This being my first car is it normal that when you raise up your windows thelights dims a bit inside the carand outside headlights. Thanks.

 

Sounds like a weak battery, or possibly a bad ground. Do the lights brighten back up as soon as the draw fom raising the window stops?

 

my guess is its just drawing off your alternator. cause if im right (which im not positive) the only thing your batery is used for is starting your car and after that your alternator does the job of powering your car and everything recharging your battery. so it should be just drawing power off your alternator resulting in lower output to your other items. hope this helps. anyone feel free to correct me if im wrong.

 

take yourcar to the local autozone or pepboys or advanced auto...you need to get your battery load tested and your alternator tested. If the battery goes bad or the alternator it can cause untold random problems for our car. My battery went bad and it caused my gauges to freak out at random times. The Ford tech that worked on my car said he has seen numerous mustangs come in with weird electrical probs and work great with only a battery change.

 

Yep has soon has I raise the windows up the lights go back to normal