On my 2012, the step and the awning have separate alarms, making different sounds (step is one beep per second from near the sliding door, awning is an intermittent squawk from under the passenger seat), but apparently newer models have just one alarm for both step and awning.
On mine, the step alarm only activates when there is some unidentified something blocking the step from retracting fully (even if it looks fully retracted, it's still not making good contact with the limit switch). Initially surprisingly to me, a hard stop on an incline usually causes the step to jar itself into the correct position and shut off the alarm.
Awning alarm will squawk at me sometimes when I hit a bump, pothole, or pavement joint hard enough to make the awning vibrate; the only thing holding the awning in the closed position is the tension on the fabric, and fabric stretches slightly under a load.
If I'm on a bad road and can't keep the awning alarm from intermittently squawking due to the vibration (all too common in Louisiana, home of bad roads), I'll stop the vehicle, get out my portable ladder, and wrap a couple of heavy-duty rubber bands around the front and rear ends of the awning to hold it closed until I get to my destination.
Engineering: Finding complex solutions to simple problems you didn't even know you had.