Chevrolet Silverado 2019: Fire Risk from Engine Block Heater Short-Circuit
GM recalls 2019 Chevrolet Silverado 2500s with potential fire risk from engine block heater short-circuit. Owners must have replacement parts installed by dealers to prevent fire.
Use caution until it’s fixed
An electrical short-circuit can increase the risk of a fire.
What happened, in plain English
GM is recalling certain 2019 Chevrolet Silverado 2500 trucks that may have an electrical short-circuit in the engine block heater cable, increasing fire risk. Owners should have the heater cord and block heater replaced by dealers to prevent potential fire. Read more at govinfonow.com/recall/1223597-chevrolet-silverado-2019-fire-risk-from-engine-block-heater-short.
Source Summary by GovInfoNow · govinfonow.com/recall/1223597-chevrolet-silverado-2019-fire-risk-from-engine-block-heater-short · Updated October 4, 2026 · Official notice: NHTSA #21V496000
Cite this page
“Chevrolet Silverado 2019: Fire Risk from Engine Block Heater Short-Circuit.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/1223597-chevrolet-silverado-2019-fire-risk-from-engine-block-heater-short. Based on NHTSA recall #21V496000 (https://www.nhtsa.gov/recalls?nhtsaId=21V496000).
Why it’s dangerous
An electrical short-circuit can occur in the engine block heater cable or its connection points, potentially causing a fire. This hazard is specific to vehicles with the optional engine block heater cord installed.
Who’s affected
Owners of 2019 Chevrolet Silverado 2500 trucks with a Duramax diesel 6.6L engine and optional engine block heater cord are affected. Drivers using these vehicles with the heater cord installed are at risk of fire.
How to tell if you have this one
Check if your 2019 Chevrolet Silverado 2500 has a Duramax diesel 6.6L engine and an optional engine block heater cord. The recall covers vehicles from 2017-2019 models.
- Brand
Chevrolet- Category
Vehicle
What to do — step by step
Contact GM Customer Service
Call 1-800-462-8782 to get details about your vehicle and the replacement process.
Have Dealers Replace Parts
Dealers will replace the engine block heater and heater cord at no cost to fix the short-circuit risk.
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
- NHTSA received the defect report
- Owner letters expected (expected, per the notice)
Dates from the agency record only; steps without a date are left out.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #21V496000 (January 7, 2021)
- Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.