A sinking driveway is reporting on the soil, not the concrete.

Sinking or Settling Driveways: diagnosed and explained.

A settling driveway rarely drops all at once. It starts as a low corner that holds water after rain, a slab that tilts toward the lawn, or a step forming where the driveway meets the garage floor or the street apron. You feel it before you study it: the daily jolt in the tires, the scrape of a low bumper. What is happening underneath is simple. The soil supporting the slab has compressed, shrunk, or washed away, leaving a void, and concrete cannot bridge a gap for long. In California, Arizona, and Nevada the movement is usually driven by clay soil that swells when wet and shrinks when dry, by runoff eroding the base along the slab edges, or by fill under the driveway that was never compacted for vehicle loads. Each wet and dry cycle enlarges the void, so the settlement you see this year is smaller than the settlement you will see in two more. The good news: a driveway caught while the slabs are still sound can almost always be lifted back to level without demolition.

For the repair side of this, the concrete leveling solutions page lists every method Dalinghaus installs, including the ones that fix problems other than sinking or settling driveways.