Adaptive Led Headlights (Alh) - Mazda Mazda3 2019 Owner's Manual

When Driving
i-ACTIVSENSE
Adaptive LED Headlights
(ALH)

▼ Adaptive LED Headlights (ALH)

The ALH are a system which uses the
Forward Sensing Camera (FSC) to
determine the situation of a vehicle ahead
or a vehicle approaching in the opposite
direction while driving at night to
automatically switch the illumination
range of the headlights, the illuminated
area, or the illumination brightness.
Refer to Forward Sensing Camera (FSC)
on page 4-206.
The ALH are controlled between high and
low beams as follows to assure the driver's
visibility without dazzling a vehicle ahead
or a vehicle approaching in the opposite
direction.
Glare-Free High Beam
This feature dims only the high-beam light
shone on the vehicle ahead.
The high beams will dim while driving at
a speed of about 40 km/h (25 mph) or
faster. When the vehicle speed is less than
about 30 km/h (19 mph), the beams switch
to the low beams.
NOTE
The headlight high-beam indicator light
turns on while the high beams are on.
4-90
*Some models.
*
Wide-Range Low Beam
This feature extends the illumination range
of the light cast by the low beams while
driving at a speed less than about 40 km/h
(25 mph).
Highway Mode
This feature shifts the illumination angle
of the light cast by the headlights upward
while driving on highways.
The distance in which the ALH can detect
objects varies depending on the
surrounding conditions.
CAUTION
Do not modify the suspensions or
headlight units, or remove the camera.
Otherwise, the ALH may not operate
normally.
Do not rely excessively on the ALH and
drive the vehicle while paying sufficient
attention to safety. Switch the headlights
between the high beams and low beams
manually if necessary.