# Service bulletin B611808

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: 10153706
- Published by NHTSA: 2019\-02\-25
- Manufacturer's number: B611808
- Manufacturer's date: 2018\-12\-01
- NHTSA component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## NHTSA's summary

BATTERY MAINTENANCE REQUIREMENTS: BATTERY CARE. Proper battery maintenance is vital when BMW vehicles are in your center's inventory. Allowing a vehicle's battery voltage to drop below 12.0 volts \(12.0V\) permanently reduces the battery life expectancy and can lead to premature failure of the battery. For vehicles, equipped with a high\-voltage battery \(hybrid/electric vehicles\), failure to properly maintain this battery may lead to a greatly discharged HV battery, requiring replacement.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10153706-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10153706-9999.pdf)

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

## Components

Electrical system, 12\-volt battery

## Vehicles listed

- BMW BMW

JSON: [/v1/bulletins/10153706](/v1/bulletins/10153706)

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