Hello. I am new to this forum and GMC Terrain. We bought a 2012 last week. I have a special needs sister who will ride in the front passenger seat three or four times a week. She goes on her own from a wheel chair to the seat. Her wheel chair folds and fits in the back with the rear seat pushed forward about 4 inches. Sunday we found that when you park on unlevel ground that would make the distance more from the ground to the seat she can not get into the Terrain. We did try all the above before the Terrain was bought but the vehicle was on level ground at the time and unlevel ground was not considered. We notice the passenger seat sits about 2-3 inches higher than the driver seat. Is there a way to remove part of or re position the frame of the passenger seat to lower the seat 2-3 inches. Life for her and us would be a little easier.