Rear left window won't go up on the Hyundai Genesis.

This is a known issue. Contact the dealership of Hyundai head office.

https://www.google.com/search?q=2012+Hyundai+Genesis.+The+radio+will+not+cut+off

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Does the rear light blink ?

Take the rear of the back seat out and get into the boot and release the boot lid

see the diagram and troublershooting and fix it. God bless you

I would check the coil those wires are probably on the same coil

HERE IS THE REAL QUESTION YOU SHOULD ASK OF THE DEALERS WHO ARE OFFERING 17" OR 18" TYRES FOR A TYRE SIZE THAT DOES NOT FIT YOUR EXISTING WHEELS......HAVE YOU GOT 17" OR 18"WHEELS???......225/45 ARE GOOD.

The dealership will supply, you might save money getting the whole corner from a salvage yard, (they will know what rear fits) often the knuckle and strut can bend with the lower arm.

try ebay .com

If they're rubbing on the brakes, it's most likely because with your V8 model, the front brakes are larger than those on the V6 model (it's not uncommon to see this, due to the greater power of your engine and higher speeds the car can reach). A spacer really won't help, because it moves the wheel outward, where you need more clearance in the inside diameter of the wheel. You'll need to find larger wheels to fit your car.

Still under warranty... have them repaired under insurance/warranty.