What is Kinetic Dynamic Suspension System Toyota 4Runner?

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Are you wondering what is Kinetic Dynamic Suspension System Toyota 4Runner? The Kinetic Dynamic Suspension System (KDSS) is a cutting-edge technology developed by Toyota for their 4Runner model. This advanced suspension system enhances the vehicle’s off-road capabilities and provides a smooth and comfortable ride on various terrains. 

As one of the leading manufacturers in the automotive industry, Toyota has always been committed to incorporating innovative features that enhance performance, safety, and overall driving experience.

With the increased popularity of the 4Runner, many people are becoming curious about the advanced suspension system of this vehicle. Therefore, we will delve into the Kinetic Dynamic Suspension System, exploring its functionality, benefits, and how it sets the Toyota 4Runner apart from other SUVs in its class. 

What is Kinetic Dynamic Suspension System Toyota 4Runner?

What is Kinetic Dynamic Suspension System Toyota 4Runner

The Kinetic Dynamic Suspension System (KDSS) is an advanced technology developed by Toyota for their 4Runner SUV. This innovative system enhances the vehicle’s off-road capabilities by automatically adjusting the suspension to provide optimal stability and control in challenging terrain. 

By allowing for greater wheel articulation, KDSS enables each wheel to move independently, keeping all four wheels on the ground even when driving over uneven surfaces.

At its core, the Kinetic Dynamic Suspension System utilizes a set of hydraulic cylinders that are connected to each of the vehicle’s stabilizer bars. These hydraulic cylinders can be adjusted electronically based on driving conditions. 

When driving on rough or bumpy terrain, the system activates and allows for greater suspension movement, improving traction and reducing body roll. Conversely, when driving on smooth roads or at high speeds, KDSS stiffens the suspension to enhance stability and prevent excessive body lean during cornering.

How Does Kinetic Dynamic Suspension System Work?

To understand how kinetic dynamic suspension works, you should first learn about swaybars. Understanding how sway bars function lays the foundation for comprehending the capabilities of Toyota’s Kinetic Dynamic Suspension System (KDSS). 

KDSS Swaybars and Their Effect on Riding

Sway bars, also known as stabilizer bars or anti-roll bars, are an essential component of a vehicle’s suspension system. Their primary function is to control body roll during cornering and minimize the lateral sway or lean of the vehicle. Sway bars link the left and right wheels together horizontally, transferring forces between them and reducing excessive weight transfer. 

On the other hand, KDSS utilizes hydraulically controlled sway bars to provide enhanced wheel articulation in challenging terrains while simultaneously optimizing stability during normal driving conditions.

Unlike conventional sway bars that are typically rigidly connected to the vehicle’s chassis, KDSS incorporates hydraulic cylinders and reservoirs into its design. This enables independent control over each side of the vehicle’s suspension system. 

When encountering uneven terrain or obstacles, such as rocks or deep ruts, the hydraulic pressure can be adjusted to allow each wheel to move more freely and independently of one another.

By dynamically adjusting the stiffness of the sway bars based on real-time conditions, KDSS effectively minimizes body roll without compromising ride comfort on paved roads. 

This innovative system automatically disengages when not needed for off-roading, automatically re-engaging during regular use to promote smoother driving dynamics.

Advantages and Disadvantages of Toyota 4Runner Kinetic Dynamic Suspension System 

We all know that nothing is perfect in this world. So, to enrich your knowledge and sense of judgment, look at both advantages and disadvantages of the Toyota 4Runner KDSS suspension system. 


Firstly, KDSS allows for greater wheel articulation by automatically adjusting the suspension stiffness based on driving conditions. This means that when navigating uneven terrain or tackling obstacles, each wheel can move independently to maintain traction and stability, improving off-road prowess.

In addition to enhanced off-road performance, KDSS also offers improved on-road handling. The system actively reduces body roll during cornering by disconnecting the front and rear stabilizer bars when unnecessary. Doing so allows each wheel to move more freely, providing a smoother ride and better control.

Another advantage of the KDSS is its versatility. With a switch flip, drivers can easily toggle between modes – one optimized for on-road driving and another designed specifically for off-road adventures.


Like any other technology, the KDSS suspension system has its fair share of disadvantages. One major drawback is the increased cost associated with this system. Compared to regular suspension systems, the Kinetic Dynamic Suspension System is more complex. 

In addition, it requires additional components, such as hydraulic cylinders and electronic sensors, which can significantly drive up the vehicle’s overall price.

How reliable is Toyota KDSS?

Based on our current understanding, the KDSS suspension system is quite reliable since it requires minimal maintenance. However, it is recommended to visually inspect the suspension every 10,000 miles to ensure its optimal performance, although breakdowns appear uncommon. 

It is important to note that there are only a limited number of individuals who possess the expertise to properly inspect this specialized suspension system. Considering the potential costs associated with repairs, conducting regular inspections can provide added reassurance. 

Specifically, checking for any signs of leakage in the seals and bolts would contribute to maintaining the integrity of the suspension system and ensuring its longevity. This precautionary measure will help mitigate possible issues and foster a greater sense of confidence in your vehicle’s performance.

Related: Toyota KDSS Suspension Problems

Is the Kinetic Dynamic Suspension System Worth It?

If you desire enhanced performance without altering your vehicle’s suspension system, the KDSS is an excellent choice. Perhaps you are considering installing a lift kit or other aftermarket suspension components? 

Let’s examine the approximate costs for comparison. Opting for the KDSS entails a single upfront expense of around $1750. While repairing these systems can be expensive in case of any issues, they appear durable.

The price of an aftermarket lift kit can vary greatly, ranging from $500 for basic enhancements like taller springs and shocks to several thousand dollars for more extensive modifications. It is important to note that these off-road focused alterations may not enhance your vehicle’s on-road performance and could potentially have a negative impact.

Final Words

the Kinetic Dynamic Suspension System in the Toyota 4Runner is a revolutionary technology that enhances both on-road and off-road performance.  

Whether tackling rugged trails or navigating city streets, the Kinetic Dynamic Suspension System ensures optimal performance and comfort. Experience the difference for yourself by test-driving a Toyota 4Runner equipped with this advanced suspension system.