GMC 1995 Safari Owner's Manual page 212

NOTICE:
If you need a new cap, be sure to get the right type. Your dealer
can get one for you. If you get the wrong type, it may not fit or
have proper venting, and your fuel tank and emissions system
might be damaged.
Checking Things Under the Hood
Hood Release
To open the hood, first
pull the handle inside
the vehicle on the
lower driver's side of
the instrument panel.
Then go to the front of
the vehicle and release
the secondary hood
release.
6-6