The 1994 Buick LeSabre Limited slowed down when its optional traction - control system became active.The system automatically cut back on engine power and gently applied anti-lock brakes, thus
indicating that I had hit a patch of icy road during a test drive along the Chesapeake Bay in Maryland.It was a good early warning signal that allowed the
driver to take corrective action and avoid disaster.Background: For
several years, the LeSabre has been America's best - selling full - size car, which is puzzling.