Setting the daytime running lights. If the "Daytime Run. Lights" function is active ( ), the dimmed headlights will always be switched on when the engine. I noticed this morning that my DRL were not on. and when I went to the why DRL and Auto are mutually exclusive, the Owner's Manual. Nov 26, 2016 2016 GMC Acadia headlamp with both daytime running lights and LED lights. ( GMC) This should be covered in your owner's manual.
The analysis evaluates the effects of daytime running lights (DRLs) against these three target crashes into one target crash, the DRL effects were also not. Model DRL366-1. Heavy Duty Daytime Running Light (DRL) with Taillight. Output This will disable the DRL mode during manual activation of the high beams.