Half circle light on dash with a line through it

it should be in your owners manual

copy and paste
https://www.dash-lights.com/jeep/renegade-dashboard-warning-lights/

check to see if you have the owners manual if so it should describe the dash lights and what they mean. or stop in to a dealership and ask it should be a non charge service as you just asking what it means and not asking them to diagnose the problem.

Antilock Brake System, If its by it's self it means there is a fault. If accompanied by the regular red brake light normally means the problem is with the regular hydraulic part of the braking system. It also means your Antilock system has been defeated.

A ROUND YELLOW CIRCLE LIGHT WITH LINES ON EACH SIDE MEANS BRAKE PROBLEMS FRONT BRAKES OR REAR BRAKES HAS A FAULT. NOW IF CIRCLE HAS LINES INSIDE YOUR POWER STEERING FLUID LOW NEED CHECKING.THE WARNING LIGHT WILL TURN OFF WHEN PROBLEM FIX.

dont know each manufacter makes up theses warnings you can find them in the owners manuel if you dont have one go to forein junk yard , go to dealership , try e-bay half price books and might be able to see them in a good old haynes repair manuel if you plan to keep car it will just get older and more stuff will pop up

orange circle with dashed lines each side indicates worn brake pads, circle with cross through indicates bulb failure. third orange light indicates brake light bulb faiure

have brakes checked.

A circle with lines around it - depends where it is -
If its a top left light, then it should be a circle with an exclamation mark in the middle, and two lines running part way round the outside (1 to 5pm and 7 - 11pm). Thats the handbrake and brake fluid light which comes on for about 3 seconds when you start the engine ... if it comes on at any other time - seek help.
If its top centre, and has ABS in the middle, then its the anti lock braking light. Similar to above, lights up for a few seconds at start.

Muffler with lines coming off it - are they pointing outwards from the circle, (with a thermometer in the middle = transmission oil temperature guage), or are they on the left and all parallel (which would be main beam indicator, which lights up blue when on)

If it's the red circle with three lines on each side, it's something related to the brakes. If I remember correctly, the lining.

This sounds like the low tire pressure warning light. The tires have small sensors on the back side of each valve stem that monitor your tire pressure. I live in the northeast and when the temperature really drops I get the same light. Usually once you get rolling the friction of the tire on the road heats up the air in the tire causing it to expand to it's proper pressure. You may want to check your pressures to ensure that they are inflated properly.