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SIB 66 03 20: Electrical system warning message

Electrical system warning message on BMW G05/G06/G07/G14 and other models (2015–2020); BMW gives an inspection and repair procedure.

BMW service bulletin · NHTSA ID 10174315 · Apr 2020 · also written SI B66 03 20, B660320

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.

DIAGNOSTIC HINT: DRIVING ASSISTANCE SUPPORT REDUCED CHECK CONTROL MESSAGE DISP: Driving Assistance support reduced Check Control Message (CCM) is displayed sporadically. All or some of the system functions maybe inoperative.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 66 03 20
Also written: SI B66 03 20, B660320, 66 03 20, SIB-66-03-20, SI B660320
NHTSA ID10174315
Document IDs filedB660320
TypeService bulletin
Date
Models330i, 530e, 530i, 540d, 540i, 840i, M340i, M550i, M850i, X5, X6, X7, Z4
Model years2015–2020
ChassisG05, G06, G07, G14, G15, G16, G20, G21, G29, G30, G31, F16, F30, F34
EnginesB46/B48, B57, B58, N55, N57, N63
Component (NHTSA)Electrical System
Equipment Adaptive/Mobility

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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Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.

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.

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