2016 Discovery 4

AUTO HIGH BEAM ASSIST (AHBA)

This feature automatically selects and deselects high beam, under specific conditions of road lighting and in the absence of other vehicle’s lights. The system is only active when the ambient light drops below a predetermined level.

NOTES

It is not recommended that Auto high beam is used while driving off-road.

For Auto high beam to become operational, the lighting switch must be in the Auto position (4), with low beam headlamps selected.

The system will only activate when the vehicle's speed exceeds 25 mph (40 km/h). The system will deactivate when the vehicle's speed drops below 15 mph (24 km/h).

To manually select high beam, move the lighting control to the high beam position, as normal. To return to Auto high beam, move the lighting control back to the central position.

To manually override to low beam from high beam, pull the lighting control to the flash position and Auto high beam will be canceled. To return to Auto high beam, push the lighting control to the high beam position and then return it to the central position.

A green warning lamp in the Instrument panel illuminates when Auto high beam is selected.

To switch off Auto high beam, turn the lighting switch from Auto to headlamps on.

This feature can be disabled/enabled via the Vehicle Set-up menu (see INSTRUMENT PANEL MENU).

NOTES

The following may affect the operation of Auto high beam:

  • Highly reflective road signs.

  • Dimly lit road users, for example, cyclists or pedestrians.

  • Adverse weather conditions, for example, rain or fog.

  • Dirty or obscured sensor.

  • Dirty, damaged or fogged windshield.

  • Oncoming vehicles partially obscured by a central highway barrier.

  • An icy or frosted windshield.

NOTES

Make sure to defrost the windshield during winter conditions.

NOTES

The system cannot be relied upon to activate or deactivate high beam in all possible circumstances. It remains the driver’s responsibility to correctly use the headlamps at all times.

NOTES

Make sure that the sensor on the back of the rear-view mirror is not blocked or obstructed.