Transmission shifting hard and Trac off light is on?

It sounds like the VSS sensor when out, is the speedometer working? If not, here is the location of the sensor so you can change it out to help fix the problem. We should do a scan as well to see what codes come up.

This guide can help:

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

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Hello BABELIVE00,

Is the engine light or ABS light on? Any other lights on?

What about a vibration in the pedal when you are coming to a stop?

What about a rotational noise that gets louder as you drive faster?

It sounds like it could possibly be a wheel speed sensor, wheel bearing or possible speed sensor in the transmission.

I would start by checking the front suspension and see if anything has any play. I will add instructions on how to do this for you.

Make sure the front wheels are off the ground and the vehicle is on jack stands with the rear tires chocked so it won't move.

I would also take a light and take a look at the wheel speed sensors and harnesses that connect the to make sure there is no visible damage.

These sensors are mounted into the steering knuckle. You should be able to slide under the vehicle with a light and take a quick look.

Here is an article about wheel speed sensors and how to check them:
https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

This article will give you an idea of what to look for when inspecting wiring:
https://www.2carpros.com/articles/how-to-check-wiring

You will need a multimeter to perform this test. Home Depot has a brand called Klein which is a good in between for a do-it-yourselfer. I have added a picture for you.

Even if your engine light isn't on it would be a good idea to go to a parts store and have them put a code reader on it if you don't have one. There may be some stored codes that code help us identify the issue.

The reason we are looking at the wheel bearing and speed sensors is because these areas are high wear points on any vehicle. Also, if you have a wheel bearing issue it can be a safety hazard. So, I think we should check out these few things first and get into some more in-depth testing after that.

Please let me know if I can guide you through any of this testing or explain anything better. I am here to help.

Thank you,
Brendon