I would try putting some kind of cover over the "riser" portion of the steps so the dog doesn't look through the steps when trying to go up. Maybe even hang a dark piece of plastic or cardboard from the top rear of each step to cover the opening while looking at it from the front.
Edit: I knew I had seen it somewhere. Take a look
here for an idea of what I am talking about.
๐Picture from Torklift.com
Barney
2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD, 1997 Ram 2500 5.9 gas engine