We have a 100+ pound Great Pyrenees. She has gotten on the dash before but usually likes to sleep on the floor while we are gone, or while we are there. She has never damaged anything on the dash so we really don't think it is a big deal. If she wants to look outside the windshield when we are parked, and doesn't bark or cause any other problems, we don't care. She NEVER tries to get up on the dash when we are moving. She has gotten some looks from passing strangers in an RV park who see her in the windshield and has had her picture taken numerous times.