IS THERE ANYWAY I CAN FIX MYSELF OR HOW CAN I CHECK WHERE IS THE BAD PART FOR THE RED PS LIGHT THAT SHOWED UP IN MY CAR SCREEN, OR AROUND HOW MUCH DO THEY CHARGED TO GET IT FIXED? (TOYOTA PRIUS 2003)

The ignition coil on the number five cylinder may have a bad connection or bad power or ground control causing a misfire . Sometimes the coil itself may be bad .

check your voltage output from your alternator, if the car is fully electronic that can be your problem, also check the battery voltage as well

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Check under hood for power steering belt damage.

Check for power steering fluid leak on the floor

Check high and low side power steering hose for damage (crack)
Check the component(s) adjacent to the PS pulley and hose for sign for PS fluid.

Top off the ps reservoir and recheck for leak(s)

check your idle censor

Sounds like you have a bad ps pump from your description. You need to visually check for leaks on the ps pump, around cap, and from both pressure hoses from ps pump to find the cause.

It sounds that you have a problem with your car alternator charging system: it should be indicated by a charging warning red light being permanently on.
If you have a multimeter, you can check the voltage at your battery terminal:
- with motor off, the voltage should read around 12.8V with anything under 11 v indicating a 'shorted' bad battery.
- with motor running, the voltage at the battery terminal should be around 13.8V with any reading above or below that indicating that your car alternator or regulator is faulty.
ps. I am really surprised that you needed to get 3 replacement (new) car batteries: this can only be caused if you are actually 'cooking' them: this would be caused by your alternator regulator allowing a high (over 14V) voltage and thus 'boiling' the electrolyte away and damaging the battery plates!

you have to replace the seat frame rail asy. It comes with new motors. I would check the switches for proper power & operation anyway, but having owned & repaired this myself , I am sure you need the whole assembly. P.S. this is a somewhat involved replacement. remove the seat, remove the rail/motor assembly & replace. reinstall to seat then to car

Check the idle air control valve, if that goes bad the car will have a real weak or erratic idle.. Other things might be a clogged fuel filter or faulty fuel pump,or the throttle positioning sensor might be going haywire. hope this helps and good luck.

If only your brake light in middle of rear window works then your other bulbs are bad. If brake lights all work in the back than bulbs are good. If you put turn signal on right or left and the bulbs light in front and back then you need to change multifunction light control box under dash. My understanding is it cost $600 new. So I would try used.

I WOULD ALMOST BET THAT THE SHAKING OF THE CAR IS DIRECTLY RELATED TO THE CHECK ENGINE LIGHT, THUS ONE PROBLEM. IT COULD BE BAD INJECTOR(S) OR JUST POOR MAINTENENCE. WITH 88K ON IT I THINK IT WOULD BE SOMETHING MINOR. HOPE THIS HELPS. LET ME KNOW. THANKS FOR USING FIX-YA. THANK YOU IN ADVANCE FOR AN HONEST RATING AS WELL.