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Service bulletin 12 19 15

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 id10059002
Published by NHTSA2016-01-11
Manufacturer's number12 19 15
Manufacturer's date2015-06-01
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

NHTSA's summary

THE ELECTRIC MACHINE ELECTRONICS CONNECTION FOR THE B+ THAT LEADS TO THE 12V BATTERY THAT MOVES ENERGY FROM THE DC/DC CONVERTER MAY CORRODE OVER TIME, WHICH COULD BREAK IN SOME CASES. THIS WOULD INTERRUPT THE OUTPUT FROM THE DC/DC AND WOULD DISCHARGE THE 12V BATTERY. *MA

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, 12-volt battery

Vehicles listed
BMW ACTIVE HYBRID 52013

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
6122132018-12-03. Service bulletin. """Increased battery discharge!"" CC Message upon Startup. CAUSE A software error in the Intelligent Battery Sensor causes an incorrect State of Charge (SoC) to be stored in the DME. The power management system then interprets this as a heavily discharged battery and informs the customer via a CC message. In reality, the battery does not have a problem."
6130142018-11-13. Service bulletin. BMW Maintenance Program: 12-Volt Battery Replacement Measure.
B6130142018-11-13. Service bulletin. "BMW Maintenance Program: 12-Volt Battery Replacement Measure. INFORMATION This bulletin outlines a customer satisfaction measure that has been designed exclusively for the BMW vehicles listed above. It involves the replacement of the 12-volt battery as a preventive maintenance measure. This 12-volt battery replacement measure is: ? Effective for repairs dated on or after January 1, 2015. ? Applicable to vehicles that are still covered by the BMW Maintenance Program. This program is valid for 4 years or 50,000 miles, whichever occurs first. ? The calculation is based on the current date of repair. It is ""applicable"" when the 12-volt battery was not replaced within the last 12 months. You can then perform the battery replacement as outlined below. Please check the warranty claim history for the specific vehicle in the DCSnet Warranty Vehicle Inquiry to confirm the battery was not already replaced within the previous 12 months."
B6405132018-11-05. Service bulletin. HV Battery Expansion Valve Sticking. The high-voltage battery is cooled by refrigerant as part of the vehicle's AC system. It is regulated using an expansion valve at the base of the battery itself. This expansion valve can become stuck in the open position, either intermittently or permanently. Fault code 21F107 - Cooling valve: valve couldn't be closed will be stored in the SME. CAUSE 1. Excess material from the manufacturing process can become lodged in the valve, causing it to stick open. 2. The diagnostic software in the SME control unit is not robust enough and can lead to a fault being set when a particular threshold is reached, despite the fact that the valve is not actually sticking.
B6525162018-11-05. Service bulletin. USB CABLE: BATTERY DISCHARGE/AUDIO FAILURE/RADIO RECEPTION. No sound from the radio, telephone, gong signal and or PDC. Poor radio reception and failure of the telematics systems. Possible Check Control system message: o Battery discharge when engine off. o Caution, no acoustic warning signals. Non BMW approved (third-party supplier) USB cable plugged into the USB port.
B0121182018-10-09. Service bulletin. PRELIMINARY CLASS ACTION SETTLEMENT INFORMATION: N63 OIL CONSUMPTION/BATTERY DRAIN: BMW of North America, LLC (ÒBMW NAÓ) has entered into a preliminary nationwide settlement with the plaintiffs (ÒClass MembersÓ) in the following class action: Bang, et al v. BMW of North America, et al.
SIB-12-19=152015-09-25. Service bulletin. BMW: SOME VEHICLES B+ CABLE TO 12V BATTERY WILL CORRODE OVERTIME AND BREAK CAUSING OUTPUT TO DC/DC CONVERTER TO BE INTERRUPTED. MODEL 2011-13 ACTIVEHYBRID 5, 7. *PE