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January 1, 2021 Service bulletin

False alarm activation triggered by interior ultrasound sensor

BMW technical service bulletin B650221 for 2019-2021 BMW X5, 2019-2021 BMW 330I and 2019-2021 BMW X7 and others.

Bulletin number
B650221
Component
Electrical system
Summary
FALSE ALARM ACTIVATION TRIGGERED BY INTERIOR ULTRASOUND SENSOR: The DWA (anti-theft alarm) triggers for no apparent reason with all the vehicle's doors and windows closed.

Owners of these vehicles have filed 251 complaints in the electrical category.

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