Parts not available from GM??? Shift Handle

[johndjmix1]

I was under the assumption that an auto manufacturer must make parts available for 10 years after the model year of the vehicle.

The little button you press in my shifter has broken, so i called around looking for a new shifter.

Part number: 15848861 is no longer available from GM.

Is this some kind of mistake? I need this part. 2006 H2, lux edition.

--John