While I thought this was normal, as I remembered my '99 GT always doing it, my friend said this is a definite problem. When I shift late at high rpms (nearly redlining it), the entire car just dims and the battery light comes on. What's the problem here, and do you have any explanation if this is normal? Of course, as soon as your shift, the battery light goes off and the car resumes normal operation. Never any sort of problem with this car for years, but I'm told high rpm battery light is not normal. Battery is new by the way. Any help would be much appreciated. Thanks.