Engine control module calibrated incorrectly
Defect Summary
General motors, llc (gm) is recalling certain 2019-2020 chevrolet 6500hd vehicles. the engine control module (ecm) was calibrated incorrectly, allowing the vehicle to exceed the tires' maximum speed rating of 75 mph.
Safety Consequence
Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.
Corrective Action
Dealers will update the ecm software, free of charge. owner notification letters were mailed june 7, 2021. owners may contact chevrolet customer service at 1-800-222-1020. gm's number for this recall is n202325530.
Similar Recalls
Other recalls from General Motors, Llc or involving Engine And Engine Cooling.
FAQ: Recall 21V346000
Your rights, the repair process, and what each field on this page means.
What is recall 21V346000?
NHTSA recall 21V346000 was issued by General Motors, Llc on May 13, 2021. It addresses: Engine control module calibrated incorrectly. The recall affects approximately 196 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized General Motors, Llc dealer and reference NHTSA recall ID 21V346000 or the manufacturer campaign number N202325530. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.