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Mack engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected.

NHTSA campaign 23V-792 · Reported November 22, 2023 · 650 vehicles affected

AFFECTED MODELS
Mack Anthem, Granite, LR and Terrapro
VEHICLES AFFECTED
650
REMEDY
Mack will replace the throttle pedal and update the vehicle software, free of charge.
COST
Free

The short version

Mack Trucks, Inc. reported a problem with the vehicle speed control. Here is what owners need to know.

WHAT

The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

WHY IT MATTERS

An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

WHAT TO DO

Mack will replace the throttle pedal and update the vehicle software, free of charge.

Affected vehicles

These model years are included in NHTSA campaign 23V-792.

YEAR RANGEMODEL
2023–2024Mack Anthem
2023–2024Mack Granite
2023–2024Mack LR
2023–2024Mack Terrapro

What changed

Newest first. The record shows both when the recall began and what has changed since.

  1. Recall reported to NHTSA. LATEST

Drive one of these? Check your VIN to see if your specific vehicle is affected.

Check your VIN

What this record means

Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.

Not affiliated

MyAutoRecalls is not affiliated with Mack Trucks, Inc. or the National Highway Traffic Safety Administration.