We claim the ornamental design for a vehicle rear lighting unit, as shown and described.
FIG. 1 is a rear perspective view of a vehicle rear lighting unit;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view of the vehicle rear lighting unit on a vehicle.
The broken lines are included for the purpose of showing environment and portions of the vehicle rear lighting unit that form no part of the claimed design.