Hey Scotty, while driving my 2010 Acura RDX (194xxxkm) I suddenly get a the yellow brake light in my dash with the screen saying to check the brake system.

This only seems to happen in temperatures colder than -18°C. Here in Alberta we’ve been in a cold snap with temperatures from -10°- -42°C regularly. When I turn the car off and back on the light is gone and it doesn’t come back for the rest of the day, until the next day I drive in the cold. 
I’ve scanned for codes and couldn’t find anything. Brakes still always feel good and firm, no squishiness or anything out of the ordinary.

is this anything to worry about? Or is the cold just tripping something?