2020 Defender


The Lane Keep Assist (LKA) system is not active when:

  • Reverse (R) or Park (P) is selected.

  • The brake pedal is pressed.

  • A direction indicator is being used.

  • The road lanes are not available or in poor condition.

  • The road lane markings are not detected.

  • The vehicle’s speed is approximately below 64 km/h (40 mph) or above 180 km/h (112 mph).

  • Driving in lanes narrower than approximately 3 m or wider than approximately 4 m.

  • Turning in tight road bends.

  • Dynamic Stability Control (DSC) is active.

  • An Anti-lock Braking System (ABS) event has occurred.

  • A fault occurs in the system.

  • The driver has applied excessive steering force.

The LKA system does not operate if:

  • The road edges are unmarked.

  • The windscreen area in front of the rear-view mirror becomes blocked by stickers, mud, snow, debris, etc.

  • Adverse weather conditions exist. For example, heavy fog, rain, or snow.

  • The driver has applied a counter steering input that is greater than the steering input from the LKA system.

The instrument panel displays messages to inform the driver of any performance or system issues.


If a system fault has been detected with the instrument panel or Head-Up Display (HUD), the LKA continues to operate as intended.