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2021 MACK PINNACLE (PI/PN) recalls

NHTSA campaigns received 2010 to 2026-09-30 that list the 2021 model year.

The 2021 MACK PINNACLE (PI/PN) is covered by 4 recall campaigns. Repairs are free at a dealer; check your VIN to see which are still open.

Campaign	Received	Component
24V792000	2024-10-23	Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
22V401000	2022-06-07	Steering
21V416000	2021-06-02	Wheels › Hub
21V233000	2021-04-01	Electronic Stability Control (Esc) › Control Module › Software

Each recall: problem, risk and fix

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module (24V792000, 2024-10-23)

Problem: Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Risk: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Free fix: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

Mack Trucks, Inc. · 59,338 vehicles · NHTSA record

Steering (22V401000, 2022-06-07)

Problem: 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.

Risk: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Free fix: 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.

Mack Trucks, Inc. · 5,644 vehicles · NHTSA record

Wheels › Hub (21V416000, 2021-06-02)

Problem: Mack Trucks, Inc. (Mack) is recalling certain 2021-2022 Anthem, Granite, and Pinnacle vehicles. The hubcap compression spring can cause the hubcap to separate.

Risk: A separated hubcap can create a road hazard, increasing the risk of a crash.

Free fix: Dealers will remove the hubcap, free of charge. Owner notification letters were mailed June 30, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0425.

Mack Trucks, Inc. · 307 vehicles · NHTSA record

Electronic Stability Control (Esc) › Control Module › Software (21V233000, 2021-04-01)

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."

Risk: A vehicle that drifts out of its lane increases the risk of a crash.

Free 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.

Mack Trucks, Inc. · 557 vehicles · NHTSA record

A recall covers a make, model and year range; whether one specific vehicle is affected or already repaired is confirmed by VIN at nhtsa.gov/recalls or by a dealer. Recall repairs are free. Source: NHTSA recall flat file (public domain), campaigns received since January 2010.

Other model years: 2019 · 2020 · 2024 · All MACK PINNACLE (PI/PN) recalls