NHTSA recall · Reported November 22, 2023
MACK 2023-2024: VEHICLE SPEED CONTROL
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 se…
Mack recalled Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles….
MACK 2023-2024: VEHICLE SPEED CONTROL was recalled by Mack in November 22, 2023. Reason: Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may no…. Remedy: Mack will replace the throttle pedal and update the vehicle software, free of charge. Ow…. Verify recall #23V792000 with the NHTSA before acting.
The recall
Mack issued this NHTSA recall-Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may no….
- None
- agency class
- November 22, 2023
- reported
Sourced from official NHTSA enforcement records. Verify recall #23V792000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. Consumers holding this product should act on the agency's documented remedy above rather than relying on general guidance.
Within the same product category the archive holds 6 closely related recalls, 3 from NHTSA - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Vehicles recalls over time
Where this recall sits in its category - 7,783 vehicles recalls on record
Product description
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."
Reason for recall
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."
Hazard
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
Remedy, what to do
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.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | National Highway Traffic Safety Administration |
| Severity class | Not classified by agency |
| Status | Active |
| Recall number | 23V792000 |
| Date reported | November 22, 2023 |
| Date initiated | November 22, 2023 |
| Recalling firm | Mack |
| Affected scope | Not disclosed |
| Distribution | United States |
| Official source | NHTSA notice → |
Profile values are sourced directly from the official NHTSA enforcement record. Source: National Highway Traffic Safety Administration.
What to do with this recall
Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 202…
- Check the recall number (23V792000) and product description against the item you own. Search the archive
- Confirm the current status and remedy on the official NHTSA notice before acting. NHTSA notice
- Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next
This page summarizes the official NHTSA record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
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Nationwide recalls with similar severity or category timing
Vehicle and equipment notices outside this manufacturer and filing state, matched by archive severity grade and report timing.
Similar severity · nearest report date
Same archive severity grade, closest by report date among other firms and states.
Similar Vehicles · nearest report date
Same product category, closest by report date among other firms and states (deduped against the severity set).
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Methodology · Corrections · Archive as of August 2026