Severity
Critical
CriticalActive
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…
Compiled from official public sources by the editorial team.
Verify with NHTSA →
Mack recalled Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles… - a critical-severity action.
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 critical-severity NHTSA recall-Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may no….
- Critical
- severity level
- 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
This NHTSA action (record #23V792000) was formally reported on November 22, 2023. It is classified under Critical severity, with a current status of Active. Mack is listed as the recalling firm. 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.
The documented reason for this recall is: 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, the… The specific hazard cited in the filing is: An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.. Distribution data in the federal record shows the product reached: United States. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. The remedy documented by the agency is: 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'… - consumers holding this product should act on that instruction rather than relying on general guidance.
Within the same product category the archive holds 6 closely related recalls - 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 - 7,642 vehicles recalls on record
Of 101,704 recalls in the database, 24,878 are high severity, 72,426 moderate, and 4,400 low. This recall is classified high severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Affected scope
Unknown
Related Recalls
6
0 from same agency
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 | Critical |
| 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
- This is a Class I (high-risk) recall, stop using the product immediately and follow the disposal or return instructions. 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.
Frequently Asked Questions
What product was recalled? ▼
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.". Recalled by Mack.
Why was this product recalled? ▼
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 should consumers 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.
Which agency issued this recall? ▼
This recall was issued by the NHTSA on November 22, 2023. Severity: Critical. Recall number: 23V792000.
Where was the recalled product distributed? ▼
Distribution: United States.
How do I check if my product is affected by a recall? ▼
Check the product description and recall number (23V792000) against your product. Visit the official NHTSA website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
How do I report an injury from a recalled product? ▼
Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.
Nearby Recalls in This Category
Other recalls in the same product category, useful for spotting patterns across the same defect class or manufacturer.
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Compare this recall with Yamazuki Recalls Youth All-Terrain Vehicles (ATVs) Due to R… →
Every figure on PlainRecalls is rendered directly from official FDA, CPSC and NHTSA recall records, no number is typed in by an editor. This recall: NHTSA, reported November 22, 2023. Severity classes follow each agency's own taxonomy (FDA Class I/II/III; CPSC and NHTSA by hazard type), and related-recall context is computed across the full archive. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.