# Service bulletin B612216

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.

- Type: Service bulletin
- NHTSA id: 10146960
- Published by NHTSA: 2018\-11\-05
- Manufacturer's number: B612216
- Manufacturer's date: 2016\-11\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

"SME FC 21F284 ""HIGH\-VOLTAGE BATTERY UNIT, CELL SUPERVISION CIRCUIT: SAFETY CIRCUIT ACTIVATED"". Vehicle is not able to be put in a driving readiness state. Possible power reduction with ""Drivetrain Malfunction"" message while driving. Fault code \(FC\) ""21F284 \-:""High\-voltage battery unit, cell supervision circuit: Safety circuit activated"" is entered in the fault memory \(FM\) of the battery management electronics \(SME\) A fault in one or more of the following components: cell supervision circuit \(CSC\) CSC wiring harness cell module temperature sensor 12 volt connector of cell module"

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146960-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10146960-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2014 to 2017 BMW I3

## Recalls for the same vehicles and component

- [2015343](/recalls/tc/2015343.md), 2015-07-30: Electrical

## Other bulletins for the same vehicles and component

- [B011124](/bulletins/11012073.md), 2024-12-31, Warranty extension: ELECTRICAL SYSTEM. the High\-Voltage \(HV\) Battery Assembly Cell Modules Temperature Sensors \(Internal NTC repair kit\-specific\) limited warranty for defects in materials or workmanship has been extended to 15 years/150,000 miles as determined from the original in\-service/first delivery date.
- [011024](/bulletins/11012072.md), 2024-12-31, Warranty extension: ELECTRICAL SYSTEM. The High\-Voltage \(HV\) Battery Assembly Cell Modules Temperature Sensors \(Internal NTC repair kit\-specific\) limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in\-service/first delivery date.
- [B611305](/bulletins/10249027.md), 2024-02-01, Service bulletin: ELECTRICAL SYSTEM. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.
- [TEC25](/bulletins/10216792.md), 2022-08-01, Service bulletin: ELECTRICAL SYSTEM. Tec25 Wishbone Return
- [SIB651312](/bulletins/10214990.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM. The Headunit High \(HU\-H\), also called NBT, began replacing the Car Information Computer \(CIC\) on certain MY2013 vehicles with option 609 \(as of 7/2012 production\). This uses map North America NEXT. The Headunit High 2 \(HU\-H2\), also called NBT\-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 4 \(HU\-H4, also called MGU21\) superseded the MGU starting with certain MY2021 vehicles with option code 6U3 Live Cockpit Professional. This uses map North America JOY. The ENTRY Media/Navigation \(HU\-B\) is the low line business version of the navigation system and was introduced in 3/2014. This uses map North America ROUTE. The ENTRY NAV EVO \(HU\-B2\) replaced Entry Media/Navigation as the low\-line business version and was introduced in certain MY2018 vehicles. This uses map North America WAY.
- [B012021](/bulletins/10205606.md), 2021-12-27, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM; ELECTRICAL SYSTEM. For the eligible vehicles, BMW of North America, LLC \(BMW NA\) is extending the limited warranty for the vehicle's Fuel Injectors to: 15 years/150,000 miles as determined by the vehicle's original in\-service date.
- [B612016](/bulletins/10193496.md), 2021-05-17, Service bulletin: ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM. The vehicle may exhibit any of the following at very low State of Charge \(SOC\) ? less than 8%: \- Power loss or high voltage system shutdown while running range extender \(REx\). \- Inconsistent performance of the REx. \- High voltage system shutdown in vehicles without REx. \- Excessively high range displayed in instrument cluster.
- [B010321](/bulletins/10187463.md), 2021-02-22, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. I3 REX FRONT \(UPSTREAM\) OXYGEN SENSOR: If a vehicle listed above arrives with engine malfunction indicator \(Check Engine\) warning light on, performing a Vehicle Test.
- [B611820](/bulletins/10181231.md), 2020-10-19, Service bulletin: ELECTRICAL SYSTEM. BMW TURBOCORD PORTABLE EV 120 V/240 V CHARGER: The BMW\-approved accessory TurboCord electric vehicle \(EV\) charger will not charge the vehicle.
- [B650709](/bulletins/10179009.md), 2020-08-31, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. NAVIGATION SYSTEM \- REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. To ensure the best navigation experience, we do everything in our power to create the best maps. Your reports help us to detect changes in your area and keep future versions of our maps as accurate as possible. Therefore, a road map error or missing data must be reported directly to the map supplier.

JSON: [/v1/bulletins/10146960](/v1/bulletins/10146960)

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