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Service bulletin B612117

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10149252
Published by NHTSA2018-11-26
Manufacturer's numberB612117
Manufacturer's date2017-05-01
NHTSA componentEXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH

NHTSA's summary

HAZARD WARNING SWITCH FLICKERS AFTER ENGINE START. Hazard warning switch flickers after engine start. Faulty communication between hazard warning switch and Body Domain Controller (BDC).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Lighting

Vehicles listed
BMW 530I2017
BMW 540I2017
BMW 550I2017
BMW 750LI2016
BMW M550I2018
BMW M760LI2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B6304182024-04-01. Service bulletin. One or more of the LED daytime running lights are dim or discolored.
B6308212023-07-24. Service bulletin. 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
B6304182023-05-01. Service bulletin. One or more of the LED daytime running lights are dim or discolored.
B1210212022-05-31. Service bulletin. 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.
B6304182021-08-09. Service bulletin. One or more of the LED daytime running lights are dim or discolored.
B6304212021-04-26. Service bulletin. AUTOMATIC HIGH BEAM DOES NOT DIM AUTOMATICALLY: The automatic high beams may not automatically dim to low beams.
B6302212021-04-26. Service bulletin. REAR LIGHT FAULTY CHECK CONTROL MESSAGE: The CID displays "Left brake light faulty.
B6302212021-03-15. Service bulletin. REAR LIGHT FAULTY CHECK CONTROL MESSAGE: The rear brake light will continue to work without error.
B6301212021-03-15. Service bulletin. BRAKE LIGHT REMAINS LIT AFTER BRAKE PEDAL RELEASE: The trunk-mounted brake light remains lit for several seconds after the brake pedal is released.
B6304182021-02-01. Service bulletin. ?DAYTIME RUNNING LIGHT IS DIM OR DISCOLORED: One or more of the LED daytime running lights are dim or discolored. The connection between the LED module and light tube inside the headlight is damaged.