GMC 2002 Yukon Denali Owner's Manual page 363

Underhood Fuse Block The underhood fuse/relay block is located near the
battery in the engine compartment. See "Engine
Compartment Overview" in the Index for more
information on its location. Lift the cover for access
to the fuse/relay block.
You will see fuses to the top right of the fuse/relay block
once you remove the cover. These are spare fuses and
can be used accordingly.
You can remove fuses with a fuse extractor. The fuse
extractor is located in the fuse/relay block. To remove
fuses if you don't have a fuse extractor, hold the end of
the fuse between your thumb and index finger and pull
straight out.
6-65