Lexus LS460 Owner's Manual page 250

240
4-3. Operating the lights and wipers

In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose oncoming or pre-
ceding vehicles to the high beam or may continue using the low beam.
Therefore, in these situations you should consider turning the high beams
on or off manually rather than relying on the Adaptive High-beam System.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or have are not aimed properly.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a
truck.
• The vehicle's headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.

Turning the high beam on during Adaptive High-beam System operation
(except vehicles with both LED headlights and near-infrared ray transmitters)
When the vehicle is traveling at a high speed, the system will turn on the
inner high beam together with the outer high beam.

Customization
The variable shade beam can be turned off. (Customizable features P. 911)
CAUTION

Limitations of the Adaptive High-beam System
Do not rely on the Adaptive High-beam System. Always drive safely, tak-
ing care to observe your surroundings and turn the high beam on or off
manually if necessary.
LS460_EE (OM50D49E)