Check engine light and traction control Symbol on with blinking HLO turned on?

This could be a speed sensor issue or something more serious. I would suggest we start with checking codes and finding out what codes we have. Here are a couple guides that will help with this. Clearly the ABS guide is not the traction control system but pulling the codes from these two systems are similar.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

https://www.2carpros.com/articles/abs-warning-light-on-easy-repair-guide

If you have a scanner that can pull these codes then it is pretty simple as it will just provide them for you. Here are a couple videos that will help as well:

The first is how to test a wheel speed sensor if we have any of these codes. If we do you can go ahead and do this test.

https://www.youtube.com/watch?v=rTtAnsOlZU4

The next is a video on how to pull ABS codes in case you need this as well.

https://www.youtube.com/watch?v=ANWVTh2RQoQ

Please run through this info and let us know what you find and we can go from there.

Thanks