- About Pre-Collision Assist System
A driving aid such as the Pre-Collision Assist is a system designed to prevent road accidents. The system can get faulty due to specific reasons.
It sends warning signals like “Pre-Collision Assist Not Available Sensor Blocked” when this happens. Now, what does this signal mean?
Whenever you get the “Pre-Collision Assist Not Available Sensor Blocked” signal, it simply means the sensor is blocked. That said, other reasons can cause this problem.
This guide will describe this signal, its meaning, the causes, and possible solutions.
About Pre-Collision Assist System
Special driving aids are installed in vehicles as driver assistance systems to improve and ensure safety while driving.
Driving aids are Advanced Driver-Assistance Systems (ADAS) that guide drivers in different situations to ensure comfortability and safety.
A driving aid is a system that uses radar and ultrasonic sensors to monitor the surroundings of vehicles in motion.
The technology is used to make vehicles travel safer through the automation of vehicle operations. An example of a crucial driving aid is the Pre-Collision Assist system.
The Pre-Collision Assist system will detect pedestrians and vehicles along the path of your vehicle.
Then, it will send you warning signals of their presence to prevent collision or accident.
So, you may want to ask – how does this Pre-Collision Assist work? Does it just send warnings?
The Pre-Collision Assist system doesn’t stop at sending warning signals.
If you don’t respond to the warning signals, the system will automatically apply your vehicle’s brakes. Voila!!!
This system is designed to prevent accidents or reduce the severity of accidents.
How Pre-Collision Assist System Works
Now that you know what the Pre-Collision Assist system does, we will look at how it works.
Here’s how the Pre-Collision Assist system works when driving a vehicle daily:
- The pre-Collision Assist system uses a front camera and an invisible laser.
- It then measures the distance of your vehicle from an obstacle in your path.
- The system notes your speed and predicts if a collision with the obstacle is possible.
- If it predicts a possible collision, the system will notify you of the danger with an alert.
- As the driver, you will receive this alert, and you’re expected to apply the brake manually.
- If you don’t slow down or stop the vehicle, the system will automatically apply the brakes.
So, the Pre-Collision Assist works as a driving aid, but you have to be attentive and cautious.
Pre-Collision Assist Faulty Signal
This system is designed to be an aid that will help drivers and protect pedestrians on the road. So, it is vital to keep the system in check and ensure it is functioning.
However, the system can develop faults of its own when you least expect it.
A common fault found with this system is “Pre-Collision Assist Not Available Sensor Blocked.”
When you see this error message on your screen, you need to find a way to address it.
Here’s a breakdown of vital details about Pre-Collision Assist Not Available Sensor Blocked:
- The Meaning of Pre-Collision Assist Not Available Sensor Blocked
- The Causes of Pre-Collision Assist Not Available Sensor Blocked
- The Solutions to Pre-Collison Assist Not Available Sensor Blocked
Pre-Collision Assist Not Available Sensor Blocked – Meaning
When you see an error message displayed on the speedometer screen, it is vital to know the meaning.
You will position yourself well to find the causes and possible solutions.
The “Pre-Collision Assist Not Available Sensor Blocked” is a sensor warning notification that indicates that the sensors are blocked or faulty.
With the sensor blocked, the Pre-Collision Assist system will not work. Hence, an error message is sent to notify the driver.
It is essential to address this error message when it starts displaying on your screen.
Failure to do so can lead to losing control of your vehicle or severe injury from vehicle collisions.
The Pre-Collision Assist system in your vehicle works by using a front-facing camera and laser to detect surrounding objects in your path and alerts you to apply the brake when it’s necessary.
A blocked sensor will prevent you from receiving this alert. So, the system is programmed to send you a warning that the sensor is blocked.
That’s why you receive this error message.
Pre-Collision Assist Not Available Sensor Blocked – Causes
If you ever see the Pre-Collision Assist Not Available Sensor Blocked signal, the first thing to do is identify the cause of the problem.
Different factors can cause this problem.
An error message may display on your speedometer screen at any time.
If you ever get the error message that says “Pre-Collision Assist Not Available Sensor Blocked,” it means there’s an issue with the sensor of the Pre-Collision Assist system of your vehicle.
Aside from a blocked sensor, other factors can cause this problem.
So, here are some of the leading causes of Pre-Collision Assist Not Available Sensor Blocked:
- This error message may display due to a dirty sensor.
- Low visibility during cold and severe weather conditions.
- It may be a result of water intrusion on the sensor attached.
- It may happen when snow or ice covers the front camera and radar.
- The severe impact of spray, fog, and rain can prevent the system from working.
Pre-Collision Assist Not Available Sensor Blocked – Solutions
We have carefully analyzed the causes of Pre-Collision Assist Not Available Sensor Blocked.
Now that you know the causes of Pre-Collision Assist Not Available Sensor Blocked, we will dive deep into possible solutions to the problem.
Here are effective measures to follow:
- Check the sensors and clean them thoroughly.
- You can disconnect the battery and reconnect it.
- Clean the grill surface in front of the radar sensor.
- Take the time to clean the windshield with a cleaning agent.
- Ensure you keep the front camera and radar free of snow and ice.
- Remove any object that may be obstructing the view of the system.
- Have your vehicle checked and serviced by authorized dealers.
Whenever you take your vehicle in for service, the service department may hold the vehicle for a few days.
It is to give them enough time to diagnose problems affecting the vehicle.
A good thing about this sensor warning is that the notifications are well documented in the app.
So, it makes it easy for you to show the number of occurrences when servicing your vehicle.
Pre-Collision Assist System Warnings
Here are essential warnings about the Pre-Collision Assist system:
- The system is not designed to detect animals.
- The system does not operate during hard acceleration or steering.
- The system will not detect vehicles traveling in different directions.
- The system will not relieve you of your responsibility to drive with caution.
- The system is affected by direct sunlight and severe weather conditions.
Do not rely on this system to guide you in all situations.
As a driver, you are expected to adhere to road safety rules while maintaining the right speed and distance from objects along your path.
The Pre-Collision Assist system provides three levels of functionality; alert, brake support, and active braking.
All these three functionalities combine to help prevent road accidents.
However, these functionalities will not be activated if the driving aid system is faulty.
For instance, the alert functionality will not work if the Pre-Collision Assist sensor is faulty.
So, how do you know when the Pre-Collision Assist sensor is faulty?
You can tell when you receive the Pre-Collision Assist Not Available Sensor Blocked signal on your screen.
We have described all you need to know about this error message and how you can fix it.
Patrick started his love affair with cars in his childhood. Over the years, he claims a sturdy hold on his driving skills, along with a thorough understanding of cars. We can expect some interesting, holistic, and pleasurable blogs with his flair for writing and his love for cars.
Being a car enthusiast, Patrick has experience comprising of two decades in which he has ridden some of the meanest and strongest machines in the automotive industry. His previous avatars include an automotive professional, photographer, and journalist, and you will certainly experience the roundness of experience in his piece on this site.
In his second decade of reviewing cars and analyzing tools, Patrick is all set to give you convincing, reliable, and the latest information regarding what’s happening in the automotive industry. Currently, he owns a BMW Z3 but cannot get his eyes off Aston Martin DB5. He is a car enthusiast; he loves cooking and listening to music, especially jazz. Here are some of the pieces written by our ace author.