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May 13, 2021 NHTSA CAMPAIGN NUMBER: 21V346000
Engine Control Module Calibrated Incorrectly
Tire failure can occur if the vehicle speed exceeds the maximum tire speed rating, increasing the risk of a crash.
NHTSA Campaign Number: 21V346
Manufacturer General Motors, LLC
Components ENGINE AND ENGINE COOLING
Potential Number of Units Affected 196
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.
Remedy
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.