Service bulletin B660118

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)
Type	Service bulletin
NHTSA id	10142942
Published by NHTSA	2018-07-16
Manufacturer's number	B660118
Manufacturer's date	2018-01-01
NHTSA component	ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

REMOTE KEY WILL NOT OPEN OR START VEHICLE: Remote key battery in service significantly less (under a year) than expected two-year life-span.

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

Electrical system, 12-volt battery

Vehicles listed
BMW I3	2014, 2015, 2016, 2017, 2018
BMW I8	2014, 2015, 2016, 2017
BMW X1	2016
BMW X1	2018
BMW X1 SAV	2016 to 2017
BMW X2	2018
BMW X5	2014, 2015, 2016, 2017, 2018
BMW X5 M	2018
BMW X6	2015, 2016, 2017, 2018
BMW X6 M	2018

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
B651419	2019-10-21. 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.
B610619	2019-06-24. 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.
B610419	2019-05-20. Service bulletin. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B610419	2019-05-20. Service bulletin. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED This Service Information bulletin replaces SI B61 04 19 dated March 2019.
B610419	2019-04-22. Service bulletin. THE VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED. The customer's vehicle does not start due to a totally discharged battery.
B613014	2018-12-10. 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 12volt 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."
B121416	2018-12-10. Service bulletin. Service Action: Program control units (DME data status). The high-voltage battery's life may be reduced when charging the high-voltage battery while the vehicle is in motion. AFFECTED VEHICLES Certain VINs (not all) produced between August 7, 2015 and April 19, 2016. Please check the key reader or the Warranty Vehicle Inquiry screen in DCSnet. The charging strategy incorporated in the DME software.
B610616	2018-12-10. Service bulletin. "CCM ""Engine fault! Power loss"" and/or ""Battery charging fault!"". Upon unlocking or starting the vehicle, one or both of the following Check Control messages (CCM) are displayed to the customer: ""Engine fault! Power loss"" (CCM-ID: 29) ""Battery charging fault!"" (CCM-ID: 213). Faults from Safety box (S-Box) in the high-voltage battery."
B120316	2018-12-10. Service bulletin. EME No Longer Communicates after HV Charging. On the affected i3 vehicles (with software integration levels 15-11-501 through 15-11-504), the Drive Readiness can no longer be established after attempting to charge the HV battery. In such a case, EME no longer communicates with ISTA. In some cases, various calibration values are lost (e.g. resolver angle). CAUSE Vehicle was charged before Transport Mode removal. This may cause: Irreparable damage to the EME. Taught-in values to be set to default values, requiring repetition of teach-in process.
BMWFEB1416	2018-12-10. Service bulletin. "A Delivery Stop has been issued on i01 (i3 Battery Electric Vehicle) produced from December 09, 2015 to January 22, 2016. These vehicles are equipped with a sunroof as part of the Shadow Sport limited edition. The sunroof may not be properly sealed, so that leaks could possibly develop. Affected vehicles have been identified and will display under ""vehicle comments"" in DCS Warranty or ISPA Light. We will provide you with more information regarding the repair process and parts availability as soon as possible. See attached Service Information Bulletin B54 01 16 for more details. Please be reminded that it is a violation of Federal law for you to sell, lease or deliver any vehicle covered by this notification until the delivery stop repair has been performed. This means that centers may not legally deliver new motor vehicles to a consumer until it is fixed or use/sell replacement equipment/parts subject to a delivery stop. Note also that substantial civil penalties apply to violations of this law. Also, you should not sell, lease or deliver any Certified Pre-Owned or used vehicles subject to a delivery stop until the repair is completed."