My tester included a Lane Keeping Assist System (LKAS) that presages the self-driving car. Edge the TLS too closely to a centerline or shoulder stripe and the system nudges the TLX back into its lane. At 50 mph on a curvy two-lane, LKAS steered happily until insisting that I resume control. With LKAS switched off, the TLX reverts to a conventional driving mode. When on, it acts only if the turn-signal indicator has not been engaged.
Section:Photo
