Not familiar with that TSB, nor do I have access to them, but am also not aware that actuator arms (rods) from vacuum motors to plennum doors have been a problem, other than cases when rod has been accidently knocked off.
Perhaps you could be more specific or quote from the TSB. Not aware of any recalls for this item on my cars. Going to a dealer with your VIN best way to check outstanding recalls on your car.
Removal of heating system behind dash is of course a major job. Replacement part from wrecker always a possibility.
Please provide car info.
