just picked this up, 2 door model, 127k miles, runs like a champ, has the 3 button 4wd on the dash, none of the buttons light up and confirm what you are in, and i cannot feel it shift into 4 hi 4 lo, its drives like its in 2 hi but im not positive, when i turn in a parking lot or driveway etc., at full lock it acts like a 4wd on dry pavement, but doesn't "click" looking for traction, just worried its stuck in 4hi and im not realizing it and how to get it out, also switch on the dash bad or something else?