Blind Spot Monitor: Is It A Feature Of Nx F Sport?

The Lexus NX is a luxury vehicle that offers a range of advanced features, including the Blind Spot Monitor (BSM) system. This system is designed to enhance the driver's awareness and assist in making lane changes and backing up safer. The BSM uses sensors installed behind the rear bumper to detect vehicles in the blind spot and alerts the driver through visual and audible warnings. While the BSM is available on most new Lexus models, including the NX, some users have reported issues with the system, such as false alerts and random status light behaviour. Overall, the Lexus NX's BSM system aims to improve safety and driver confidence when navigating through traffic and manoeuvring in tight spaces.

How to turn on the blind spot monitor in a Lexus NX

The Lexus NX is equipped with a Blind Spot Monitor (BSM) system that uses sensors installed behind the rear bumper to assist the driver in checking areas that are not easily visible. The BSM system has two functions: the Blind Spot Monitor function and the Rear Cross Traffic Alert function.

To turn on the Blind Spot Monitor in your Lexus NX, simply press the BSM button inside the driver's door. You will know that the feature is on when you see a green light.

The Blind Spot Monitor function assists the driver in making decisions when changing lanes. When a vehicle is detected in the blind spot of the outside rearview mirrors or approaching rapidly from behind, the outside rearview mirror indicator on the detected side will illuminate. If the driver operates the turn signal lever towards the detected side, the outside rearview mirror indicator will flash as a warning.

The Rear Cross Traffic Alert function assists the driver when backing up. When a vehicle is approaching from the right or left rear of the vehicle, both outside rearview mirror indicators will flash, and a buzzer will sound from behind the right-hand rear seat.

It is important to note that the Blind Spot Monitor system is a supplementary function and should not be solely relied upon. The driver is responsible for safe driving and should always visually confirm the surroundings.

The blind spot monitor system malfunction

The Lexus NX F SPORT features a Blind Spot Monitor (BSM) system that uses sensors installed behind the rear bumper to assist the driver in checking areas that are not easily visible. While the BSM system can be helpful, it may occasionally malfunction. Here are some common issues and potential solutions to consider:

System Malfunction Message

If the multi-information display shows "Blind Spot Monitor System Malfunction Visit Your Dealer," it indicates a sensor malfunction or voltage abnormality. In such cases, it is recommended to have the vehicle inspected by a Lexus dealer.

Weather Conditions

The BSM system may not function optimally in extremely hot or cold weather conditions. Additionally, the outside temperature being extremely high or low can also trigger a malfunction message.

Sensor Obstruction

The BSM sensors should always be kept clean and free from any obstructions. Water, snow, mud, or other debris in the vicinity of the sensor area can affect its normal operation. Ensure that the sensors are clear and unobstructed for proper functioning.

Sensor Misalignment

Strong impact to the sensor or its surrounding area can cause misalignment, leading to incorrect detection of vehicles in the blind spot. If the sensor has been knocked out of position, even slightly, it is crucial to have the area inspected by a Lexus dealer.

Vehicle Speed

The BSM system is designed to operate when the vehicle's speed is greater than approximately 10 mph (16 km/h). If the vehicle is travelling at a very low speed, the system may not detect surrounding vehicles.

Vehicle Distance

The BSM system may not function correctly when there is a short distance between your vehicle and the vehicle ahead. It is important to maintain a safe distance to allow the system to detect vehicles effectively.

Vehicle Height Difference

The BSM system may have limitations when there is a significant difference in height between your vehicle and the vehicle in the adjacent lane. This height difference can affect the system's ability to accurately detect surrounding vehicles.

Trailer Towing

Towing a trailer can impact the performance of the BSM system. The system may not function correctly when a trailer is attached to the vehicle.

Bicycle Carrier Installation

Installing a bicycle carrier or other accessories at the rear of the vehicle can interfere with the BSM sensors and affect their performance.

Sensor Voltage

Abnormal sensor voltage can lead to a system malfunction. This issue may trigger a warning message on the multi-information display, indicating the need for inspection by a Lexus dealer.

The blind spot monitor system's limitations

The blind spot monitor (BSM) system has several limitations that users should be aware of. Firstly, it is important to note that BSM systems are not designed to detect smaller vehicles like motorcycles, bicycles, or pedestrians. Additionally, stationary objects such as guardrails, walls, signs, and parked vehicles are also not within the detection range of these systems.

Another limitation of BSM is that it may not function correctly under certain conditions. For example, if the sensors are covered with mud, snow, or ice, or if the vehicle is driving on a wet road surface during heavy rain, snow, or fog, the system's effectiveness may be compromised. Similarly, the BSM may not work optimally when multiple vehicles are approaching with only a small gap between them, or when there is a significant difference in speed between the user's vehicle and the vehicle in the adjacent lane.

Furthermore, BSM systems are typically designed to work at specific speeds, and they may not be effective when the user's vehicle is stationary or moving at a very low speed. Additionally, not all BSM systems have parking assist and collision warning functions, and some may only function properly when the sensors are properly aligned and free of any impact damage.

It is also important to note that BSM systems are not a substitute for safe driving practices and the driver's own visual confirmation of safety. While BSM can provide valuable assistance, the driver is solely responsible for safe driving and should always be cautious and observe their surroundings.

The Rear Cross Traffic Alert function

When a vehicle is approaching from the rear, both outside rearview mirror indicators will flash, and a buzzer will sound from behind the right-hand rear seat. Additionally, the Rear Cross Traffic Alert icon for the detected side will be displayed on the navigation/multimedia system screen. This function is designed to give the driver a more consistent reaction time, with the buzzer alerting for faster-approaching vehicles from farther away.

How to adjust your mirrors when backing up

The Lexus NX F SPORT package features a Blind Spot Monitor (BSM) that uses sensors installed behind the rear bumper to assist the driver in checking areas that are not easily visible. The BSM has two functions: the Blind Spot Monitor function and the Rear Cross Traffic Alert function.

Now, here's a detailed guide on how to adjust your mirrors when backing up:

Get Comfortable:

First, sit in the driver's seat and ensure you're in a comfortable driving position. Adjust your seat so you can easily reach the steering wheel, gas pedal, brakes, and gear shifter.

Adjust Your Rear-View Mirror:

Keep your head stable and manually move the rear-view mirror until you have a clear, centered, and level view directly out of the middle of your rear windshield, without needing to move your head.

Locate Your Side Mirror Adjustment Controls:

Many newer vehicles have electronic controls with buttons to adjust the side mirrors. Older vehicles may require manual adjustments using levers or by moving the mirror itself.

Adjust the Driver's Side Mirror:

Lean towards your left and rest your head on the driver's side window. Adjust the mirror side-to-side so you can barely see a sliver of your vehicle's side. Then, adjust the mirror vertically to ensure a clear view of the road behind you, including the curb.

Adjust the Passenger Side Mirror:

Lean to the right toward the center console. Repeat the same process as the driver's side mirror. If the controls are on the passenger side, you may need assistance or move back and forth between the seats to adjust it properly.

Double-Check Your Adjustments:

Sit back in the driver's seat and look into each mirror, starting with the driver's side. Ensure you have clear visibility in segments as you glance along. Remember, even with properly adjusted mirrors, always look over your shoulder to check for blind spots before changing lanes or backing up.

Frequently asked questions