Headlight .vs. DRL on Canyon
2016 Canyon SLT here. I've been wondering about the DRL function of the headlights .vs. the 'headlight' function. Originally I thought that maybe they run at lower power/wattage in DRL mode and then switch to a higher output when the AUTO lighting function triggers the headlights, but I swear I can't tell the difference. I've performed admittedly unscientific tests just manually turning on the headlights while sitting in a location that I can see the output (garage during the daytime, or maybe sitting behind another vehicle in traffic and watching the output in their bumper reflection).
I can't find anything specific about this in the manual. It seems to indicate that there is a difference between DRL and low beam lights, but I am wondering if anyone here knows the technical details in terms of wattage/lumen output because as I have noted, they look EXACTLY the same to me!
If this has already been covered, I apologize. I did some searches and there's lots of info on DRL override, but could not find anything like this question.
Thx in advance!
2016 GMC Canyon SLT: CCSB 4x4, 2.8L Duramax, Summit White, Bull Ring side wall anchors, AMP Research Powerstep, Rugged Cover Tri-Fold Tonneau, WeatherTech Mudflaps
Last edited by RandyNC; 05-15-2017 at 09:36 AM.