The Recall Desk
HighNHTSA·23V792000·Announced 2023-11-22

Mack Trucks Recalled for Accelerator Control System Sensor Failure

Mack is recalling 650 2023–2024 trucks due to a sensor defect that can prevent the engine from returning to idle quickly, risking loss of vehicle control. The company will replace the throttle pedal and update software at no cost.

What this means for you

Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.

Our severity reasoning: The recall addresses a critical failure in the accelerator control system that can prevent engines from returning to idle, creating risk of loss of vehicle control and crash. No injuries or illnesses have been reported, so the hazard is theoretical, placing this in the High category for risk-of-harm products without reported injury.

Plain-English summary

Mack Trucks, Inc. is recalling 650 2023–2024 vehicles across multiple models (Anthem, Granite, LR, and Terrapro) due to a defect in the accelerator control system. The accelerator pedal position sensor can become disconnected, preventing the engine from returning to idle within 2 seconds after the driver releases the pedal.

This defect violates Federal Motor Vehicle Safety Standard No. 124 (Accelerator Control Systems). When the engine does not return to idle quickly, drivers may lose vehicle control, significantly increasing the risk of a crash.

Mack will replace the throttle pedal and update the vehicle software at no cost to owners. Owner notification letters were mailed on February 27, 2024. Owners can contact Mack customer service at 1-800-866-1177 (Mack recall number SC0455) or the NHTSA Vehicle Safety Hotline at 1-888-327-4236 for more information.

The recalled product

Product
2023 MACK ANTHEM (AN)
Brand
MACK
Manufacturer
Mack Trucks, Inc.
Category
Vehicle
Hazard
  • accelerator-control-failure
  • loss-of-vehicle-control
Affected units
650

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (4)

  • ANTHEM (AN)
  • GRANITE (GR)
  • LR
  • TERRAPRO (TE)

Distribution

Distributed nationwide across the United States.

Related recalls

Same brand · MACK

Same category