Something to note regarding the CX-9 - on the base model trims, the headlights do not have LED "eyebrows", so the low beams at reduced brightness function as the DRLs. On the GT and higher trims, the headlights have LED "eyebrows", and the low beams only come on when you turn the headlight switch to "on". If the headlight switch is set to parking lights, only the "eyebrows" will be on. Thus, on higher trims, DRLs = LED eyebrows on, low beams off. On base trims, DRLs = low beams on, but at reduced brightness.
Hi guys, I have a 2017 CX-9 with automatic headlights. I'm concerned if my daytime running lights are working correctly. When I turn the knob to "off" position, the DRL should turn on when driving. The lights turn on, and look almost identical as when the knob is at the "headlights" position...
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On the US CX-30 and the Mazda3, it appears that only the Premium trim level gets a feature called "Signature LED headlight and taillight illumination". Without having seen one in person or at a local dealership, I would assume that this Signature illumination is what you're after (DRL = eyebrows on, low beams off).
To get a more definitive answer, call a local Mazda dealer and ask them to verify.