Chevrolet Silverado 4500HD 2022 Owner's Manual page 272

270 Vehicle Care
2. Carefully tilt the hood forward using the
front of the hood, where indicated by
arrows, until it comes to a vertical stop.
3. The hood actuator lock, located on the
passenger side, will lock to secure
the hood.
Warning
To avoid personal injury, make sure the
hood is fully open before performing
underhood service. If the hood is not
fully opened, the engine could start. You
or others could be injured.
Before closing the hood, be sure all the filler
caps are on properly.
To close the hood:
1. Lift up on the hood actuator strut lock,
located on the passenger side, to unlock
the actuator strut and allow the hood to
be closed.