NHTSA recall 23V792000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 23V792000 |
| Manufacturer's number | SC0455 |
| Manufacturer | Mack Trucks, Inc. |
| Reported | 2023-11-22 |
| Owners notified | 2024-02-27 |
| Component | VEHICLE SPEED CONTROL |
| Units potentially affected | 650 |
| Part numbers | 24365444 |
| Report | Quarterly report 8, for 2025 quarter 4 |
|---|---|
| Filed with NHTSA | 2026-01-05 |
| Vehicles in the campaign | 650 |
| Reported remedied | 451 (69%) |
| Reported unreachable | 0 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 4, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
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."
What can happen
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
The 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.
| 2023 MACK ANTHEM (AN) | Listed as a series or trim of this model. |
|---|---|
| 2024 MACK ANTHEM (AN) | Listed as a series or trim of this model. |
| 2023 MACK GRANITE (GR) | Listed as a series or trim of this model. |
| 2024 MACK GRANITE (GR) | Listed as a series or trim of this model. |
| 2023 MACK LR | |
| 2024 MACK LR | |
| 2023 MACK TERRAPRO (TE) | Listed as a series or trim of this model. |
| 2024 MACK TERRAPRO (TE) | Listed as a series or trim of this model. |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| CBR-2383 202406 | 2024-07-03. Service bulletin. CBR - Accelerator Pedal: Inspection Instructions |
|---|---|
| KC-2143 | 2022-07-05. Service bulletin. (Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP). |
| KC-686 | 2022-06-07. Service bulletin. (Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP) |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.