If the key is stiff to turn the problem might not be with the switch or Ignition Lock Cylinder but it might just be a problem with the key itself. If an automobile has an automatic transmission and the shifter is the floor console-mounted shifter the Park/Lock cable may need to be adjusted and if so is possible. In the NEC steel column, this cable is faulty within the steering related to it then the whole column has to be replaced. For the manual transmission cars, the small button located right behind the Ignition Lock Cylinder may be damaged, for which the steering column will have to be replaced. To retain the Ignition Lock Cylinder, the key should be inserted, shifter triggered to the Park in case of the automatic cars and then the steering column covers, the keyless entry module, and the circular ring around the Ignition Lock Cylinder are to be removed. Rotate the key anti-clockwise to bring the switch into the 'on' position and then use a small punch or any other tool in shape of a punch to change the position of the switch by inserting the tool through the hole at the bottom of the switch while turning the key to outside. The key could be removed as the cylinder was slided out. For a new cylinder, there is an insertion of the key, moving back to the 'on' position, correct positioning of the key inside of the required housing and finally, sliding it until it settles into the right position. Finally, turn the key to the Lock position and perform the reverse of the instructions mentioned above in order to install the lock. When replacing the ignition switch you have to take out the Ignition Lock Cylinder, then the mul-function switch and then remove wiring. A Torx screwdriver for the purpose is to be used to unscrew the switch and when it is done, the switch is to be removed by pulling it in a line with the top end of the terminal. During installation, one will have to switch them on before proceeding to twist and finally reverse the procedure followed in removing it.