Lexus BSM Light: Meaning, Problems & Solutions

ALEX HARPER

Is it important for you to know what the Lexus BSM light means, how it can help you, how it can be used, and the common problems that can occur?

In modern Lexus vehicles, the blind spot monitor light improves driver safety and awareness by providing an advanced safety feature. After detecting a vehicle in a driver’s blind spot, the BSM system illuminates the dashboard or rear window mirrors to reduce the risk of collision.

Lexus BSM Light

In this article, we are going to take a closer look at blind spot monitoring lights to explore all the things you need to know about them, including the common problems that they are known for, how to fix them, the purpose of their usage, and how to switch them on and off. In order to better understand BSM, let us take a closer look at it.

Lexus BSM Light Meaning

In order to prevent accidents and improve driver safety, Lexus developed a blind spot monitor called BSM. Drivers cannot see vehicles in blind spots with side mirrors because they are in blind spots. Behind the right and left corners of the rear bumper, two radar sensors are used. 

A blinking light appears on the side mirrors as soon as these radar sensors detect the vehicle. The flashing light indicates a safe lane change when you encounter it, preventing collisions and serious accidents. 

The rear cross-traffic alert (RCTA) is another safety feature that can be used in place of a BSM to aid drivers when driving on the road, exiting parking spots, negotiating corners, and changing lanes. In some cases, fast driving involves ignoring safety and overtaking other vehicles without looking left or right. As a result, you will be able to drive fast without crashing into other vehicles.

Advanced Features Related To BSM

Lexus offers a number of advanced safety and comfort features that make the vehicle a pleasure to drive.

FeatureFunctionActivationIndicators
Rear Cross Traffic Alert (RCTA)Assists drivers when reversing by alerting them of approaching vehiclesWhen reverse gear is engaged, it automatically activatesVisual and/or audible alerts
Lane Change Assist (LCA)When lane changes are happening, it alerts you if a car is coming up from behind quicklyEnhances safety by working with BSMVisual and/or audible alerts

How to Enable & Disable Lexus BSM?

1. Using the Multi-Information Display

The Multi-Information Display can be used to enable or disable BSM:

  1. On the steering wheel, press the “MENU” button.
  2. Navigate to “SETTINGS” by using the arrow buttons.
  3. Navigate to “VEHICLE SETTINGS” by using the arrow buttons.
  4. To access “BLIND SPOT MONITOR,” use the arrow buttons.
  5. You can switch between “ON” and “OFF” by pressing the arrow buttons.
  6. Your steering wheel has an “OK” button that you can press to exit the menu.

2. The BSM Button

In a Lexus vehicle, the BSM button is another way to enable and disable the system. Most vehicles have this button near or inside the driver’s door, just to the left of the steering wheel, typically near the top of the center console.

Press and hold the BSM button for a few seconds to enable or disable the BSM system. The BSM light will appear on your dashboard when the system is turned on or off. An illuminated light indicates an active BSM system, and an unilluminated light indicates an inactive one.

There are some Lexus models that do not have BSM buttons. Lexus IS, GX, NX, RC, ES, and LS are among the models that have been produced.

When to Use the Lexus BSM Light?

When to Use the Lexus BSM Light?

1. Changing Lanes Safely

Changing lanes on highways or busy roads can be particularly difficult without the BSM system. Through the BSM light on your dashboard, the system detects vehicles in your blind spots and alerts you. Avoiding collisions and ensuring smooth lane changes can be made easier this way.

2. Parking and Maneuvering

Parking and maneuvering your vehicle in tight spaces can also be made easier by the BSM system. Your BSM light will warn you if there’s anything behind or beside your car, such as a vehicle or obstacle. You’ll be able to park much easier and avoid accidents this way.

3. During low-visibility conditions or at night

When it’s raining or foggy, or when visibility is low, the BSM system can be especially useful. You can’t see cars in your blind spots in these situations, which increases your accident risk. Having a BSM system can provide you with peace of mind by alerting you to nearby vehicles.

Troubleshooting the BSM Light

There are a few common issues that can cause the BSM light on your Lexus to illuminate unexpectedly even though the BSM system is designed to function reliably:

Troubleshooting the BSM Light
  1. Dirty sensors: Your BSM detects other vehicles in your blind spots by using sensors located on the rear bumper. This sensor may not function properly if it becomes dirty or obstructed, resulting in a BSM light.
  2. Faulty wiring: The BSM system has connections and wiring just like any electrical system. It may be possible for the BSM light to turn on unexpectedly if the wiring or connections are incorrect.
  3. Low battery voltage: For BSM to operate properly, batteries must be at a certain voltage. It is possible for BSM lights to come on if the battery voltage is low.

Here are some troubleshooting steps to try if you are experiencing BSM light issues:

  1. Check the sensors: Make sure your rear bumper sensors are clean and free of obstructions. Soft cloths and mild detergent should be used to clean them if they are dirty.
  2. Check the wiring: Make sure the BSM system’s wiring and connections aren’t damaged or corroded. Having any issues fixed by a qualified technician is the best way to go.
  3. Check the battery voltage: Make sure the battery voltage is correct using a multimeter. Test your battery and replace it if necessary if the voltage is low.

A Lexus service technician may be able to help if these troubleshooting steps fail to solve the issue. To ensure that the BSM system operates reliably and effectively, they can diagnose and repair any issues with it.

Frequently Asked Questions

What does the BSM light on my Lexus mean?

The BSM (Blind Spot Monitor) light indicates that the system is activated and monitoring vehicles in your blind spots. If the light remains on without turning off, it may signal sensor issues or false alerts due to environmental factors.

How do I know if my Lexus BSM system is turned on?

You can verify if the BSM system is active by checking for a flashing BSM symbol on the dashboard. Additionally, a green light on the BSM button located on the left side of the steering wheel confirms that the system is functioning.

Why is my BSM light flashing or not turning off?

The BSM light may stay on due to several reasons, including sensor obstructions, electrical faults, or software glitches. Cleaning the sensors and updating the software can help resolve these issues. If problems persist, consulting a professional technician is recommended.

Can I fix the Lexus BSM light problems myself?

Yes, many BSM light issues can be resolved with basic mechanical knowledge. Regularly cleaning the sensors and checking for electrical faults can often fix the problem. However, more complex issues may require professional assistance.

What should I do if the BSM light comes on after an accident?

If the BSM light activates after an accident, it may indicate misalignment or damage to the sensors. It is advisable to inform your repair shop about the accident, as they can check for any undetected issues related to the BSM system during repairs

Conclusion

As you drive on a road where various vehicles are crossing each other, the Lexus BSM light plays a vital role in your safety. Blind spot vehicles whose side mirrors cannot see them are identified by this feature. BSM light can be utilized to its full potential after you understand what it is, how it works, how to activate or deactivate it, and why it is so important.

You can significantly enhance the safety of your driving experience by regularly maintaining all the components of your blind spot monitor and checking for the latest software updates.

About Alex Harper

Alex Harper is a seasoned automotive expert with over a decade of experience in the industry. Passionate about cars and committed to sharing his knowledge, Alex combines technical expertise with a love for writing to create comprehensive and accessible car guides.

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