- Component
- VEHICLE SPEED CONTROL
- Problem
- Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. 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."
- Risk
- An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
- Remedy
- Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.
- Notes
- 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.nhtsa.gov.
What this recall means for you
Certain 2023-2024 Mack Anthem, Granite, LR, and Terrapro trucks may have an accelerator pedal position sensor that can become disconnected. If this happens, the engine may not return to idle within 2 seconds, so the vehicle does not meet Federal Motor Vehicle Safety Standard 124 for accelerator control systems.
An engine that does not return to idle quickly enough can cause a loss of vehicle control, which increases the risk of a crash.
Mack will replace the throttle pedal and update the vehicle software at no cost to you. Owner letters were mailed February 27, 2024. To arrange the repair or ask questions, contact Mack customer service at 1-800-866-1177, referencing recall SC0455, and check your VIN for any open recalls.
Official recall notice
Affected vehicles
| Mack Anthem (An) | 20232024 |
|---|---|
| Mack Granite (Gr) | 20232024 |
| Mack LR | 20232024 |
| Mack Terrapro (Te) | 20232024 |