Start engine light flashing orange?

For starters, my Mazda 6 is a 2014 (manufactured 2013, purchased Feb. 2013) and this is the first time I've ever noticed this. I got lucky and saw it as I cranked my windshield wipers in an unexpectedly heavy downpour. The issue is exactly as the subject says - my start engine light blinks orange when I press the brake to start the car and continues to blink orange while the car is running.

For what it's worth, I also need to replace part KDY0-46-040 (just ordered from Mazda Swag) - I'm not sure if that's related. I also changed the battery in my key fob (they've been in close proximity while I've been at home and read that the continuous communication can cause battery drain issues).

Hoping it's nothing dire that'll cause an unexpected heavy repair. Thanks.