Automatic high beams, safe use and options

2018 is an early generation of the system (TSS-P). Mine is the same year. It does not work well in my opinion. I can usually react faster than the "automatic" mode which is crazy because computers should work almost instantly. Sometimes it doesn't let me turn on the high beams at all. And sometimes it just behaves erratically.

The LED low beams on the Prime seem pretty good. I don't think IIHS specifically tested them. They only tested the regular Prius which has different lights.

The high beams on the Prime are extremely bright, and I don't want to subject other drivers to that (except in the rare case that they deserve it).

There are so many ways they could make it better. I guess federal regulations keep us from having adaptive headlights.

Another improvement could be to imperceptibly pulse the vehicles headlights in sync with the camera. For example turn the lights off for 1 millisecond and have the camera save a frame. Anything that goes dark is a reflection, and anything that stays light is an external light source. As long as it's fast enough not to be visible to human eyes, you wouldn't notice it.

Has anyone driven a car with TSS 3.0? With a couple generations of improvements does it work better?

 

our 2024 hycam works exceptionally well. tss2.5 not perfect, but turns the high beams off when you want them occasionally, but always turns them off with oncoming traffic.
seems like a sensor issue.

 

Mine will always eventually turn them off for oncoming traffic, but it takes a second or two. It should be close to instant for me to really trust it. Two seconds is plenty of time to blind the other driver.

 

agreed. as soon as you see them, the sensor should sense them and turn off the hi beams.

 

I don't know which TSS is in our 2018 c model, but the auto hi beams work great. I mean, I've caught a mistake here and there but most of the time it does what it says on the tin.

 

It might depend on the roads. Around where I live, winding back roads are the only ones with low enough traffic to use high beams at all. Speed limit is usually 35-55. The automation might work better on a straight highway where oncoming traffic is coming straight at you.

 

I have reduced my night driving, in part due to senior eye issues, so haven't yet driven my R4P with TSS2.5 much at night yet in conditions where high beams can be used. Infrequently enough to have forgotten how to even set it up correctly during the first part of crossing the mountains last night. It had somehow been switched off since the last use i-don't-know-how-long-ago. But once turned on, it worked very well the rest of the last night's drive.

 

I made a post a few months ago on how to turn it off on my 2017 Prime (I didn't expect my base trim to have that). Its performance is really poor.

 

On our ‘22 XLE Nightshade it works great, sensitive enough to handle in town driving with out offending on coming traffic or traffic we approach from the rear.