You'll have to pull the old one straight off the shaft. Try twisting it as you pull, they are usually stuck on there pretty good.
it sounds like your neutral safety switch
The dash cluster needs repair. This is not a DIY job. Take it to a dealership.
Should be a removable panel under steering column. where adjusting screw is located Place gear shift in neutral to adjust
Is this a standard transmission, or an automatic? automatic
Automatic or manual.. That's a broad question
Remove the linkage off of the trans and shift it there.
This question has already been answered.
Check
VERY CAREFULLY.
I doubt very much that the knob will come off of the automatic column shifter.
To remove the shift kit from a 2005 Buick LaCrosse CXL, first ensure the vehicle is in park and the ignition is off. Disconnect the battery to prevent any electrical issues. Then, remove the center console by unscrewing the necessary fasteners and carefully lifting it away to access the shift assembly. Finally, detach the shift kit components, following any specific instructions from the manufacturer's manual for reassembly.
Remove the engine and drive shaft