Reduce engine power, service trak and service traction came on after hitting a bump?

Please start a new question for the A/C problem, the reason the Reduced engine power, service trak and service traction light is on is usually because the ABS wheel speed sensor has gone out or the bearing hub where the sensor is located is starting to fail, to be sure you can raise the car on jack stands, front and then rear, and grasp the wheel and try to move it side to side to check for movement. If no movement is found let's run the CAN scan to see which sensor has failed.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is how to replace the hub/wheel speed sensor in case you need it. Check out the images (below). Please let us know what happens.