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NHTSA Campaign 21V233000

ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE

Issued by Mack Trucks, Inc. · Reported Apr 1, 2021 · 557 vehicles affected

What's wrong

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."

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.

Vehicles affected by this recall

Make Model Year Units
MACK ANTHEM (AN) 2018 557
MACK ANTHEM (AN) 2019 557
MACK ANTHEM (AN) 2020 557
MACK ANTHEM (AN) 2021 557
MACK ANTHEM (AN) 2022 557
MACK GRANITE (GR) 2018 557
MACK GRANITE (GR) 2019 557
MACK GRANITE (GR) 2020 557
MACK GRANITE (GR) 2021 557
MACK GRANITE (GR) 2022 557
MACK GRANITE (GU) 2018 557
MACK GRANITE (GU) 2019 557
MACK GRANITE (GU) 2020 557
MACK GRANITE (GU) 2021 557
MACK GRANITE (GU) 2022 557
MACK PINNACLE (CHU) 2018 557
MACK PINNACLE (CHU) 2019 557
MACK PINNACLE (CHU) 2020 557
MACK PINNACLE (CHU) 2021 557
MACK PINNACLE (CHU) 2022 557
MACK PINNACLE (CXU) 2018 557
MACK PINNACLE (CXU) 2019 557
MACK PINNACLE (CXU) 2020 557
MACK PINNACLE (CXU) 2021 557
MACK PINNACLE (CXU) 2022 557
MACK PINNACLE (PI/PN) 2018 557
MACK PINNACLE (PI/PN) 2019 557
MACK PINNACLE (PI/PN) 2020 557
MACK PINNACLE (PI/PN) 2021 557
MACK PINNACLE (PI/PN) 2022 557

Source: NHTSA Campaign 21V233000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.