Manufacturer recall number

Chevrolet recall N212329840

Q: Is N212329840 the same recall as 21V496000?

Yes. N212329840 is Chevrolet’s own number for it; 21V496000 is NHTSA’s. One recall, two references.

Chevrolet calls it N212329840. NHTSA filed it as campaign 21V496000 on Jul 1, 2021: equipment on the 2017–2019 Chevrolet and GMC, 338,020 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

The full filing, 21V496000 →Check a VIN at NHTSA Chevrolet’s own VIN lookup →

What NHTSA has under this number

Source: 49 CFR Part 573 filings

NHTSA campaign	Vehicles	Component	Filed	Affected	Severity
21V496000	2017–2019 Chevrolet and GMC	Equipment	Jul 1, 2021	338,020	critical

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

The manufacturer’s own words as filed for 21V496000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. N212329840 is the number Chevrolet assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 21V496000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

NHTSA VIN recall lookup →Chevrolet’s own VIN lookup →

Common questions

Source: NHTSA, 49 CFR Part 573

Is N212329840 the same recall as 21V496000?

Yes. N212329840 is Chevrolet’s own number for it; 21V496000 is NHTSA’s. One recall, two references.

Which vehicles does N212329840 cover?

2017–2019 Chevrolet and GMC, 338,020 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the N212329840 repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.