The ornamental design for a vehicledrainchannel, as shown and described.
FIG. 1 is a rear perspective view of the vehicle drain channel for a driver side, the passenger side drain channel being a mirror image thereof;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of inner channel of the vehicle drain channel is included for the purpose of illustrating environmental structure and forms no part of the claimed design.