2009 Mitsubishi Outlander KEYLESS ignition STIFF

My husband's and my new Mitsu Outlander has a keyless ignition lock that is very STIFF and hurts my arms to turn the "key." The dealer told me to take out themanual key and use it, but even that is hard to turn, even with both hands on the manual key. I am getting severe elbow (tendonitis) problems. There is no way my arms are going to last, doing this. Thank you.