I had intermittant problems with my step during a Florida trip. When it stuck it was usually in. But it occured to me that if it stuck out I was in trouble. You might want to scoot under and unplug the two wire connector to the motor. Then you know it won't start working when you don't want it to. After I got home I hooked it back up and it started working again. I lubed all the bearings and pivots and it actually is pretty smooth now.
2001 Damon Daybreak, 2012 Honda Fit (toad)
2000 Tahoe Toyhauler, 2007 GMC Denali
2011 Harley Softail, 2010 Spyder RTS,"23" T-Bucket