Re: Driving in Poor visibility...wake up people !
The motor vehicle lighting standard is decades out of date, and never anticipated the possibility of instrument lighting that used technology requiring it to be illuminated all the time in order to function. (My own car is like this, the main instrument display is a TFT screen ... but I know where the little green "lights-on" indicator is) The auto manufacturers evidently made an assumption that people would pay attention to a little green indicator lamp, as opposed to having a completely dark instrument panel like in the old days (which is how every car was built by default at the time the motor vehicle lighting standard was written)
Transport Canada is fixing this although it's not taking effect for another year or two. The new requirement will essentially prohibit having any illumination on the instrument panel other than idiot lights if the outside lighting (tail and running lamps) isn't on unless lighting sensors detect that it isn't dark. That may sound odd, but the intent is to allow several methods of achieving compliance: (1) old school lighting circuit (instrument lighting together with tail + running lamps), (2) full automatic lights, (3) kill instrument lighting if it's dark and the driver hasn't turned on the outside lights (VW does this), (4) tail and running lamps on all the time.
No idea if the USA is following suit. There is a fair chance that manufacturers will make them all the same, i.e. comply with the Canadian requirement.
The motor vehicle lighting standard is decades out of date, and never anticipated the possibility of instrument lighting that used technology requiring it to be illuminated all the time in order to function. (My own car is like this, the main instrument display is a TFT screen ... but I know where the little green "lights-on" indicator is) The auto manufacturers evidently made an assumption that people would pay attention to a little green indicator lamp, as opposed to having a completely dark instrument panel like in the old days (which is how every car was built by default at the time the motor vehicle lighting standard was written)
Transport Canada is fixing this although it's not taking effect for another year or two. The new requirement will essentially prohibit having any illumination on the instrument panel other than idiot lights if the outside lighting (tail and running lamps) isn't on unless lighting sensors detect that it isn't dark. That may sound odd, but the intent is to allow several methods of achieving compliance: (1) old school lighting circuit (instrument lighting together with tail + running lamps), (2) full automatic lights, (3) kill instrument lighting if it's dark and the driver hasn't turned on the outside lights (VW does this), (4) tail and running lamps on all the time.
No idea if the USA is following suit. There is a fair chance that manufacturers will make them all the same, i.e. comply with the Canadian requirement.