Has anyone tried these? It costs $25 the first year and $15 each subsequent year to subscribe but they look to be pretty detailed. There are free demos you can look at. One just happens to be an '03 Bonneville SE. I'm curious.
I have 6 different subscriptions, as well as a FSM for my car, and the GM DVD. Each has its plusses. I'll probably keep most of my alldata subscriptions as I can access it anywhere I can get online. I don't always have my FSM and DVD with me. It'* not anywhere as detailed as the FSM but can be a nice quick reference.
Yes, they do have one for the supercharged engine. I don't recall exactly how they ask for that information, though. Either by vin category (vin 1), or simply asks if it'* supercharged. The signup is quite easy.
It'* a nice, quick reference guide but not a replacement for the factory service manual. If your planning on involved work and troubleshooting on your car, you'll probably still want to see about getting one.