I took my Trailblazer in to replace a bad tail light and the technician told me that the Red tail light that is above the back window was out and would have to be replaced. This is the long bus bar across the top of the back window. When he told me that is would be about $350-$400 to replace the LED bar, I said to forget it and I wouldn't spend that kind of money on a light that isn't even required. It is just the principle of the thing and these little aggravations could bleed us money wise.