# Service bulletin B661919

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10163057
- Published by NHTSA: 2019\-07\-22
- Manufacturer's number: B661919
- Manufacturer's date: 2019\-06\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

COMFORT ACCESS AND COMFORT GO NOT POSSIBLE. Vehicle cannot be opened/locked or started via Comfort Access. Electrostatic charge puts the remote control key into a deep sleep.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163057-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163057-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2019 BMW 330I
- 2018 BMW 530E
- 2017 to 2018 BMW 530I
- 2018 BMW 540D
- 2017 BMW 540I
- 2018 BMW 640I
- 2017 BMW 740E
- 2017 BMW 740I
- 2016 to 2017 BMW 740LI
- 2016 to 2017 BMW 750LI
- 2018 BMW C 400 X
- 2017 BMW F800 R
- 2018 BMW M5
- 2017 BMW M550I
- 2017 BMW M760I
- 2019 BMW M850I
- 2018 to 2019 BMW X3
- 2019 BMW X4
- 2019 BMW X5
- 2019 BMW X7
- 2019 BMW Z4

## Recalls for the same vehicles and component

- [26V441000](/recalls/nhtsa/26V441000.md), 2026-07-08: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
- [25V644000](/recalls/nhtsa/25V644000.md), 2025-09-25: ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [2025499](/recalls/tc/2025499.md), 2025-09-23: Electrical
- [25V636000](/recalls/nhtsa/25V636000.md), 2025-09-23: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
- [2024444](/recalls/tc/2024444.md), 2024-08-01: Electrical
- [24V576000](/recalls/nhtsa/24V576000.md), 2024-08-01: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE; ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [23V584000](/recalls/nhtsa/23V584000.md), 2023-08-16: ELECTRICAL SYSTEM:SOFTWARE; SEAT BELTS
- [21V520000](/recalls/nhtsa/21V520000.md), 2021-07-08: AIR BAGS:FRONTAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [20V152000](/recalls/nhtsa/20V152000.md), 2020-03-18: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
- [19V291000](/recalls/nhtsa/19V291000.md), 2019-04-10: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [B110426](/bulletins/11035500.md), 2026-08-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate.
- [B720125](/bulletins/11028928.md), 2026-02-23, Warranty extension: AIR BAGS; ELECTRICAL SYSTEM; SEATS. A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL \(Passenger Occupancy Light\) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module \(ACSM\) fault is stored: 930A1C \- Front passenger seat occupancy detection transmitting fault \(moisture\)
- [B720125](/bulletins/11024726.md), 2025-11-03, Warranty extension: AIR BAGS; ELECTRICAL SYSTEM. A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL \(Passenger Occupancy Light\) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module \(ACSM\) fault is stored: 930A1C \- Front passenger seat occupancy detection transmitting fault \(moisture\)
- [B720125](/bulletins/11017101.md), 2025-04-18, Warranty extension: ELECTRICAL SYSTEM; AIR BAGS. The Supplemental Restraint Systems \(SRS\) Front Passenger’s Seat Occupancy Capacitive Interior Sensor \(CIS\) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in\-service / first delivery date.
- [B720225](/bulletins/11017100.md), 2025-04-18, Warranty extension: AIR BAGS; ELECTRICAL SYSTEM. The Supplemental Restraint Systems \(SRS\) Front Passenger’s Seat Occupancy Capacitive Interior Sensor \(CIS\) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in\-service / first delivery date.
- [B720325](/bulletins/11017099.md), 2025-04-18, Warranty extension: ELECTRICAL SYSTEM; AIR BAGS. The Supplemental Restraint Systems \(SRS\) Front Passenger’s Seat Occupancy Capacitive Interior Sensor \(CIS\) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in\-service / first delivery date.
- [B720417](/bulletins/11017098.md), 2025-04-18, Warranty extension: ELECTRICAL SYSTEM; AIR BAGS. The Supplemental Restraint Systems \(SRS\) Front Passenger’s Seat Occupancy Capacitive Interior Sensor \(CIS\) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original inservice / first delivery date.
- [B011624](/bulletins/11013037.md), 2025-01-23, Warranty extension: ELECTRICAL SYSTEM. The Telematics Control Units \(TCU\) Internal Emergency \(Backup\) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in\-service / delivery date. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusions that apply to the BMW New Vehicle Limited Warranty.
- [B011824](/bulletins/11012111.md), 2025-01-02, Warranty extension: ELECTRICAL SYSTEM. The Telematics Control Units \(TCU\) Internal Emergency \(Backup\) Battery for defects in materials and/or workmanship has been extended to 6 years without mileage limitation, as determined from the vehicles original first in\-service / delivery date.
- [B011124](/bulletins/11012073.md), 2024-12-31, Warranty extension: ELECTRICAL SYSTEM. the High\-Voltage \(HV\) Battery Assembly Cell Modules Temperature Sensors \(Internal NTC repair kit\-specific\) limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in\-service/first delivery date.

JSON: [/v1/bulletins/10163057](/v1/bulletins/10163057)

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