I have posted before about the blind spot warning system in my Gen 2 --the pathetic amber micro light in each rearview mirror-- and how it is essentially useless- poor for attention-getting in daylight and lost in a sea of reflected headlights at night. But there is hope: I have just seen the perfect-for-me system at work in a new Nissan Rogue ad on TV. A red LED in the small black triangular plastic piece inboard of the mirror lights up and an audible beep sounds when a car enters the blind spot. So simple. I plan to retrofit my Volt as soon as I learn how to remove the door panels without damage. Come on, Chevy, make this change. It should cost less than the fancy mirror now required. And DOT: mandate this as a a U.S. standard.