Rich asked ....Is there any way to get at this switch to replace
it without removing the dash board?....
Yes.  Remove the cover over the instrument cluster.  Pull the connector
off of the BRAKE indicator light that is above the light switch.  There
are tabs on each side of the switch itself to depress.  Depress and pull
the switch out.  Expect a lot of jiggling and maneuvering.  You can
simplify this a lot, especially getting the switch back in, if you
loosen the whole cluster by taking out the four screw, one in each
corner, that hold the cluster to the dash.  Be careful on this,
especially the screw at the right front, very easy to loose.