# Service bulletin B510121

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: 10187476
- Published by NHTSA: 2021\-02\-22
- Manufacturer's number: B510121
- Manufacturer's date: 2021\-01\-01
- NHTSA component: VISIBILITY

## NHTSA's summary

INSUFFICIENT DRIVER'S SIDE MIRROR HEATER TEMPERATURE: The driver's side mirror glass does not defrost as quickly as the passenger's side.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187476-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187476-9999.pdf)

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

## Components

Glass, wipers and mirrors

## Vehicles listed

- BMW K SERIES

JSON: [/v1/bulletins/10187476](/v1/bulletins/10187476)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20B510121&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10187476&vehicle=Service%20bulletin%20B510121)