I have just sold my 2005 Bonne. At 88k it'* transmission died.
My owning GM product is history now. In order I lost transmissions on:
1998 Olds 88
2001 Pontiac Montana
2005 Bonneville
All had less than 95k miles, all went without warning.
So.....time for something new.
But I truly appreciate the great information you all have given me, both specific to my needs and good general info.

Thanks so much to one and all!

Glad we were able to help you out, sorry to see you leave. Best of luck to you.

We've had a lot of members pass through these digital doors, but I've got to say, that'* probably the worst luck I've ever seen.

I hope you have better times with whatever you drive next.

Sorry to hear about your problems. Did you buy these cars used? What kind of driving did you typically do? Any trailoring?

The sad part is each of those vehicles has the same transmission.

Hopefully conversion to Dextron VI reduces the failure of these transmissions.