Pre Collision System Malfunction: How To Reset [Not Working] (2024)

If you are like most drivers, you probably rely on your car’s pre-collision system to minimize the damage caused by the accident. You can keep your collision system activated as no one wants to be in a collision, and injury or death is always a concern. What if your car’s pre-collision system failed to detect an oncoming vehicle, and you crashed into it?

Pre-collision system malfunction happens when the sensors may be covered with snow, ice, or debris. Additionally, strong sunlight or lighting conditions can interfere with the sensors. If such a situation occurs, clear sensors from any debris or try driving in a different direction to see if that clears the problem.

This blog will highlight the importance of a pre-collision system for car safety and how to deal with its malfunction. Let’s get started!

What Is Pre-Collision Assist?

Pre collision assist is a driver assistance feature that uses sensors to monitor the surrounding area for potential hazards. If the system detects hindrance, it will provide visual and audible warnings to alert the driver. In some cases, the system may automatically apply the brakes to help avoid or mitigate a collision.

Pre collision assist is just one of many driver-assistance features that are becoming increasingly common in today’s vehicles. Other examples include lane departure assist and keep assist, adaptive cruise control, and automatic high beams.

While these systems are not perfect, they can help make the roads safer for everyone by reducing the incidence of accidents.

How Does the Pre-Collision System Work?

When the vehicle is in drive and approaching another car or object, the pre collision sensor uses radar to detect if a collision is imminent. If a collision is detected, the sensor will activate the pre collision system, which can help to reduce the severity of the collision or even avoid it altogether.

Most pre collision systems are automatic, and most accidents are unpredictable. The technology behind a pre collision system is highly sophisticated. pre collision systems are not perfect, but they can help make the roads safer for everyone by reducing the incidence of accidents.

If you are interested in learning more about pre collision systems or other driver assistance features, ask your dealership or automotive service provider. They will be able to tell you more about how these systems work and whether they are available on the vehicles you are considering.

What Causes Pre-Collision System Malfunction?

There are several potential causes of pre collision system malfunctions. One common cause is that the sensors or cameras that the system relies upon become dirty or obstructed. It prevents them from properly detecting obstacles.

Another possibility is that the system itself may become damaged or malfunctioning. If you suspect that your pre collision system is not working properly, it is crucial to have it checked by a qualified automotive technician as soon as possible.

Ignoring a problem with your pre-collision system could result in an accident that could have been avoided. So, do not take chances for your safety on the road.

Filthy Radar

One of the most common causes of pre-collision system malfunctions is dirty radar sensors. The radar sensor is located behind the vehicle’s front grille, and it can become obstructed by bugs, dirt, snow, or ice.

If the radar sensor becomes obstructed, it will not be able to detect obstacles on the road properly. If you live in an area where bugs are common, it is important to clean your radar sensor regularly to prevent this problem.

System Is Unprotected From Rodents

Another potential problem that can cause your pre-collision system to malfunction is damage from rodents. If rodents can chew on the wires or other components of the system, it can cause severe damage. This type of damage is often not covered by a warranty, so it is important to take steps to prevent it.

Tow Hitch Installed

If you have a tow hitch installed on your vehicle, it is important to ensure that it is installed correctly. If the tow hitch is not installed properly, it can obstruct the radar sensor and cause the pre collision system to malfunction.

When installing a tow hitch, be sure to use a qualified automotive technician. They will be able to install the tow hitch correctly and ensure that it does not obstruct the radar sensor.

Faulty Airbag Sensor

One potential cause of pre collision system malfunctions is a faulty air bag sensor. The airbag sensor is located in the front of the vehicle. It is used to detect when an accident has occurred. If it is faulty, it may not let your pre collision sensors work properly.

See Also:

Tinted Rear Windshield

Another problem that can cause your pre collision system to malfunction is a tinted rear windshield. If the rear windshield is too darkly tinted, it can prevent the radar sensor from properly detecting obstacles.

Check Out Toyota Pre-collision System Failure: Ideas of What Might Be the Problem (English & Español):

Fixing The Pre-Collision System

When a pre collision system malfunctions, it is important to take the necessary steps to fix the problem as soon as possible. Depending on the severity of the malfunction, different steps may need to be taken to get the system back up and running smoothly.

• If you have a minor malfunction with your pre collision system, you may be able to fix the problem by resetting the system. You can do this by disconnecting the battery for a short period and then reconnecting it. This will often clear any minor glitches that may have caused the system to malfunction.
• If you have a more serious malfunction with your pre collision system, you will likely need to take it to a qualified technician to have it repaired. This is because more serious malfunctions can often be caused by electrical issues that are best resolved by someone with the proper training and experience.

No matter what type of malfunction you are experiencing with your pre collision system, it is essential to take action to fix the problem as soon as possible.

How To Reset Pre-Collision System Malfunction?

If your pre collision system is malfunctioning, you can do a few things to reset it.

• First, check the fuse box and ensure that the fuse for the pre collision system is not blown. If it is, replace it with a new one.
• Next, disconnect the battery and then reconnect it. This will reset all the electronic systems in your car, including the pre collision system.
• Finally, take your car to a mechanic or dealer to have it checked out if the problem persists.

When To Reset My Pre-Collision System?

While driving, if you observe that:

• Toyota’s pre collision system is not working properly.
• The vehicle ahead has been driven out of range of the pre collision system’s sensors.
• There is a problem with the pre collision system light or laser sensor.
• The pre collision system has been turned off.

If any of these four conditions exist, it is necessary to reset the pre collision system. However, you can also check the following list to be sure of resetting your pre collision system.

Debris Build Up

One common reason you may need to reset your pre collision system is debris buildup. Over time, dirt and debris can accumulate on the sensor, causing it to become dirty. This can cause the pre collision system to fail.

If you think that dirt and debris might be causing the problem, you can try cleaning the sensor. To do this, you will need to disconnect the battery and then clean the sensor.

Marks or Errors On Screen

Another reason why you may need to reset your pre collision system is if there are marks or errors on the screen. These marks or errors can indicate that the system is not working properly.

FCW Off Error

If you see the FCW off error, it means that the forward-collision warning light system is turned off. This can be caused by various things, such as a dirty sensor or an obstruction in front of the sensor.

If you see this error, you should also check the area in front of the sensor for any obstructions. If there is an obstruction, you must remove it before the system works properly. If you have checked the sensor and there are no obstructions, you may need to reset the system.

Red Lights

Red lights and beeps indicate a system malfunction. To reset the system, do the following:

• Turn the ignition switch to the off position.
• Wait at least 5 seconds.
• Turn the ignition switch to the on position.

If the system still does not operate properly, take your vehicle to your car dealer.

What Are The Cars With Pre-Collision Systems?

As the name suggests, a car with pre collision system is equipped with a mechanism that can detect an impending collision and automatically take measures to avoid or mitigate it. This usually involves slowing down or stopping the vehicle and even deploying airbags.

Pre collision systems are often touted as life-saving features, and indeed, they effectively reduce the severity of accidents. However, like any other piece of complex technology, pre collision systems are not perfect, and they can sometimes fail.

Tips To Reduce The Risk Of Pre Collision System Malfunction

Fortunately, there are things that you can do to reduce the chances of your pre collision system malfunctioning.

• First and foremost, keep it well-maintained and updated with the latest software.
• Secondly, be aware of its limitations and do not rely on it too heavily – remember that it is just a tool and not a replacement for safe driving habits.

Toyota pre-collision System Review

Since its inception, Toyota’s pre collision System (PCS) has been one of the most touted safety features of its vehicles. The system is designed to detect an imminent collision and automatically engage the brakes to avoid or mitigate the damage from the crash.

The Toyota pre collision System is just one example of this commitment to safety. This system uses sensors to detect obstacles in the road ahead and can even apply the brakes automatically if necessary to help avoid a collision.

In addition to helping avoid accidents, the Toyota pre collision System can also help reduce the severity of a collision if one does occur. This is thanks to features like Brake Assist, which provides additional braking power when needed, and seatbelt pre-tensioners, which tighten the seatbelts automatically in the event of a crash.

Overall, the pros of the Toyota pre collision System seem to outweigh the cons. However, it’s important to be aware of the potential risks before deciding whether or not to install it in your vehicle.

FAQs

Final Consideration

When it comes to a pre collision system, many things can go wrong. The most common problem is with the sensors. There have been a few accidents where the pre collision system has failed, and people have been seriously injured or even killed. This is why it is important to ensure that your pre collision system is in good working order.