My cousins Infinity M45 has been in and out of the dealer at least 6 times for electrical problems. They changed out the harness and a bunch of other things. He picked it up and the power seat, and both right front and rear windows didn't work. Infinity is saying it's the battery, it needs to be replaced and doesnt have enough juice to run those things. But his driver side windows work fine....

Are they B-S-ing him or what? If the car is running shouldnt the alternator have enough juice to power everything. And why would it power theleft wiondows but not the right windows?
its not the alternator. When the car is running everything works except the right side windows and the driver power seat. Even if the battery were dead, which it probably is, the alternator should run everything. I dont know an alternator that is "window specific" lol

When you are having this kind of problem you need to contact a Lemon Law firm that can help you get compensation or a possible full refund. This law applies to new or newly purchased car/trucks from a dealership. The Lemon Law applied to cars that have been in the shop four times for the same thing , you may have some rights that will need an attorney to help you with. Krohn and Moss Lemon Law firm on the Internet is the best and don't charge to speak with you. Good Luck and GOD Bless

Change the altanator. That simple.