There should be a button on the panel in front of shifter (1995 LX)
Your owners manual will explain how to reset that function.
I have a 1995 Ford Explorer XLT and there isn't a switch to turn off the passenger airbag like in the pick-up trucks
because they are computer speed limited to a 100 but if you take it to a shop they can turn off the limiter
To the left of the steering wheel, there are 2 dials and a knob, if you spin the far right dial all the way down until it clicks, the headlights will not turn on when it gets dark out or when you go through a tunnel etc.
Turn it back on and continue driving?
It is a recall. You should take it to a ford dealer. They will take care of it. Here is a link, that shows recalls for The Thunderbird. http://www.dealerrater.com/recalls/Ford/THUNDERBIRD/
Unscrew it
yes most MN12 Ford Thunderbird/Cougar parts as far as body will interchange
Check all your grounds. Battery to block and your headlight sockets.
if you are reffering to service enging light disconnect negative battery cable for 30 seconds and re connect it
The trun signal switch unit needs replacing. Take off plastic cover on steering wheel column; remove bad switch with 3 or 4 screws then reverse.
The oldest model of the Thunderbird was from 1954 when Ford brought the first model off the production line. The first Thunderbird was sold the in October of 1954.