The ornamental design for a vehiclelightingsystem, as shown and described.
FIG. 1 is an isometric view of a vehicle lighting system;
FIG. 2 is a front plan view of the vehicle lighting system;
FIG. 3 is a top view of the vehicle lighting system;
FIG. 4 is a left side plan view of the vehicle lighting system;
FIG. 5 is a right side plan view of the vehicle lighting system;
FIG. 6 is a bottom view of the vehicle lighting system; and,
FIG. 7 is a back plan view of the vehicle lighting system.
The broken lines shown in the drawings are for purposes of illustrating the environment for the vehicle lighting system and form no part of the claimed design.