The ornamental design for a taillightsignature for a vehicle, as shown and described.
FIG. 1 is a front right perspective view of a tail light signature for a vehicle according to the present invention.
FIG. 2 is a front left perspective view of the tail light signature for a vehicle shown in FIG. 1.
FIG. 3 is a rear right perspective view thereof.
FIG. 4 is a front view thereof.
FIG. 5 is a right side view thereof; and,
FIG. 6 is a front view of the tail light signature for a vehicle that is shown in FIGS. 1-5, with the corresponding tail light mounted on a vehicle shown in de-emphasized and half-tone portions so as to illustrate environmental structure. These portions form no part of the claimed invention. More particularly, in FIG. 6, the inventive tail light signature is shown within the broken line, and the elements shown outside of the broken line form no part of the claimed invention, but are instead included to show environmental aspects thereof. Also, in FIG. 6 the inventive tail light signature appears only on the right rear of the vehicle. The invention contemplates another such tail light signature on the rear left side of the vehicle, as a mirror image.