1badgmc
I'm Awesome
I am talking about backing your average unlit driveway with your average car.
With 20% on the suburban I roll down my windows to back into my garage. That's with the little rinky garage door opener light.
But like I said, the threshold is different for each person. With 1% on the rear windows of my Suburban (5% on factory 20%) I have never once rolled my windows down when backing at night. The light from my reverse lights is plenty. With 1.75% on the rear windows of my CTS (35% and 5%) I've never rolled the windows down to back. Both have 30% on the front doors.
Now, my '91 has 5% on the doors and 2 layers of 5% on the rear window. In that one I DO roll the windows down to back up.