This is just to hopefully save someone from the frustration I just went through for the last hour and a half. In short, one should just ignore the manual bit about flashing daylight running lights in the setup for Homelink for garage door openers. Maybe it's my opener, a new Liftmaster, but I was never able to see the flashing DRL signal that the car had learned the transmitter code. After ignoring the fact that I didn't see a flashing DRL signal, setup went fine by just assuming the car had learned the transmitter. Yes, the normal DRL functionality works as it should.