GMC SIERRA 3500 2019: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER

General Information

NHTSA Campaign ID Number: 21V496000

Make Model Year
GMC SIERRA 3500 2019
Date Owners Notified Date Received by ODI Date Added to Database
2022-04-04 2021-07-01 2021-07-01

Production Dates: 2016-07-16 - 2019-04-18

Manufacturers Involved: General Motors, LLC

Manufacturer Campaign Number: N212329840

Component: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER

Potential Number Of Units Affected: 338020

Report Initiator: MFR MFR Report

Summary

General Motors, LLC "GM" is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.

Consequence

An electrical short-circuit can increase the risk of a fire.

Remedy

Dealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19V-328, the heater cord will be replaced and rerouted, free of charge. Interim owner notifications were mailed on August 13, 2021. Owner notification letters are expected to be mailed on April 4, 2022. Customers may call GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.

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.