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Enable daytime running lights with HID's?

  • Yes

    Votes: 3 33.3%
  • No

    Votes: 6 66.7%
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2015 Forester XT Touring w/EyeSight
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479 Posts
Discussion Starter · #1 ·
A while back I had HID's installed in my 2005 Outback XT Limited. Daytime running lights disabled.

I initially told the installer I wanted the DRL enabled, so he ordered some additional parts.

It's been a while, and I kind of got used to not having the DRL. Just didn't miss them.

I dropped the car off for some other odds & ends (cabin air filter, Rally Armor mud flaps) and to have the DRL enabled.

Got the call tonight that it's all done -- "bypass" complete.

Now I'm starting to have second-thoughts about the DRL. Seems like they will just wear out my HID's prematurely. I very seldom drive at night, so the HID's would probably last "forever" with DRL being enabled.

Thoughts?
 

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Car: 2008 Tribeca, 2010 LGT, Sold: 2005 XT Limited
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2,926 Posts
I suppose some where there is a study saying DRL decrease your chances of being killed in an accident by 0.00001% so the NSTB insisted they be implemented.

But I don't see a need for them, they were burning my bulbs out prematurely, so I pulled the fused.

The issue with Subaru's implementation of them, is that it is really easy to drive around at night without turning on your headlights because they DRL are so dang bright. Then you don't have tail lights, a significant risk.

Tom
 

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Car: 2008 Tribeca, 2010 LGT, Sold: 2005 XT Limited
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2,926 Posts
Yes, here's the study:

"

Nearly all published reports indicate DRLs reduce multiple-vehicle daytime crashes. A study examining the effect of Norway's DRL law from 1980 to 1990 found a 10 percent decline in daytime multiple-vehicle crashes. 1 A Danish study reported a 7 percent reduction in DRL-relevant crashes in the first 15 months after DRL use was required and a 37 percent decline in left-turn crashes. 2 In a second study covering two years and nine months of Denmark's law, there was a 6 percent reduction in daytime multiple-vehicle crashes and a 34 percent reduction in left-turn crashes. 3 A 1994 Transport Canada study comparing 1990 model year vehicles with DRLs to 1989 vehicles without them found that DRLs reduced relevant daytime multiple-vehicle crashes by 11 percent. 4

In the United States, a 1985 Institute study determined that commercial fleet passenger vehicles modified to operate with DRLs were involved in 7 percent fewer daytime multiple-vehicle crashes than similar vehicles without DRLs. 5 A small-scale fleet study conducted in the 1960s found an 18 percent lower daytime multiple-vehicle crash rate for DRL-equipped vehicles. 6 Multiple-vehicle daytime crashes account for about half of all police-reported crashes in the United States. A 2002 Institute study reported a 3 percent decline in daytime multiple-vehicle crash risk in nine U.S. states concurrent with the introduction of DRLs. 7

Federal researchers, using data collected nationwide from 1995 to 2001, concluded that there was a 5 percent decline in daytime, two-vehicle, opposite-direction crashes and a 12 percent decline in fatal crashes with pedestrians and bicyclists. 8 However, a 2008 federal study concluded that DRLs have no significant effect on either of these crash types."
 
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