Forget about reflectors, grills, inners, outers, parking lights, and all
> that. The high beams also function as daytime running lights. When you
> take the car out of "park" then drive away, the high beams are illuminated
> at low brilliance. The DRL relay (ambient light sensor detecting daylight)
> when picked up, places the high beams in series (voltage dropping) to dim
> the high beams, that's it. Unless you've done modifications to your
> lighting controls ?
You and James are right, the high-beams are used DRL in the Bonneville.
I stepped out of the car and confirmed what you described. Until then, I was just relying on its reflection on the cars ahead of me...