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Thread: Shaded lights are getting me down

Started 2 months, 4 weeks ago by xvs
Shaded lights are getting me down At first I really liked the shaded headlights feature of my new 2010 Prius. The beam doesn't go high enough to bug other oncoming drivers, and that seemed to be a good thing. What I'm noticing is that the shading is a problem on windy roads. It keeps the lights from projecting far enough to see what the road is doing, and means that I would ...
Site: PriusChat Forums  PriusChat Forums - site profile
Forum: 2010 Toyota Prius  2010 Toyota Prius - forum profile
Total authors: 18 authors
Total thread posts: 26 posts
Thread activity: no new posts during last week
Domain info for: priuschat.com

Other posts in this thread:

anniea replied 2 months, 4 weeks ago
Re: Shaded lights are getting me down Quote: Originally Posted by xvs At first I really liked the shaded headlights feature of my new 2010 Prius. The beam doesn't go high enough to bug other oncoming drivers, and that seemed to be a good thing. What I'm noticing is that the shading is a problem on windy roads. It keeps the lights from projecting far ...

qbee42 replied 2 months, 4 weeks ago
Re: Shaded lights are getting me down // The OP is talking about headlight cutouts. The cutouts are baffles or optics that allow light to fall on the road but not into oncoming driver's eyes. They are there for just that reason, and altering them out of specification is dangerous, rude, and illegal. Have your dealer check yours and make sure they are properly ...

mgb4tim replied 2 months, 4 weeks ago
Re: Shaded lights are getting me down maybe slow down a bit?

patsparks replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down Headlights need adjusting.

Mystic replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down // Quote: Originally Posted by patsparks Headlights need adjusting. I don't think his headlights need adjusting. I think that's just the way they are. I find that in most situations they are fine but sometimes I'm quite annoyed at how quickly they cut off. There are many times I would ...

indianagreg replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down I've also noticed that visibility is very limited on descents of short fairly steep hills. While you can see very well going down, you may have little idea as to what lays ahead in the road where it flattens out (without the hi-beams). There is a rather definite line at which light ends and darkness begins; the effect of the abruptness is ...

qbee42 replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down The problem comes from new headlights being brighter and better. Old headlight designs were pretty bad about keeping light away from oncoming traffic, but it didn't matter as much since they weren't so bright. The new ones are brighter with sharper cutoffs. The brighter light means the shadows to the side seem even darker, so the effect is ...

xvs replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down // Quote: Originally Posted by qbee42 The brighter light means the shadows to the side seem even darker, so the effect is amplified. It's not the sides I'm talking about, it's the top. The light is cut completely off at the top. This can be seen when I drive up to my garage door (which ...

hobbit replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down The problem is that HID lamps generally need to stay on, so the low-beam simply drops a shutter across the output to cut off the top of it and avoid oncoming drivers' eye level. It only sorta works, as curve and hill situations can still throw the bulk of brightness right into where opposing traffic is and the car has no way to ...

PriusLewis replied 2 months, 3 weeks ago
Re: Shaded lights are getting me down Quote: Originally Posted by hobbit The DOT was insane to actually give such rigs the green safety light. We are lucky today, in a way - about 25 years ago the standard changed to finally allow aerodynamic headlights. Before that, there was a Federal Motor Vehicle Safety Standard, FMVSS-121, which dictated ...

 

Top contributing authors

Name
Posts
xvs
3
user's latest post:
Shaded lights are getting me...
Published (2009-09-25 18:50:00)
Re: Shaded lights are getting me down Thanks for everyone's replies, but I still would love an answer to: - Is this how all 2010s are? - Is this how they're required to be by law? - If not, how do I adjust it?
qbee42
3
user's latest post:
Shaded lights are getting me...
Published (2009-09-28 11:49:00)
Re: Shaded lights are getting me down // Quote: Originally Posted by xvs It's not the sides I'm talking about, it's the top. <snip> Top or sides, my point is the same: the brightness of the lit areas make the dark areas appear even darker. If you start with dimmer lights, the dark areas appear not so dark. It has to do with the way human eyes adapt to light and dark. You can see this when you walk a trail at night...
tumbleweed
3
user's latest post:
Shaded lights are getting me...
Published (2009-09-29 17:44:00)
Re: Shaded lights are getting me down Quote: Originally Posted by aroide I got traded in my 2007 Prius for a 2010 Prius V. And yes, the headlight aiming is scary. Things just pop out of the darkness as the line between bright (which is very bright) and dark is something like 2 car lengths in front of the car. I almost hit a coyote the other night. My wife has an 09 Acura MDX which does have a distinctive line between light and dark, but the...
PriusLewis
2
user's latest post:
Shaded lights are getting me...
Published (2009-09-28 11:32:00)
Re: Shaded lights are getting me down Quote: Originally Posted by Jabber Years ago, I replaced my headlights with an aftermarket set of projectors. The cutoff line looked really odd. Like this \____ \____ . The left edges weren't cutoff. Those lights were for a right hand drive market (Japan and Britain). For Left Hand Drive (Us, Canada, Europe) they look the opposite. This gives you a cut-off on the oncomming lane but lets the light...
mgb4tim
2
user's latest post:
Shaded lights are getting me...
Published (2009-09-25 14:21:00)
Re: Shaded lights are getting me down // Quote: Originally Posted by PriusLewis I have an old set of Lucas Square 8 fog lights (REAL fog lights from Back In The Day) that I plan to set behind the grille in my Gen II so I will have some REAL light to bring up on demand. Why do Brits drink warm beer? Lucas made the refrigerators.
indianagreg
1
user's latest post:
Shaded lights are getting me down
Published (2009-09-25 11:27:00)
Re: Shaded lights are getting me down I've also noticed that visibility is very limited on descents of short fairly steep hills. While you can see very well going down, you may have little idea as to what lays ahead in the road where it flattens out (without the hi-beams). There is a rather definite line at which light ends and darkness begins; the effect of the abruptness is to make seeing into the shadows very difficult. Greg
Habiru
1
user's latest post:
Shaded lights are getting me...
Published (2009-09-28 10:21:00)
Re: Shaded lights are getting me down I don't like the cutoff ... it's too low. I posted something asking how to adjust the height of the headlights but keep forgetting to actully do what was posted there. It's still light when I drive home from work so I don't drive at night often enough for it to REALLY bother me. But it's starting to get dark sooner so I may have to take a look to see if the height adjustment fixes...
aroide
1
user's latest post:
Shaded lights are getting me...
Published (2009-09-29 15:51:00)
Re: Shaded lights are getting me down I got traded in my 2007 Prius for a 2010 Prius V. And yes, the headlight aiming is scary. Things just pop out of the darkness as the line between bright (which is very bright) and dark is something like 2 car lengths in front of the car. I almost hit a coyote the other night. My wife has an 09 Acura MDX which does have a distinctive line between light and dark, but the line is MUCH further out in front of...
patsparks
1
user's latest post:
Shaded lights are getting me down
Published (2009-09-25 10:49:00)
Re: Shaded lights are getting me down Headlights need adjusting.
Jabber
1
user's latest post:
Shaded lights are getting me...
Published (2009-09-26 15:33:00)
Re: Shaded lights are getting me down The cutoff is a product of the projector style headlights. There is very little you can do about them short of actually cutting the metal inside the projector lamp and altering it. And that is NOT something you want to do. Years ago, I replaced my headlights with an aftermarket set of projectors. The cutoff line looked really odd. Like this \____ \____ . The left edges weren't cutoff. After putting...

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