You're describing the "Flash-to-pass" feature which is a european
requirement, IIRC.

It's designed for a manual momentary "flash-flash" operation, not to be
held that way for continuous use.

It's an excellent way to get home if your headlight switch fries (giving
you NO lighting), as happened to me one particular dark and stormy night
in my '87 Westy.

Mike B.

On 10/1/2013 12:07 AM, JRodgers wrote:
> Was there ever a model year of Vanagon with dual headlights where both
> high and low beams were on at the same time??  Like low beams are just
> on  and when the dimmer control switch was pulled the brights come on
> and the low beams remain on as well? Or something simmilar?
>
> Just curious.
>
> John