2021-2022 BMW X3 X4 Airbag Warning Light TSB
A Technical Service Bulletin (TSB) addresses a 'check control message for the restraint system' and a red airbag warning light in 2021-2022 BMW X3 and X4 models. This issue is linked to fault codes 930949 and 93094F in the airbag control unit.
Marcus Weber2022 BMW X3
Also applies to
- BMW X3
- 2021
- BMW X4
- 2021–2022
Symptoms
Owners of 2021-2022 BMW X3 and X4 vehicles may notice a "check control message for the restraint system" appearing in the instrument cluster. Concurrently, the "red air bag warning light lights up permanently" on the dashboard. This indicates a potential issue with the vehicle's restraint system.
Fault Codes / DTCs
When this issue occurs, the following fault codes may be stored in the Airbag Control Unit (ACSM):
| Code | Description |
|---|---|
| 930949 | Knee airbag, driver: short circuit to negative terminal |
| 93094F | Knee airbag, front passenger: short circuit to negative terminal |
These codes specifically point to a short circuit condition in either the driver's or front passenger's knee airbag.
Diagnosis
The presence of a "check control message for the restraint system" along with the illuminated red airbag warning light, coupled with the stored fault codes 930949 or 93094F in the ACSM, confirms this specific issue. Technicians will use diagnostic tools to read the fault memory of the airbag control unit to identify these codes.
Repair Procedure Summary
The provided manufacturer communication indicates the symptoms and associated fault codes for this restraint system issue. However, specific repair steps, part numbers, or required tools are not detailed in the summary information available. A BMW dealership will have access to the full Technical Service Bulletin (TSB) which outlines the precise diagnostic and repair procedures to resolve the short circuit in the knee airbag.
Owner Action
If you experience a "check control message for the restraint system" or see the red airbag warning light illuminated in your 2021-2022 BMW X3 or X4, it is important to have your vehicle inspected. Contact your authorized BMW dealership to schedule a service appointment. They can diagnose the issue, confirm the presence of fault codes 930949 or 93094F, and perform the necessary repairs according to the manufacturer's guidelines. Addressing the BMW X3 airbag warning promptly ensures the proper functioning of your vehicle's safety systems.
NHTSA ID: 10218381
Frequently Asked Questions
- What does the "check control message for the restraint system" mean in my BMW X3?
- This message, often accompanied by a red airbag warning light, indicates a detected issue with your vehicle's airbag or restraint system. For 2021-2022 BMW X3 and X4 models, it's frequently linked to a short circuit in a knee airbag.
- What are the fault codes associated with the BMW X3 airbag warning?
- The specific fault codes often found in the Airbag Control Unit (ACSM) for this issue are 930949, indicating a short circuit in the driver's knee airbag, and 93094F, for a short circuit in the front passenger's knee airbag.
- What should I do if my 2021-2022 BMW X3 or X4 has an airbag warning light?
- If you see the red airbag warning light or the "check control message for the restraint system," you should contact your authorized BMW dealership immediately. They can diagnose the underlying cause, including checking for fault codes like 930949 or 93094F, and perform the necessary repairs.
- Is this BMW X3 airbag warning issue a recall?
- This specific issue is addressed by a Technical Service Bulletin (TSB), NHTSA ID 10218381, which is a manufacturer communication to dealerships about known problems and repair procedures. While important, a TSB is not the same as a safety recall, which typically involves a broader safety defect and manufacturer-initiated owner notifications.
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