Why do LED running lights turn off while the turn signal is blinking?
 

I've noticed in several new vehicles the following scenario:

Vehicle is traveling with LED day-time running lights around/adjacent to the headlights
Vehicle activates turn signal indicator
Vehicle shuts off LED running light while turn signal indicator is flashing
LED running lights turn on once the turn signal indicator stops
Here are the cars I've seen seen this happen:

Jeep Grand Cherokee
Audi Q5
Kia Sportage
Ford Focus
Why don't the LED running lights stay on while the turn signal is on?
https://p.ssl.qhimg.com/dmsmty/120_8...g?size=300x200

https://ps.ssl.qhimg.com/sdmt/195_13...9e6b2203e7.jpg

usually the DRL (day time running lights) are brighter than turning lights. when the DRL is on it's hard to notice the turn signal.

usually the DRL are brighter than turning lights
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