Adaptive Led Headlights (Alh) - Mazda 3 2020 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 4-229.
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.
4-108
*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.