# Service bulletin B651221

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: 10212528
- Published by NHTSA: 2022\-05\-31
- Manufacturer's number: B651221
- Manufacturer's date: 2022\-02\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

BMW AG has issued a Delivery Stop \(effective June 9, 2021\) on certain Model Year 2021 BMW vehicles that were produced between May 7, 2021 and May 21, 2021. The Receiver Audio Module \(RAM\) will need to be added to the affected vehicles.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212528-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212528-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 BMW 330E
- 2019 to 2021 BMW 330I
- 2018 to 2021 BMW 530E
- 2017 to 2021 BMW 530I
- 2018 to 2019 BMW 540D
- 2020 BMW 540D
- 2017 to 2021 BMW 540I
- 2021 BMW M3
- 2020 to 2021 BMW M340I
- 2017 BMW M550I
- 2018 to 2021 BMW M550I
- 2019 to 2021 BMW Z4

## Recalls for the same vehicles and component

- [26V441000](/recalls/nhtsa/26V441000.md), 2026-07-08: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
- [26V056000](/recalls/nhtsa/26V056000.md), 2026-01-30: 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
- [2020605](/recalls/tc/2020605.md), 2020-12-10: Electrical
- [20V761000](/recalls/nhtsa/20V761000.md), 2020-12-09: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- [20V601000](/recalls/nhtsa/20V601000.md), 2020-09-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

## Other bulletins for the same vehicles and component

- [B840226](/bulletins/11035408.md), 2026-07-31, Service campaign: ELECTRICAL SYSTEM. Once the Telematics Module \(TCB2\) enters sleep mode, a BMW Data Services trigger for Remote Services\(remote engine start, lock/unlock/climate conditioning\) will not be able to reactivate the TCB2. Due to this issue, Remote Services will not function in the vehicle when parked and locked.
- [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.
- [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.
- [011024](/bulletins/11012072.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.
- [B610321](/bulletins/10250893.md), 2024-03-02, Service bulletin: ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER; ELECTRICAL SYSTEM:SOFTWARE. SITUATION BMW AG is conducting a Voluntary Emissions Recall \(effective April 23, 2021\) on a certain Model Year 2020 \- 2021 BMW vehicles that were produced between August 13, 2019 and December 11, 2020. Do not deliver to a customer, a New, Certified Pre\-Owned or Used vehicle subject to an emissions recall, until the vehicle is repaired. Do not use or sell replacement equipment/parts subject to an emissions recall. The 12 V battery’s dual storage system \(DSS\) may contain a software error which intermittently causes a continuous resetting of the microcontroller and communication failure. The error is displayed by a red Check Control message.
- [B660720](/bulletins/10250601.md), 2024-03-02, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. The functionality of the left rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message.

JSON: [/v1/bulletins/10212528](/v1/bulletins/10212528)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20B651221&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10212528&vehicle=Service%20bulletin%20B651221)