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Service bulletin B720220

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 id10172510
Published by NHTSA2020-03-16
Manufacturer's numberB720220
Manufacturer's date2020-02-01
NHTSA componentSEAT BELTS

NHTSA's summary

SAFETY BELT WARNING GONG SOUNDS AFTER UNBUCKLING WHILE VEHICLE IS STATIONARY. After a vehicle has been programmed to an I-level greater than 19-11-5xx and lower than I-level 20-03-530; the safety belt (aka seat belt) acoustic warning sounds when in Park (engine running) and the safety belt is unbuckled. The chime/gong lasts for up to 1 minute 40 seconds. The customer only expects the acoustic warning when the vehicle is moving and the safety belt is not buckled. The acoustic warning can occur when the seat is occupied and the safety belt buckle is opened on the driver's or passenger's side. Software in the ACSM4 Control Unit.

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

Seat belts

Vehicles listed
BMW I32014, 2015, 2016, 2017, 2018, 2019, 2020
BMW I82014, 2015, 2016, 2017
BMW I82019
BMW X12016, 2017, 2018, 2019, 2020
BMW X1 SAV2016 to 2017

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

Recalls for the same vehicles and component
20192762019-06-07. Seats And Restraints
16V7470002016-10-17. SEAT BELTS:FRONT:RETRACTOR
20161072016-03-03. Seats And Restraints

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
B5118152020-06-15. Service bulletin. A Check Control Message is displayed for the Tailgate Lock Open: A Check Control Message is displayed indicating that the tailgate is open even though it is mechanically closed. Faulty tailgate lock or incorrect adjustment.
B7201182019-02-25. Service bulletin. GROANING NOISE FROM DRIVER'S BACKREST. When the vehicle interior heats up beyond approx. 90 degrees Farenheit.