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SIB 65 02 21: False alarm activation triggered by interior ultrasound sensor

False alarm activation triggered by interior ultrasound sensor on BMW G05/G06/G07/G20 and other models (2019–2021); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10187482 · Jan 2021 · also written SI B65 02 21, B650221

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

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.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 65 02 21
Also written: SI B65 02 21, B650221, 65 02 21, SIB-65-02-21, SI B650221
NHTSA ID10187482
Document IDs filedB650221
TypeService bulletin
Date
Models330e, 330i, M340i, X5, X6, X7
Model years2019–2021
ChassisG05, G06, G07, G20, G21, F30, F34
EnginesB46/B48, B58, N63
Component (NHTSA)Electrical System
Equipment › Electrical › Anti-theft Devices

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

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Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.