An ornamentaldesign for a vehicle lower grille, as shown and described.
FIG. 1 is a bottom plan view of the vehicle lower grille;
FIG. 2 is a front elevational view of the vehicle lower grille;
FIG. 3 is a left side elevational view of the vehicle lower grille;
FIG. 4 is a right side elevational view of the vehicle lower grille; and,
FIG. 5 is a perspective view of the vehicle lower grille.
The broken lines that enclose an internal boundary are for illustrative purposes only and form no part of the claimed design. The surface areas shown in faded lighter tones form no part of the claimed design.