I think it is a Canadian rather than provincial regulation about DRLs and they have been required since 1989. But perhaps Tesla is using a different interpretation for the MX vs MS.
Well, I'm finding my Canadian Model S may or may not allow me to turn OFF headlights. This is relatively new news to me!!
I have not figured out the circumstances that, when sometimes turning the headlight switch to OFF, my headlights go ON. Or if they were on, will remain on.
Sometimes, I slide the switch to OFF, and they go OFF.
The state of the headlights are shown on the control screen and correctly reflect what is actually going on outside the car with the lamps. So it's not just fake feedback or buggy UI. The function is malformed somehow.
It is truly bizarre!
Here are variables I've been playing with... and have not been able to isolate the case. I think I'll get random ability to turn headlights off with any mix of:
- amount of ambient / daylight
- time of day
- while in Park
- while driving
- range mode on/off
- headlights remain on after exit (convenience setting)
This turning headlights OFF and they go ON behavior started sometime before V8, I noticed it maybe a month or two in advance, and now, with v8 the behavior has not changed. Still "random" ability to actually turn off headlights. I've had the car for 2 years and it didn't used to be like this!
The fact that it is sometimes possible to turn off headlights, makes it seem like a bug.
If I could never turn off headlights because of some DRL regulation in Canada, I'd call that an "unwelcome feature" (because it is a poor interpretation of the regulations). Oodles of modern cars use LED surrounds as DRL. I will contact Daniel Stern about this and get his take on it.. and see if Quebec or some province is "special" (well, more than we already know they are).
Tesla: when you give a user a control, OFF means OFF !! No if's and's or but's... just do it please.
Grey the control out, or grey out the position of the slider and don't allow it to slide there, if in fact your interpretation of DRL is that headlights cannot be switched off. Finish the UI the way a UI is supposed to work.
Or, fix your headlight off bug.