Use cautionVehicle recall · NHTSA · Published November 22, 2023
Mack 2023 Granite Vehicle Speed Control Recall: Risk of Loss of Vehicle Control
Mack is recalling certain 2023-2024 Granite vehicles due to potential loss of vehicle control from accelerator pedal issues. Owners must contact Mack for free throttle pedal and software replacement.
“Mack 2023 Granite Vehicle Speed Control Recall: Risk of Loss of Vehicle Control.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/81473-mack-2023-granite-vehicle-speed-control-recall-risk-of-loss. Based on NHTSA recall #23V792000 (https://www.nhtsa.gov/recalls?nhtsaId=23V792000).
Mack Trucks, Inc. recalled certain 2023-2024 Mack Anthem, Granite, LR, and TerraPro vehicles on November 22, 2023, according to the National Highway Traffic Safety Administration (NHTSA). The engine may not return to idle quickly enough, increasing the risk of a crash. Owners should contact Mack customer service at 1-800-866-1177.
How to tell if you have it
Mack Anthem (AN), 2023-2024
Mack Granite (GR), 2023-2024
Mack LR, 2023-2024
Mack TerraPro (TE), 2023-2024
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.
The hazard
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected.
Context
GovInfoNow's records show Mack Trucks, Inc. has 74 other recalls on record since 2010-07-09. Other recent recalls of similar products include Mack Truck Recall: Detached Intake Bezel Crash Risk (2026-10-01), Mack Recalls 2026-2027 Pioneer PR and Anthem AN Trucks for Brake Software Issue (2026-09-28), and Mack 2025 TerraPro Recall: Loose Steering Gearbox Risk (2026-08-06). Other recent recalls of similar products include Ford 2026 F-150 Power Train Recall: Risk of Loss of Control (2026-09-09), Chrysler Pacifica 2025: Electronic Stability Control Risk - Recall (2026-09-01), and Ford F-150 2017 Power Train Recall: Unexpected Downshifting Risk (2026-04-14).
How to tell if you have this one
Check if your vehicle is a 2023-2024 Mack Granite, AN, LR, or Terrapro model. The recall covers vehicles that may have a disconnected accelerator pedal sensor.
Brand
Mack
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Mack Customer Service
Call 1-800-866-1177 to schedule a free replacement of the throttle pedal and software update.
Official remedy
What NHTSA says 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.
How this recall unfolded
Recall timeline
Owners were mailed letters 3 months after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Mack
We’ve drafted a message you can send Mack to request your refund or repair — edit it as you like.
Subject: Recall 23V792000 — Mack 2023 Granite Vehicle Speed Control Recall: Risk of Loss of Vehicle Control
Hello,
I own a Mack 2023 Granite Vehicle Speed Control Recall: Risk of Loss of Vehicle Control that is covered by recall 23V792000 from Mack.
The official recall notice states: 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.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.