Source: NHTSA recall 21V233000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
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."
The risk
A vehicle that drifts out of its lane increases the risk of a crash.
The fix
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.
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.safercar.gov.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
61%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.