What Is Vehicle Bulb Monitoring ~ Video

Today I am joined by Paul from ShopDAP.com. We are talking about bulb monitoring. This is not a new technology for cars. Even back in 2004 the VW Touareg had a system that would alert the driver when a bulb was out. But this feature is not reserved for high end cars today. I would not be surprised if at some point, it was a law for all cars to have this system. I also wrote a blog post years ago about how automotive lights are lit now vs in the 70’s. Remember when I wrote a lot of blog posts?

Sponsor Of The DayResealed VW headlight
Today’s show is sponsored by Deutsche Auto Parts. They are the VW and Audi parts experts. They have great prices and awesome service. Plus they work really hard on a ton of VW DIY videos. Paul and the fellas at DAP are awesome. Also check out their new site at SHOPDAP.com

Join Paul and I as we discuss:

  • Paul teaches how to say Deutsche 😉
  • Warning light for a bulb out
  • The Evolution of Lighting Light Bulbs
  • What it took to light a light bulb
  • What it takes NOW to light a light bulb
  • Power flow of classic bulb circuit
  • Power flow of a monitored bulb
  • LED lights in a bulb monitoring circuit
  • LED with resistors
  • Bulb self test
  • and more

Trouble viewing? Watch “What Is Vehicle Bulb Monitoring ~ Video” on YouTube.

As always, your questions and comments are welcome.
Please post them below. If you would like to suggest a part of a show like this, email me Charles(at)HumbleMechanic(dot)com. Thanks again to Deutsche Auto Parts for being such a great sponsor.

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3 replies
  1. Earl Owens
    Earl Owens says:

    In reference to the vehicle Bulb Monitoring light on my 2013 Jetta S. I have change two side marker lights and two brake lights . VBM was turns on when i turn on headlights. Then changed the passenger side headlight. The VBM still turns on when i turn on headlights.I check all lights they are fine. Any ideas?

  2. Tree Trimming Thornton
    Tree Trimming Thornton says:

    The first and most simple solution is to fit a CANbus compatible bulb. Bulbs like the Twenty20 Cree LEDs and some of the Ring Premium range have additional resistors built into them to adjust the characteristics of the bulb.


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