To replace the multi-function switches, first disconnect the cable from the negative battery terminal and remove the steering column covers. Next, remove the screw securing the switch to the steering column, noting that 2011 and later models have only one multifunction switch on the left side. Slide the switch away from the clock-spring to disengage the tabs, disconnect the harness connector, and remove the switch, with installation being the reverse of removal. For the headlight switch, again disconnect the cable from the negative battery terminal. On 2010 and earlier Grand Cherokee models, the headlight switch is part of the multi-function switch; use a trim removal tool to carefully pry the headlight switch assembly out of the knee bolster panel, disconnect the electrical connector, and remove the switch, with installation being the reverse of removal. For Durango models, turn the dial on the headlight switch to the OFF or "O" position, push the dial inwards, and rotate it clockwise to engage the release pins, then continue rotating until it points to the ON position to release both pins. Pull the switch out of the mounting hole to access the harness, disconnect it, and remove the switch. Before installing, rotate the dial back to the OFF or "O" position to extend both retaining tabs, connect the electrical connector, and insert the headlight switch into the hole, pushing firmly until it snaps into place with an audible click, followed by reversing the removal steps for the remainder of the installation.