Chrysler SRT Viper Owner's Manual page 29

Rear Panel Manual Lock Cylinder
To unlock the liftgate with the RKE transmitter, press the
LIFTGATE button on the RKE transmitter two times.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 27
Once unlocked, the liftgate can be opened or closed. To
open the liftgate, press the LIFTGATE RELEASE switch
located under the right side of the tail panel, which is
located below the liftgate, then pull the liftgate open with
one fluid motion.
Pull Up On The Liftgate
2