What is Pre Collision System and How does it Work?

Have you ever been driving and had a car in front of you suddenly slammed on its brakes? 

You may have thought to yourself, “I can’t believe I almost got into an accident!” Well, if that has happened to you before – it’s time for some good news. The technology behind your car is going to protect you from any unwanted accidents.

What does the pre-collision system do?

The pre-collision system, also known as FCS, forward collision warning or FCW, is a safety feature that many vehicles now have. It scans the road ahead of your car and calculates how far other cars are from your own position by measuring how distant they are.

If it detects another vehicle coming up fast from behind or in front of you, then it will activate the brakes automatically so as not to hit them.

A pre-collision system is a safety feature that can save you from expensive damages. It prevents cars with different speed limits or directions from crashing into one another by warning drivers about their approaching hazards, such as intersections without signal lights and railroad crossing zones

The Pre Collision System (PCS) is well-programmed to alert you before interacting too closely with other traffic on roads even where there are no physical barriers separating lanes–this includes highways outside urban areas as well!

How does it notify you if a collision is detected?

When a collision is feared, the system generates a ‘BREAK‘ warning message on the multi-information display and emits a buzzing sound to encourage collision avoidance.

Once the driver applies the brake, the pre-collision braking system activates and uses more-than-normal braking force if it determines that a collision is unavoidable in order to provide maximum collision avoidance and damage mitigation.

Following this, the system maintains pressure on the brakes for a period of up to two seconds.

Is it good to have a pre-collision system on your vehicle?

It is highly recommended to leave this feature on at all times. A pre-collision system is a great safety feature for drivers and passengers to have. It will help you avoid costly damages if an accident occurs, as well as reduce the number of injuries or fatalities that happen on today’s busy roads.

It can also help to prevent fatalities by preventing avoidable collisions in the first place!

The Pre Collision System is part of a larger safety system

Toyota offers a safety feature package that includes the pre-collision system called Toyota Safety Sense 2.0 (TSS 2.0). It also comprises lane departure warningdynamic cruise controlauto high beam, and other functions.

Toyota Safety Sense 2.0, like its predecessors, is meant to help drivers think more clearly and make better decisions while behind the wheel of their vehicle. It’s also meant to aid in vehicle operation over a significant range of speeds.


The safety feature has also improved in terms of detecting pedestrians at night as well as in low-light conditions, and it is now able to identify people on bicycles during the day. These features were not available in the previous version called Toyota Safety Sense: TSS P. TSS 2.0 adds several updates to its functionality, allowing drivers who travel along with them to benefit from the added safety.

The Pre Collision system is an important advancement in the safety of vehicles, allowing for improved protection against accidents that could otherwise occur. It’s a great example of how technological advancements are making our roads safer and more secure to drive on!

Better stopping ability for collision prevention

The TSS 2.0 system is an astounding advancement in-vehicle technology that will improve the safety of drivers everywhere! It enhances the speed reduction capabilities of the pre-collision system with vehicle-to-vehicle speed reduction improving from 40 km/h to 50 km/h.

In addition, pedestrian and bike speed reduction have been increased from 30 km/h to 40 km/h, which takes effect in both daylight and low-light situations.


Added feature 1: Daytime pedestrian detection 

Toyota Safety Sense 2.0 adds a new dimension to the pre-collision system with pedestrians, which can detect them in front while you’re driving and even stop!

The cleverly designed camera at the top of our windscreen captures an image from above before radar sensors on each side use millimetre waves to determine how close they are getting.

Together these two technologies make sure that any potential crash will be prevented by warning drivers well ahead if something is about happen so they have time enough either brake hard or swerve away immediately without causing injury to the pedestrians.

cyclist detection with pre collision system

Added feature 2: cyclist recognition

Toyota Safety Sense is also capable of identifying cyclists at night, something that was not possible in the previous version of Toyota’s safety system called Toyota Safety Sense P (TSS P).

It does this by using a camera on top of your windscreen which recognizes bikes and warns you before braking automatically if necessary, all thanks to the new update that was included with TSS 2.0!

cyclist detection with pre collision system

Added feature 3: low-light pedestrian detection

Nighttime pedestrians are also detected by the camera on top of your windscreen. The amount of time it takes to recognize them is automatically adjusted for each situation, and emits a sound to warn you before brake automatically applying them if necessary.

Toyota Safety Sense (TSS) can detect pedestrians at night as well as other vehicles in front of you. However, because the system uses only a forward-looking camera it cannot detect vehicles that are travelling in your blind spot or on either side of you.


How to adjust the pre-collision system?

The pre-collision system helps you avoid a crash by warning drivers about potential hazards. This feature, which is enabled by default, may be used to display the data from a variety of sources on your dashboard’s multi-information display. This function can be turned on and off; it only displays when needed or completely deactivated!


You may alter the pre-collision system’s sensitivity. This menu allows you to alter the sensitivity of the program. If you discover that this system is frequently activated by false alarms, this is the screen to fine-tune how alert you want the pre-collision system to be in order to protect both pedestrians and other motorists!


The next time you’re considering buying a new car, keep in mind that most cars on the market now come with some form of pre-collision system.

These systems are designed to give drivers an audible and visual warning when they get too close or are about to collide with another vehicle. This is important for your safety and we recommend you take it into account before making any purchase decisions.

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