NHTSA campaign 23V792000 · Mack campaign SC0455
Mack Recall 23V-792: Delay Returning to Engine Idle/FMVSS 124
NHTSA recall 23V792000 (Mack campaign SC0455) was reported by Mack Trucks, Inc. on November 22, 2023, with 650 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mack ANTHEM (AN), Mack GRANITE (GR), Mack LR and more for model years 2023–2024. Owners were notified on February 27, 2024, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 23V792000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 23V792000 (also written 23V-792 or 23V792)
- Filed by
- Mack Trucks, Inc.
- Mack campaign number
- SC0455
- Report received
- Potentially affected
- 650 vehicles (per NHTSA)
- Component
- Vehicle Speed Control
- Owners notified
- Safety standard
- FMVSS 124
Repair completion: 69.38% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 23V792000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
NHTSA's recall notice
As NHTSA's recall record states it for campaign 23V792000.
Defect 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."
Safety consequence
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
Manufacturer 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.
Sources
Official NHTSA notice for recall 23V792000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.