Cadillac 2013 ATS Owner's Manual page 240

10-4 Vehicle Care
2. Go to the front of the vehicle and
move the secondary bonnet
release lever toward the right
side of the vehicle.
3. Lift the hood.
To close the bonnet:
Before closing the bonnet, be sure
all filler caps are on properly. Then,
bring the bonnet from full open to
within 152 mm (6 in) of the closed
position. Pause, then push the front
centre of the bonnet with a swift,
firm motion to fully close the bonnet.