Rear lamp on vehicle liftgate

FIG. 1 is a front view of a rear lamp on vehicle liftgate showing our new design;

FIG. 2 is a right view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a perspective view thereof in context.

The overexposed or faded features of the motor vehicle exterior are provided for the purposes of illustrating portions of the article that form no part of the claimed design.