To begin, apply the parking brake and place the shift lever in Neutral. For models from 2004 and earlier, carefully pry the shift knob button from the shifter and remove the shift knob retainer from the rear of the opening, then unscrew the shift knob from the shift lever, with installation being the reverse of removal. For models from 2005 and later, rotate the shift knob trim ring counterclockwise while pulling down on the ring; once released, push the ring and boot down to expose the set screw. Remove the set screw and pull the knob up and off the shift lever, with installation again being the reverse of removal.