Chevrolet 2000 Blazer Owner's Manual page 303

Then go to the front of the vehicle and release the
secondary hood release.
To open the hood, first pull
the handle inside the vehicle
on the lower driver's side of
the instrument panel.
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 lamp that comes on when you lift the hood.
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