2021 10 models Air Bags Recall 21V421000 (Cadillac N212338110)

NHTSA recall 21V421000 (Cadillac recall N212338110) covers about 285,622 2021 10 models vehicles (air bags), filed with NHTSA Jun 10, 2021. There is no do-not-drive or park-outside advisory.

Source: NHTSA campaign 21V421000 · Data as of Nov 6, 2026 · By CarWhere Research

285,622
vehicles affected (potential)
2021
model years
Jun 10, 2021
filed with NHTSA
None
NHTSA advisory

What's recalled

Component: Air bags (srs malfunction warning lamp/light)

General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.

The risk

The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

The remedy and its status

The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.

Status: NHTSA lists Jul 1, 2021 as the owner-notification date for this campaign.

Cadillac recall number N212338110

NHTSA lists the manufacturer's own recall number for 21V421000 as N212338110. Owner letters and dealer service departments often use this code, so a search for "N212338110 recall" refers to the same campaign.

Affected models and years

Models and model years NHTSA lists for this campaign. Not every vehicle of a listed model and year is included; check by VIN.

VehicleModel yearsMore
Cadillac CT42021—
Cadillac CT52021—
Cadillac Escalade2021All Escalade recallsYears to avoid
Cadillac Escalade ESV2021All Escalade ESV recallsYears to avoid
Buick Envision2021All Envision recalls
Chevrolet Corvette2021All Corvette recallsYears to avoid
Chevrolet Suburban2021All Suburban recallsYears to avoid
Chevrolet Tahoe2021All Tahoe recallsYears to avoid
GMC Yukon2021All Yukon recallsYears to avoid
GMC Yukon XL2021All Yukon XL recallsYears to avoid

Key dates

Report filed with NHTSA
Jun 10, 2021
Owner notification
Jul 1, 2021
Recall initiated by
the manufacturer
Filed by
General Motors, LLC

Check your VIN for 21V421000

  1. Find the 17-character VIN on the driver-side dashboard (visible through the windshield), the door-jamb sticker, or your registration.
  2. Enter it in NHTSA's free VIN recall lookup. It shows every open recall on that exact vehicle, including this one if it applies and hasn't been repaired.
  3. If 21V421000 is open, call any Cadillac dealer's service department and give them the recall number (21V421000 or N212338110). The repair is free.

Not sure of the exact model or year? Decode it first with the free VIN decoder.

Frequently asked questions

What is recall 21V421000?

NHTSA recall 21V421000 (Cadillac recall N212338110) covers about 285,622 2021 10 models vehicles (air bags), filed with NHTSA Jun 10, 2021. There is no do-not-drive or park-outside advisory. It covers certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles.

Is it safe to drive a vehicle with recall 21V421000?

NHTSA's record for 21V421000 carries no do-not-drive or park-outside advisory. The risk NHTSA lists is: "The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury." Get the free repair as soon as it is available for your vehicle.

How do I know if my vehicle is affected by 21V421000?

Only a VIN lookup can tell you. Not every vehicle of the listed models and years is included, and repaired vehicles drop off. Enter your 17-character VIN in NHTSA's free recall lookup at nhtsa.gov/recalls, or ask any Cadillac dealer to check it.

What is the fix for recall 21V421000, and is it free?

NHTSA's record says: "The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge." NHTSA lists Jul 1, 2021 as the owner-notification date for this campaign. Safety-recall repairs are done free of charge at authorized dealers.

What is the Cadillac recall number for 21V421000?

NHTSA lists the manufacturer's own recall number as N212338110. Dealers and owner letters often use that code (N212338110) instead of the NHTSA campaign number 21V421000.

Sources and method

  • NHTSA recall record for 21V421000, from NHTSA's public recall campaign database. Problem, risk and remedy text is NHTSA's own wording.
  • "Vehicles affected" is NHTSA's potential-units-affected count for the whole campaign.
  • Data as of Nov 6, 2026. NHTSA updates campaigns as manufacturers file amendments, so check the official record for the latest.

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