The ornamental design for a lawncarevehicleheadlamp, as shown and described.
FIG. 1 is a top perspective view of a lawn care vehicle headlamp in accordance with an embodiment of the present invention;
FIG. 2 is a front view of the lawn care vehicle of FIG. 1;
FIG. 3 is a left side view of the lawn care vehicle of FIG. 1;
FIG. 4 is a right side view of the lawn care vehicle of FIG. 1; and,
FIG. 5 is a top plan view of the lawn care vehicle of FIG. 1.
The broken lines of FIGS. 1-5 are illustrative of the visible environmental structure of the lawn care vehicle headlamp and form no part of the claimed design.