# Service bulletin B840121

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: 10200487
- Published by NHTSA: 2021\-08\-23
- Manufacturer's number: B840121
- Manufacturer's date: 2021\-05\-01
- NHTSA component: EQUIPMENT:ELECTRICAL

## NHTSA's summary

TELEMATICS UNIT DEACTIVATION DUE TO 3G CELLULAR TECHNOLOGY DISCONTINUATION: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G \(Telematics ControlModule\) can no longer be supported by the cellular network provider starting February 2022.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200487-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10200487-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- 2014 to 2016 BMW 228I
- 2017 to 2021 BMW 230I
- 2013 to 2018 BMW 320I
- 2014 to 2018 BMW 328D
- 2012 to 2016 BMW 328I
- 2016 to 2018 BMW 330E
- 2017 to 2020 BMW 330I
- 2012 to 2017 BMW 335I
- 2016 to 2019 BMW 340I
- 2020 BMW 340I
- 2014 to 2016 BMW 428I
- 2017 to 2020 BMW 430I
- 2014 to 2016 BMW 435I
- 2017 to 2020 BMW 440I
- 2014 BMW 525D XDRIVE
- 2011 to 2016 BMW 528I
- 2014 to 2016 BMW 535D
- 2011 to 2017 BMW 535I
- 2010 to 2012 BMW 535I GRAN TURISMO
- 2011 BMW 535I US
- 2011 to 2017 BMW 550I
- 2010 to 2012 BMW 550I GRAN TURISMO
- 2012 to 2019 BMW 640I
- 2012 to 2018 BMW 650I
- 2012 to 2015 BMW 740I
- 2015 BMW 740LD
- 2011 to 2015 BMW 740LI
- 2009 to 2015 BMW 750I
- 2009 to 2015 BMW 750LI
- 2010 to 2012 BMW 760LI
- 2014 to 2015 BMW 760LI
- 2013 BMW ACTIVE HYBRID 3
- 2014 to 2015 BMW ACTIVE HYBRID 3
- 2012 to 2013 BMW ACTIVE HYBRID 5
- 2012 to 2013 BMW ACTIVE HYBRID 7
- 2014 to 2015 BMW ACTIVE HYBRID 7
- 2011 BMW ACTIVEHYBRID 7
- 2015 to 2016 BMW B7 ALPINA
- 2014 to 2021 BMW I3
- 2014 to 2017 BMW I8
- 2019 to 2020 BMW I8
- 2014 to 2016 BMW M235I
- 2017 to 2021 BMW M240I
- 2015 to 2018 BMW M3
- 2015 to 2020 BMW M4
- 2013 to 2016 BMW M5
- 2013 to 2019 BMW M6
- 2013 to 2021 BMW X1
- 2012 to 2017 BMW X1 SAV
- 2011 to 2017 BMW X3
- 2015 to 2018 BMW X4
- 2014 to 2018 BMW X5
- 2018 BMW X5 M
- 2015 to 2019 BMW X6
- 2015 to 2019 BMW X6 M
- 2009 to 2016 BMW Z4

## Recalls for the same vehicles and component

- [18V652000](/recalls/nhtsa/18V652000.md), 2018-09-20: EQUIPMENT:ELECTRICAL
- [17V327000](/recalls/nhtsa/17V327000.md), 2017-05-18: TIRES; EQUIPMENT:OTHER:LABELS
- [10V047000](/recalls/nhtsa/10V047000.md), 2010-02-18: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [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.
- [B660820](/bulletins/10250600.md), 2024-03-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. The functionality of the right rear SRR sensor could be reduced which would display the "Driving Assistance"\- Check Control Message.
- [B610524](/bulletins/10249032.md), 2024-02-01, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. The Central Information Display goes black intermittently due to resets of the Head Unit \(HU\-H3\). FaultB7F8F9 â“ âHU\-H: Resetâ will be stored in the HU\-H3.
- [B653423](/bulletins/10245422.md), 2023-12-06, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Customers may state that the alarm system \(DWA\) is not active after locking their unoccupied vehicle. Depending on the vehicle’s equipment and settings, no acoustic or optical confirmation \(folding the mirrors/blinking confirmation\) is noticeable. Additionally, the red anti\-theft alarm LED in the interior mirror does not briefly flash every 2 seconds, indicating the alarm is armed.
- [B612723](/bulletins/10245377.md), 2023-12-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. When using the Key Reader to retrieve CBS information from the customer key, no current vehicle data is available, or the data does not match the maintenance schedule.
- [B652823](/bulletins/10242874.md), 2023-10-01, Service bulletin: EQUIPMENT. Customers may be experiencing one or more of these following issues with Bluetooth operation: Bluetooth cannot be switched on or off in the head unit \(HU\-H4\) Paired mobile devices cannot be deleted Customer is unable to make phone calls or stream music with mobile device Customer is unable to connect a new mobile device via Bluetooth Mobile device does not automatically reconnect via Bluetooth in the next drive cycle \(after short sleep cycle\)
- [SB23\-01](/bulletins/10240305.md), 2023-08-03, Service bulletin: SUSPENSION; STEERING; EQUIPMENT. Spl Parts, Inc. communications index accompanying MCP uploads 23mc40464 \& 23mc40471
- [sb23\-01TMS](/bulletins/10240273.md), 2023-08-02, Service bulletin: SUSPENSION; STEERING; EQUIPMENT. This is the companion to SPL Parts, Inc.'s SB 23\-01 mailed by private label independent distributor Turner Motorsports.
- [SB 23\-01](/bulletins/10240266.md), 2023-08-02, Service bulletin: EQUIPMENT; SUSPENSION; STEERING. SPL Parts, Inc. manufacturers and distributes aftermarket lower control arms for dedicated competition vehicles and "track day" cars some of which may be used on both track and highway. SB 23\-01 adresses proper installation torque of cap bolt fasteners attaching SPL's aftermarket lower control arms, recurring inspection and confirmation of torque setting and removal and replacement of damaged or under torqued fasteners to reduce risk of premature failure and accident. SB\-23\-01 was mailed, emailed and posted on SPL website to known resellers, race teams and users of the affected parts and is being submitted here as required by part 579.5. Vehicle Applications include: BMW series 1,2,3,\& 4, 2008\-2023; Chevrolet Camaro 26\-2023, Cadillac ATS, CTS 2016\-2019; Ford Mustang 2015\-2023; Toyota Supra 2020\-2023.
- [B611320](/bulletins/10239608.md), 2023-07-24, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. In the event of an accident, the two\-battery Dual Storage System \(DSS\) is disconnected from the electrical system via an internal relay.

JSON: [/v1/bulletins/10200487](/v1/bulletins/10200487)

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