Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual: Automatic High Beam

The Automatic High Beam uses a camera sensor located behind the upper portion of the windshield to assess the brightness of the lights of vehicles ahead, streetlights, etc., and automatically turns the high beams on or off as necessary.

WARNING

■ Limitations of the Automatic High Beam Do not overly rely on the Automatic High Beam. Always drive safely, taking care to observe your surroundings and turning the high beams on or off manually if necessary.

■ To prevent incorrect operation of the Automatic High Beam system Do not overload the vehicle.

Activating the Automatic High Beam

1. Push the lever away from you with the headlight switch in the or position.

2. Press the Automatic High Beam switch.

The Automatic High Beam indicator will come on when the system is operating.

Turning the high beams on/off manually

■ Switching to the low beams Pull the lever to its original position.

The Automatic High Beam indicator will turn off.

Push the lever away from you to activate the Automatic High Beam system again.

■ Switching to the high beams Press the Automatic High Beam switch.

The Automatic High Beam indicator will turn off and the high beam indicator will turn on.

Press the switch to activate the Automatic High Beam system again.

■ Conditions to turn the high beams on/off automatically

• When all of the following conditions are met, the high beams will be turned on automatically (after approximately 1 second):
  • The vehicle speed is approximately 21 mph (34 km/h) or more.
  • The area ahead of the vehicle is dark.
  • There are no vehicles ahead with headlights or tail lights turned on.
  • There are few streetlights on the road ahead.
• If any of the following conditions is met, the high beams will turn off automatically:
  • The vehicle speed is below approximately 17 mph (27 km/h).
  • The area ahead of the vehicle is not dark.
  • Vehicles ahead have their headlights or tail lights turned on.
  • There are many streetlights on the road ahead.

■ Camera sensor detection information

• The high beams may not be automatically turned off in the following situations:
  • When a vehicle suddenly appears from around a curve
  • When the vehicle is cut in front of by another vehicle
  • When vehicles ahead cannot be detected due to repeated curves, road dividers or roadside trees
  • When vehicles ahead appear in a faraway lane on a wide road
  • When the lights of vehicles ahead are not on
• The high beams may be turned off if a vehicle ahead that is using fog lights without its headlights turned on is detected.
• House lights, street lights, traffic signals, and illuminated billboards or signs and other reflective objects may cause the high beams to change to the low beams, or the low beams to remain on.
• The following factors may affect the amount of time taken for the high beams to turn on or off:
  • The brightness of the headlights, fog lights, and tail lights of vehicles ahead
  • The movement and direction of vehicles ahead
  • When a vehicle ahead only has operational lights on one side
  • When a vehicle ahead is a two-wheeled vehicle
  • The condition of the road (gradient, curve, condition of the road surface, etc.)
  • The number of passengers and amount of luggage in the vehicle
• The high beams may turn on or off unexpectedly.
• Bicycles or similar vehicles may not be detected.
• In the following situations the system may not be able to correctly detect the surrounding brightness level. 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 switch between the high and low beams.
  • When driving in inclement weather (heavy rain, snow, fog, sandstorms, etc.)
  • When the windshield is obscured by fog, mist, ice, dirt, etc.
  • When the windshield is cracked or damaged
  • When the camera sensor is deformed or dirty
  • When the temperature of the camera sensor is extremely high
  • When the surrounding brightness level is equal to that of headlights, tail lights or fog lights
  • When headlights or tail lights of vehicles ahead are turned off, dirty, changing color, or not aimed properly
  • When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
  • 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 roads, etc.)
  • When frequently and repeatedly taking curves or driving on a winding road
  • When there is a highly reflective object ahead of the vehicle, such as a sign or mirror
  • When the back of a preceding vehicle is highly reflective, such as a container on a truck
  • When the vehicle's headlights are damaged or dirty, or are not aimed properly
  • When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
  • When the headlights are changed between the high beams and low beams repeatedly in an abnormal manner
  • When the driver believes that the high beams may be flashing or dazzling pedestrians or other drivers

■ Temporarily lowering sensor sensitivity The sensitivity of the sensor can be temporarily lowered.

1. Turn the power switch off while the following conditions are met.

• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.

2. Turn the power switch to ON mode.

3. Within 30 seconds after 2, repeat pulling the headlight switch lever to the original position then pushing it to the high beam position quickly 10 times, then leave the lever in high beam position.

4. If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3 times.

Automatic High Beam (headlights) may turn on even when the vehicle is stopped.

Fog light switch

The fog lights secure excellent visibility in difficult driving conditions, such as in rain and fog.

Operating instructions

1.   (U.S.A.) or (Canada) Turns the fog lights off

2. Turns the fog lights on

■ Fog lights can be used when The headlights are on in low beam.