2000 Sienna Front Brake Lock

Driveing on local street, I felt the van was somehow dragging. I pulled over and noticed the drive side front wheel was smoking and it's burning hot. I waited about 10 minutes and start the car, driving home with no problem.

The second day it happened again on highway.

Anyone experienced this and knows what might be the problem? Thanks.

Have someone check the brake caliper and the flex hose to the caliper.