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SIB 63 01 21: Brake light remains lit after brake pedal release

Brake light remains lit after brake pedal release on BMW G30/G31 models (2017–2021); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10188949 · Feb 2021 · also written SI B63 01 21, B630121

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

BRAKE LIGHT REMAINS LIT AFTER BRAKE PEDAL RELEASE: The trunk-mounted brake light remains lit for several seconds after the brake pedal is released.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 63 01 21
Also written: SI B63 01 21, B630121, 63 01 21, SIB-63-01-21, SI B630121
NHTSA ID10188949
Document IDs filedB630121
TypeService bulletin
Date
Models530e, 530i, 540d, 540i
Model years2017–2021
ChassisG30, G31
EnginesB46/B48, B57, B58
Component (NHTSA)Exterior Lighting

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

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Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.