# Service bulletin B121021

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: 10212786
- Published by NHTSA: 2022\-05\-31
- Manufacturer's number: B121021
- Manufacturer's date: 2022\-04\-01
- NHTSA component: EXTERIOR LIGHTING

## NHTSA's summary

The customer complains that under moderate throttle application or on deceleration after throttle application, a Malfunction Indicator Lamp \(MIL\) is displayed in the instrument cluster.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212786-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10212786-9999.pdf)

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

## Components

Lighting

## Vehicles listed

- 2021 to 2022 BMW 330E
- 2019 to 2022 BMW 330I
- 2018 to 2021 BMW 530E
- 2017 to 2022 BMW 530I
- 2018 to 2019 BMW 540D
- 2020 BMW 540D
- 2017 to 2021 BMW 540I
- 2018 BMW C 400 X
- 2017 BMW F800 R
- 2022 BMW M3
- 2020 to 2021 BMW M340I
- 2022 BMW M5
- 2017 BMW M550I
- 2018 to 2021 BMW M550I
- 2022 BMW R 1250 RT
- 2018 to 2022 BMW X3

## Recalls for the same vehicles and component

- [2026285](/recalls/tc/2026285.md), 2026-06-09: Lights And Instruments
- [2023463](/recalls/tc/2023463.md), 2023-08-16: Lights And Instruments
- [19V850000](/recalls/nhtsa/19V850000.md), 2019-11-27: EXTERIOR LIGHTING:HEADLIGHTS
- [2018340](/recalls/tc/2018340.md), 2018-06-22: Lights And Instruments
- [18V431000](/recalls/nhtsa/18V431000.md), 2018-06-21: EXTERIOR LIGHTING:TURN SIGNAL
- [2017561](/recalls/tc/2017561.md), 2017-11-15: Lights And Instruments
- [2017462](/recalls/tc/2017462.md), 2017-09-25: Lights And Instruments

## Other bulletins for the same vehicles and component

- [B630418](/bulletins/10252031.md), 2024-04-01, Service bulletin: EXTERIOR LIGHTING. One or more of the LED daytime running lights are dim or discolored.
- [B631223](/bulletins/10244243.md), 2023-11-01, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Upon performing a vehicle read out, faultcode \(CD0D16\- Control unit light \(BEL\)\(LIN\): Wrong variant installed\) is stored inthe BCP \(Basic Central Platform\). Note: Functionality of the exterior lights and switch is fully operational when fault code is present.
- [B630821](/bulletins/10239611.md), 2023-07-24, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Headlight check control \(CC\) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A \- Left high\-beam headlight: Short circuit and/or 8041A5 \- light outputs: Number of permitted short circuit cycles exceeded
- [B630321](/bulletins/10239610.md), 2023-07-24, Service bulletin: EXTERIOR LIGHTING:TAIL LIGHTS. Condensation is present on the inner surfaces in one or both taillights \(circled\).
- [SIB630322](/bulletins/10236233.md), 2023-05-15, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM. When unlocking the vehicle, the welcome light in the headlight "lights up eratically."
- [B630917](/bulletins/10235202.md), 2023-05-01, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Exterior rear lights do not work.
- [B630418](/bulletins/10235200.md), 2023-05-01, Service bulletin: EXTERIOR LIGHTING. One or more of the LED daytime running lights are dim or discolored.
- [SIB360122](/bulletins/10215753.md), 2022-07-18, Service bulletin: EXTERIOR LIGHTING; TIRES; EQUIPMENT. The customer finds an indication in themyBMWapp that the tires need service due to wear. Even afterreplacing the tires, the tire service indicator is still present in the myBMW app.
- [SIB630222](/bulletins/10214988.md), 2022-07-05, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. Excessive condensation has collected in one or both headlights.
- [B360122](/bulletins/10212790.md), 2022-05-31, Service bulletin: WHEELS; EXTERIOR LIGHTING. The customer finds an indication in the myBMWâ? app that the tires need service due to wear. Even after replacing the tires, the tire service indicator is still present in the myBMW app.

JSON: [/v1/bulletins/10212786](/v1/bulletins/10212786)

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