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

Air Bags — Srs Malfunction Warning Lamp/Light
Electrical System — Software

Summary

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.

Actions

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.

Documents (13)

• ISSUED Owner Notification Letter(Part 577)
• Recall Acknowledgement
• Manufacturer Notices(to Dealers,etc) - Dealer Message re N212338110 - Safety Recall Airbag Light May Not Indicate Malfunction
• Miscellaneous Document - Screen Message re GM Recall N212338110 Driver Information Center Messaging for Over-The-Air Update
• Defect Notice 573 Report
• Miscellaneous Document - Frequently Asked Questions (FAQs) for Safety Recall N212338110 Airbag Light May Not Indicate Malfunction
• Safety Bulletin - N212338110 Airbag Light May Not Indicate Malfunction
• Manufacturer Notices(to Dealers,etc) - Dealer Message - REVISION N212338110-01 Safety Recall Airbag Light May Not Indicate Malfunction Customer Letter Added and Population Expansion
• ISSUED Owner Notification Letter(Part 577)
• Safety Bulletin - Product Safety Recall N212338110 Airbag Light May Not Indicate Malfunction
• Miscellaneous Document - Frequently Asked Questions (FAQs) for Safety Recall N212338110 Airbag Light May Not Indicate Malfunction
• Recall Quarterly Report #2, 2021-4
• Recall Quarterly Report #1, 2021-3

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