Possibly, but not likely..

Try R and see if you have Back-up lamps..if you have start in P and lamps in R, most likely the sw is in adjustment.

What happens to these NSS is they get water in them from the road and in cold weather, the water freezes. stopping contact on the switching points. until the sw warms up.

A test for N adjustment is to hold the key in START position with left hand and move the shifter on each side of N..if it works off N center ,than the adjustment is likely just off a bit.. ..

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A Dalton