On the interior firewall to the left of the steering column
Ford vehicles have this switch, no GM vehicle use an inertia switch.
GM doesn't use a fuel pump reset switch (aka, inertia switch), that's a Ford thing.
On a 1989 Ford Mustang : The fuel pump shut off switch ( inertia switch ) is in the trunk / cargo area It is between the tail lights and is covered by an oval shaped rubber " plug "
Ford is the only company that have inertia switches.
If the vehicle is involved in a serious accident the inertia switch shuts off the fuel pump.
In the drivers footwell , the picture shows an access hole in the kick panel by the drivers left foot
According to the 2001 Ford Explorer Owner Guide : The fuel pump shut off switch ( inertia switch ) is located in the front passenger footwell , by the kick panel
On a 2000 Ford Windstar : ( Yes ) The fuel pump inertia switch ( shut off switch ) is located behind the service panel , in the cargo area , on the passenger side
my 92 is in the trunk.
If you are referring to the inertia switch, it is in the trunk.
According to the 1999 Ford Ranger Owner Guide : The fuel pump inertia switch is in the front passenger's footwell , behind the kick panel