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Service bulletin B610121

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 id10187478
Published by NHTSA2021-02-22
Manufacturer's numberB610121
Manufacturer's date2021-01-01
NHTSA componentSTRUCTURE:BODY:HOOD; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

BATTERY DOES NOT CHARGE WITH EXTERNAL CHARGER AND CLOSED HOOD: After the vehicle has been charged using a 12 V charger with the hood closed during a long stationary period, the 48 V battery may be totally discharged, and possible replacement is needed.

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

Body and frame, Electrical system, 12-volt battery

Vehicles listed
BMW 330E2021
BMW 330I2019, 2020, 2021
BMW 430I2021
BMW 530E2018, 2019, 2020, 2021
BMW 530I2017, 2018, 2019, 2020, 2021
BMW 540D2018, 2019
BMW 540D2020
BMW 540I2017, 2018, 2019, 2020, 2021
BMW C 400 X2018
BMW F800 R2017
BMW M340I2020, 2021
BMW M440I2021
BMW M550I2017
BMW M550I2018, 2019, 2020, 2021
BMW X52019, 2020, 2021
BMW X72019, 2020, 2021

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

Recalls for the same vehicles and component
20V7610002020-12-09. ELECTRICAL SYSTEM:12V/24V/48V BATTERY
20V4900002020-08-18. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

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
B6612232023-09-18. Service bulletin. ?BMW AG has issued a Delivery Stop for BMW X5, X6, X7, and 7 Series sedan vehicles that were produced between July 7, 2023 and August 15, 2023. Usage of the Highway Assist function (option code 5AX) is not possible.
B6105222022-05-16. Service bulletin. BMW AG has issued a Delivery Stop (effective March 29, 2022) on three (3) Model Year 2022 BMW X5 SAV vehicles that were produced on March 23, 2022. The 12V battery vent tube will need to be replaced.
B6124202021-08-09. Service bulletin. Some of the vehicles listed above which were initially identified as requiring Recall Campaign 20V-601 - HIGH VOLTAGE BATTERY to be performed and completed are now no longer included in this Recall.
B6103192021-07-19. Service bulletin. SERVICE ACTION: PROGRAM OR REPLACE DUAL STORAGE SYSTEM BATTERY: A software error intermittently causes a continuous resetting of the microcontroller in the power management system. This causes the red Check Control Message (CCM) "Replace Battery" to be illuminated.
B6127202021-02-22. Service bulletin. CHECKING THE JUMP START POINT COVER AND REWORKING IF NECESSARY: It is possible that the jump start terminal point cover was not installed, or not properly installed on the affected vehicles.
B6514192019-10-21. Service bulletin. HEAD UNIT NBT EVO (HU-H2) PROGRAMMING ABORT: The CID screen may light up blue. When this occurs A battery reset is not successful in restoring head unit operation Software error in the Bootloader file (BTLD) of the head unit.
B6109192019-07-22. Service bulletin. SERVICE ACTION: CHECKING THE SIGNAL WIRE AT POWER DISTRIBUTION BOX. The lithium-ion battery in the dual storage system is connected to the terminal 30C to enable issuing a switch-off command in the event of a crash.
B6106192019-06-24. Service bulletin. HIGH VOLTAGE DIAGNOSTIC SPECIALIST TRAINING AND EQUIPMENT STRATEGY. INFORMATION The ST1821 High Voltage Diagnostic Specialist Certification (HVS) is the next step in the E-mobility service strategy for BMW technicians.
B6104192019-05-20. Service bulletin. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B6103192019-05-20. Service bulletin. SERVICE ACTION: PROGRAM OR REPLACE DUAL STORAGE SYSTEM BATTERY. A software error intermittently causes a continuous resetting of the microcontroller in the power management system. This causes the red Check Control Message (CCM) "Replace Battery" to be illuminated. Software error in Dual Storage System Battery.