Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software

NHTSA recall 21V346000 · announced May 13, 2021 · filed by General Motors, Llc · 196 units affected

The problem

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.

The risk

Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.

What to do

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.

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.safercar.gov.

Vehicles covered by this recall

• 2019 Chevrolet 6500
• 2019 Chevrolet Silverado 6500

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.