Does anyone know news platform about luxury cars?can any body tell me?

No , clean your throttle body , and also that has an electronic throttle body so it may need a re-learn procedure done , however unlikely it needs a relearn i have inly encountered re-learn issues on high end luxury cars

Look up the Platform letter of the car, any other Saturn that uses the same Platform will likely bolt in. Here is an example of a platform letter, a 1990 Mustang is "F" body platform. A 1989 Olds Cutlass is a "G" and so on. Sorry I don't know Saturn's, but if you google it I'm sure you can locate the info.

You have upscale - luxury ?
It's separate from BCM .
Headlamp Control Module (Luxury)
Lower center of the IP, to the right of the right side steering column support bracket

Try a salvage yard if nothing else get a use board for a lot less money.

if there were one it would be on the throttle body also you can read the data sticker in the engine compartment and it will tell you if there is adjustments

This could be some of the following:
plug wire off
plug wires switched
small rodent chewing wires
bad gasoline

Pontiac bills the Bonneville as "Luxury with Attitude." That's an accurate description, given its basis on Cadillac's Seville platform and available 240-horse supercharged V6 engine. If traditional Pontiac styling twists your crank, and you want a large sedan packed with performance and features, the Bonneville is your kind of ride.--------------------------------------------------------------------------------------
Car Airbag Reset Tool

Any auto salvage yard can look this up in there cross reference books, we however do not have that luxury

This is a hard job with lots of small springs and check balls, i would suggest that if you are not a trany rebuilder that you not mess with this one. anyone will tell you a ford taurus ****** are the wrost. these trannys are junk and 90% of the time it has nothing to do with the valve body but rather the pinion gears or clutches and band go bad. better off replacing it. there are bolts on the valvebody that cant be removed or parts come apart behind it.good day, sorry for the bad news, here are some diagram of it.

Maybe body lite or look in fuse box lid and it will tell you what each fuse controls,,or owners manual