GMC 2002 Yukon XL - Page 230

4-19
The following steps must be performed on each of the
push
-pins to remove the air dam:
1. Insert a tool into the
push
-pin slot and pull
downward until the
push-pin snaps loose.
2. While continuing to pull
downward on the
push-pin, squeeze and
turn the expandable end
of the push
-pin with a
tool until it releases
from the retainer.