What does "check control message for the restraint system" mean in my BMW?

This message, often accompanied by a permanently lit red airbag warning light, indicates an issue with your vehicle's safety restraint system. According to NHTSA Manufacturer Communication 10227927, it's frequently related to a fault in the knee airbag system.

Which BMW models are affected by the knee airbag fault codes like 930949?

This issue, including fault codes such as 930949 (Knee airbag, driver: short circuit to negative terminal) and 93094F, primarily affects 2021-2022 BMW X5, X6, and X7 models.

What should I do if my BMW's airbag warning light is on?

If your "red air bag warning light lights up permanently" and you see a "check control message for the restraint system," you should contact your authorized BMW dealership immediately. They can diagnose the specific fault codes and perform the necessary repairs to ensure your restraint system is fully functional.

Is the 2022 BMW X5 manufacturer_communication issue a safety concern?

Yes, any issue with the restraint system, including the knee airbags, is a safety concern as it may compromise the vehicle's ability to protect occupants in a collision. It is crucial to have it addressed by a qualified technician.

Servis Bülteni

2021-2022 BMW X5 X6 X7 Restraint System Warning

A technical service bulletin (TSB) addresses a restraint system warning and illuminated airbag light in 2021-2022 BMW X5, X6, and X7 models, often accompanied by knee airbag fault codes like 930949 or 93094F.

David Chen2022 BMW X5April 26, 2026

2022 BMW X5 — 2022 BMW X5 manufacturer_communication — Editorial illustration generated for this article.

93094993094F93094C930952NHTSA 10227927BMW restraint system warningBMW airbag warning lightKnee airbag short circuitKnee airbag resistance too great"red air bag warning light lights up permanently"

BMW X5: 2021
BMW X6: 2021–2022
BMW X7: 2021–2022

Symptoms of Restraint System Warning

Owners of certain 2021-2022 BMW X5, X6, and X7 vehicles may observe a "check control message for the restraint system" appearing in the instrument cluster. Concurrently, the "red air bag warning light lights up permanently." These indicators point to a potential issue within the vehicle's airbag and restraint system, specifically concerning the knee airbags. This condition is addressed in NHTSA Manufacturer Communication 10227927.

Fault Codes (DTCs)

When the restraint system warning appears, the Airbag Control Unit (ACSM) may store one or more of the following diagnostic trouble codes (DTCs):

Code	Description	Module
930949	Knee airbag, driver: short circuit to negative terminal	ACSM
93094F	Knee airbag, front passenger: short circuit to negative terminal	ACSM
93094C	Knee airbag driver's side: Resistance too great	ACSM
930952	Knee airbag, front passenger: Resistance too great	ACSM

These codes indicate specific electrical faults within the knee airbag circuits, such as a short circuit to the negative terminal or excessive resistance. Addressing these codes is crucial for the proper functioning of the restraint system.

Diagnosis and Trigger Conditions

The presence of the "check control message for the restraint system" and the illuminated "red air bag warning light lights up permanently" directly correlates with the storage of the listed fault codes in the ACSM. The issue specifically targets the knee airbags for both the driver and front passenger. A technician would typically use diagnostic tools to read these codes from the ACSM to pinpoint the exact nature of the electrical fault, whether it's a short circuit or high resistance. This TSB helps in diagnosing the 2022 BMW X5 manufacturer_communication.

Manufacturer's Remedy

NHTSA Manufacturer Communication 10227927 outlines the recognition of these specific fault codes related to the knee airbag system. While the communication details the symptoms and associated DTCs, it implies that BMW has provided guidance to dealerships on how to address these issues. Owners experiencing these symptoms in their 2021-2022 BMW X5, X6, or X7 should have their vehicle inspected by an authorized BMW service center. The service center will diagnose the specific fault code and perform the necessary repairs to resolve the knee airbag issue and clear the restraint system warning. This applies to the 2022 BMW X5 manufacturer_communication.

What Owners Should Do

If you own a 2021-2022 BMW X5, X6, or X7 and observe a "check control message for the restraint system" or the "red air bag warning light lights up permanently," it is important to have your vehicle inspected promptly. Contact your authorized BMW dealership to schedule a service appointment. Provide them with details of the warnings you are seeing. The dealership will be able to diagnose the specific fault codes, such as 930949 or 93094F, and perform the appropriate repair as per BMW's technical guidance. This ensures the proper operation of your vehicle's safety systems.

Source: NHTSA Manufacturer Communication 10227927

Frequently Asked Questions

What does "check control message for the restraint system" mean in my BMW?: This message, often accompanied by a permanently lit red airbag warning light, indicates an issue with your vehicle's safety restraint system. According to NHTSA Manufacturer Communication 10227927, it's frequently related to a fault in the knee airbag system.
Which BMW models are affected by the knee airbag fault codes like 930949?: This issue, including fault codes such as 930949 (Knee airbag, driver: short circuit to negative terminal) and 93094F, primarily affects 2021-2022 BMW X5, X6, and X7 models.
What should I do if my BMW's airbag warning light is on?: If your "red air bag warning light lights up permanently" and you see a "check control message for the restraint system," you should contact your authorized BMW dealership immediately. They can diagnose the specific fault codes and perform the necessary repairs to ensure your restraint system is fully functional.
Is the 2022 BMW X5 manufacturer_communication issue a safety concern?: Yes, any issue with the restraint system, including the knee airbags, is a safety concern as it may compromise the vehicle's ability to protect occupants in a collision. It is crucial to have it addressed by a qualified technician.

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