I just picked up this car as a runner for work. One thing I havent figured out yet is the interior lights. the only lights that come on when you open the door or touch the FOB are two lights in the driver and passenger foot wells. the overhead console lights, door lights, and the rear lights do not come on. I was wondering if there was a way to set this or if I should look for a short or cut wire. The console lights work when you push the buttons. The BCM has stored DTC 1 and 2 which I have not cleared or tracked down yet and that may be part of the problem. Just thought I would check with the group to see if anyone has ran across anything like this.
With the 00+ Bonnevilles, when unlock using the remote, the four overhead lights illuminate (2 in overhead console, 2 above rear doors), and the front footwells illuminate. I would think a 2000 Grand Prix to be the same, or similar but not entirely sure. I'll look into those DTC'* stored in the BCM.