Tailgate - GMC 1999 Sierra 1500 Pickup Owner's Manual

Features & Controls
Tailgate
I.
K2232
You can open the tailgate by lifting up on its handle while pulling the tailgate
toward you.
To shut the tailgate, firmly push it away from you into the latch.
When you put the tailgate back up, pull it back towards you, to be sure it
latches securely.
Quick-Release Tailgate
A
K2346
2-8