Check the rear of the switch -some have a metal button on the side
when pushed allows you to pull the knob out of the switch assembly
In order to remove the headlight switch of a 1988 Cadillac Eldorado, you must first disconnect the negative cable from the battery and allow time for the capacitors to discharge. Unscrew the headlight switch, remove the wire plugs, and remove the switch itself. Insert a new switch and replace the wire plugs and screws. Reconnect the negative cable and test the new switch.
Behind the dash, on the headlight switch itself, there is a "pin" that you have to push in in order to pull out the light knob. Feel under the dash, the pin is toward the back of the switch. When you push it in, with your other hand, move the light knob in and out. It will come out. Then, you can remove the nut, take the switch out from behind the dash.
To replace the wiper/headlight switch, you must first remove the two screws(normally but maybe more, depending on model) that retain the steering wheel cover/horn button. this will give you access to the switch. remove retaining screws to allow removal of switch. replace in reverse order. easy as pie.
refer to repair manual available from any parts store haynes #36012 is a good one. Disconnect the negative battery cable; then the positive battery cable; let the car sit for at least two minutes before resuming work. Remove the front dash board trim. Remove the headlight knob withn a pointed screwdriver. Remove the two screws above the speedometer and guage cover. Remove the two screws that hold the dash on to the left of the steering wheel; do the same for the eight screws on the left hand side of the steering wheel. Start to the left and pop the dash board bezel from the dash. Remove the nuts and washers that hold the switch. Remove the two screws that hold the headlight switch bracket. Pull out the headlight switch and remove the three plug ins. Replace in reverse order.
Above the instrument cluster there are two screws. Remove them. On your headlight switch there is a slot that you can fit a small flat tip screwdriver into. You have to put the screwdriver in this slot and press towards the dash to release the tension spring that holds this knob in place. Pull the knob towards you as you are pushing the tension spring. Then gently pull the plastic frame that goes around the instrument cluster and radio and headlight switch. This should pop out all the way around. Now you should be able to get to the nut holding the headlight switch in place. After removing this nut you should be able to work the switch out the access hole near the instrument cluster. Then unplug the switch from the harness and install in reverse order. I have had to replace three of these on my 1990 Thunderbird. Above the instrument cluster there are two screws. Remove them. On your headlight switch there is a slot that you can fit a small flat tip screwdriver into. You have to put the screwdriver in this slot and press towards the dash to release the tension spring that holds this knob in place. Pull the knob towards you as you are pushing the tension spring. Then gently pull the plastic frame that goes around the instrument cluster and radio and headlight switch. This should pop out all the way around. Now you should be able to get to the nut holding the headlight switch in place. After removing this nut you should be able to work the switch out the access hole near the instrument cluster. Then unplug the switch from the harness and install in reverse order. I have had to replace three of these on my 1990 Thunderbird.
You need to remove the bumper cover in order to get at the lower bolt for the headlight assy.
Pull the light switch to the "on" position,then reach up behind the dash board to the back of the headlight switch,which isn't very far up the back of the dash board,feel around on the switch for a spring loaded button on the switch body,push the sring loaded button and pull the switch shaft out. After the switch shaft is out,there is a flat nut with slots cut on the front of it on the outside of the dash holding the switch to the dash board,turn the flat nut CCW to remove the nut. This should release the switch from the dash board,pull switch from the back of the dash,unplug switch.Replace in reverse order.
pop the clips that are holding the Electric window switch and pull the switch out replace it and place it back in with the clips. if you broke the clips you will have to replace them. they only cost 1.05 at Chevy shop....
In order to answer your question I will need the year of the car. 97
Prior to do any work on your 1967 Ford Mustang, you must disconnect the battery ground cable from the battery. Next, remove the two screws and lower the parking break and air control. In order to remove the control knob and shaft assembly, place the know in the full ON position. You will now be able to press the knob release buttom on the switch assembly.
Remove 2 screws to remove trim under headlight. Remove both mirrors to allow removal of trim under winsdhield. Remove 2 bolts and trim bracket at bottom of headlight holder. Remove 2 bolts at top, that holds trim bracket and top of headlight holder. Pull out the headlight holder. Unplug headlight electrical plug at rear of bulb. Remove headlight from holder by pulling retaining clips free. Install new headlight, but do not touch with bare hands. Install parts in reverse order. However, top bolts holding each mirror should be started first, then bottom bolts, and tighten evenly.
Gain access to the rear of the headlight housing. Remove the weatherproof rubber protective boot and remove the headlight bulb socket. Replace bulb and re-install in reverse order.