Chevrolet 1994 Blazer Owner's Manual page 243

Lift the hood, release
the hood prop from its
retainer and put the
hood prop into the slot
in the hood. You may
have a light that
comes on when you
lift the hood.
Before closing the
hood, be sure all the
filler caps are on
properly. Then lift the
hood to relieve
pressure on the hood
Prop.
6-7