Driving -> AHB (Automatic High Beam) for Your Toyota bZ4X SUV Second Generation (2025-2026)

250  
5-3. Operating the lights and wipers  
Turning on the high beam  
headlights  
AHB (Automatic High  
Beam)  
The Automatic High Beam  
uses a front camera located  
on the upper portion of the  
windshield to detect the  
brightness of the lights of  
vehicles ahead, street-  
lights, etc., and automati-  
cally changes the head  
lights between the high  
beams and low beams.  
1 With the headlights on, push  
the lever away from you to  
turn on the high beams.  
Pull the lever toward you to the  
center position to turn the high  
beams off.  
WARNING  
For safe use  
Do not overly rely on the Auto-  
matic High Beam. Always drive  
safely, taking care to observe your  
surroundings and turning the high  
beams on or off manually if nec-  
essary.  
2 Pull the lever toward you and  
release it to flash the high  
beams once.  
You can flash the high beams with  
the headlights on or off.  
To prevent unintentional  
operation of the Automatic  
High Beam  
When it is necessary to disable  
the system: P.259  
Using the Automatic High  
Beam system  
1 Press the Automatic High  
Beam switch.  
Owners Manual_USA_M42C01_en  
251  
5-3. Operating the lights and wipers  
front of the vehicle  
2 Turn the headlight switch to  
the or position.  
• When vehicles ahead are repeat-  
edly detected and then hidden  
due to repeated curves, road  
dividers or roadside trees  
• When a vehicle ahead  
approaches from a far lane  
• When a vehicle ahead is far away  
• When a vehicle ahead has no  
lights  
When the headlight switch lever is  
in the low beam position, the AHB  
system will be enabled and the  
AHB indicator will illuminate.  
• When the lights of a vehicle ahead  
are dim  
• When a vehicle ahead is reflecting  
strong light, such as own head-  
lights  
• Situations in which the sensors  
may not operate properly: P.263  
The headlights may change to the  
low beams if a vehicle ahead that  
is using fog lights without its head-  
lights turned on is detected.  
Automatic operating condi-  
House lights, street lights, traffic  
signals, and illuminated billboards  
or signs may cause the high  
beams to change to the low  
beams, or the low beams to  
remain on.  
tions of the high beams  
When all of the following condi-  
tions are met, the high beams will  
illuminate automatically:  
5
• Vehicle speed is approximately 21  
mph (34 km/h) or more.  
The following may change the tim-  
ing at which the headlights  
change to the low beams:  
• The brightness of lights of vehi-  
cles ahead  
• The movement and direction of  
vehicles ahead  
• The distance between the vehicle  
and a vehicle ahead  
• When a vehicle ahead only has  
lights illuminated on one side  
• When a vehicle ahead is a two-  
wheeled vehicle  
• The condition of the road (gradi-  
ent, curve, condition of the road  
surface, etc.)  
• The number of passengers and  
amount of luggage  
• The area ahead of the vehicle is  
dark.  
• There are no vehicles ahead with  
lights on.  
• There are few streetlights or other  
lights on the road ahead.  
If any of the following conditions  
are met, the headlights will  
change to the low beams:  
• Vehicle speed drops below  
approximately 17 mph (27 km/h).  
• The area ahead of the vehicle is  
not dark.  
• There is a vehicle ahead with  
lights on.  
• There are many streetlights or  
other lights on the road ahead.  
Front camera detection  
The headlights may change  
between the high beams and low  
beams unexpectedly.  
In the following situations, the high  
beams may not be automatically  
changed to the low beams:  
• When a vehicle cuts in front of  
your vehicle  
Bicycles and other small vehicles  
may not be detected.  
In the following situations, the sys-  
tem may not be able to correctly  
• When another vehicle crosses in  
Owners Manual_USA_M42C01_en  
252  
5-3. Operating the lights and wipers  
detect the brightness of the sur-  
roundings. This may cause the  
low beams to remain on or the  
high beams to flash or dazzle  
pedestrians or vehicles ahead. In  
such a case, it is necessary to  
manually change between the  
high beams and low beams.  
• When there are lights similar to  
headlights or tail lights in the sur-  
rounding area  
• When headlights or tail lights of  
vehicles ahead are turned off,  
dirty, changing color, or not aimed  
properly  
• When the headlights are repeat-  
edly changing between the high  
beams and low beams.  
switch lever to the high beam  
position then pull it to the original  
position quickly 10 times, then  
leave the lever in its original posi-  
tion.  
4 If the sensitivity is changed, the  
Automatic High Beam indicator  
will blink 3 times.  
Turning the high beams  
on/off manually  
Changing to the high  
beams  
Push the lever forward.  
• When use of the high beams is  
inappropriate or when the high  
beams may be flashing or daz-  
zling pedestrians or other drivers.  
• When the vehicle is used in an  
area in which vehicles travel on  
the opposite side of the road of  
the country for which the vehicle  
was designed, for example using  
a vehicle designed for right-hand  
traffic in a left-hand traffic area, or  
vice versa  
The Automatic High Beam indicator  
will turn off and the high beam indi-  
cator will turn on.  
Pull the lever to its original position  
to enable the Automatic High Beam  
system again.  
• When it is necessary to disable  
the system: P.259  
• Situations in which the sensors  
may not operate properly: P.263  
Temporarily reducing front  
camera sensitivity  
The sensitivity of the front camera  
can be temporarily reduced.  
Changing to the low beams  
1 Turn the power switch off with  
Press the Automatic High Beam  
switch.  
the following conditions met.  
The headlight switch is in  
or  
The Automatic High Beam indicator  
will turn off.  
position.  
Press the switch to enable the  
Automatic High Beam system  
again.  
The headlight switch lever is in the  
low beam position.  
The Automatic High Beam switch  
is on.  
2 Turn the power switch to ON.  
3 Within 60 seconds after perform-  
ing step 2, push the headlight  
Owners Manual_USA_M42C01_en