GMC 2007 Sierra - Manual (Page 479)

Hood Release
To open the hood do the following:
1. Pull the handle with
this symbol on it. It
is located inside
the vehicle to
the lower left of the
steering wheel.
2. Then go to the front of the vehicle and pull up
on the secondary hood release located near
the center of the grille.
3. Lift the hood.
Before closing the hood, be sure all the filler
caps are on properly. Then pull down the hood
and close it firmly.
479