Lights get dim when you let down a window.

most likely your alternator is worn out and isn't charging the battery. the lights would go dim then the car will die. you should have seen a batt light.

batteries have no guaranteed life so it could be a battery
I would consider the problem more likely to be a loose battery terminal, faulty alternator , drive belt condition or tension and a problem voltage regulator
all of the above can be checked and tested by an accredited auto electrician

Check your alt.. alt voltage output should be at least 13.2, sounds like it's not charging and your possibly running off the battery, as for the dash and tail lights, there both on the same system, check the fuse.

check the battery voltage and alternator

i think your clutch may be failing and on its last leg.

try checking the flasher unit my try grtting a heavy duty flashing unit at your parts store they will know what your talking about when you ask for it

Could be a loose or dirty battery connection, poor battery, or alternator. Check all the cables and connections to your starter. Clean your battery posts. Have your alternator and battery checked. It sounds like you are either running off just the battery or just the alternator. One of them is not right.

The power window control panel just snaps in place. Usually, a small thin blade screw driver can be inserted at the edge of the panel, and the panel can be lifted up.
The switch is a sealed unit and it is very difficult to "jump".
If your dash lights dim, when the button is pressed, this may indicate a significant power draw. It most likely would be that the motor is bad.

Yes that is correct, you can repair the motor by taking it apart and cleaning the armature.

Try to only roll one at a time up or down if you push more than 1 button at a time it will put a strain on the battery also try getting your battery tested to see if a cell is out. good luck!