NHTSA campaign 22V606000 · Mack campaign SC0438
Mack Recall 22V-606: Electrical Short Circuit May Cause Engine Stall
NHTSA recall 22V606000 (Mack campaign SC0438) was reported by Mack Trucks, Inc. on August 9, 2022, with 150 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mack MD for the 2023 model year. Owners were notified on September 27, 2022, 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 22V606000 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
- 22V606000 (also written 22V-606 or 22V606)
- Filed by
- Mack Trucks, Inc.
- Mack campaign number
- SC0438
- Report received
- Potentially affected
- 150 vehicles (per NHTSA)
- Component
- Engine and Engine Cooling — Engine — Engine Control Module (ECU/ECM)
- Owners notified
Repair completion: 42% (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 22V606000. 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.
Mack
Mack MD
NHTSA's recall notice
As NHTSA's recall record states it for campaign 22V606000.
Defect description
Mack Trucks, Inc. (Mack) is recalling certain 2023 MD6/7 trucks. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.
Safety consequence
An unexpected engine shut down can increase the risk of a crash.
Manufacturer remedy
Cummins will replace the ECM, free of charge. Owner notification letters were mailed on September 27, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0438.
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 22V606000
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.