What Is Toyota Kdss Suspension

Kinetic Dynamic Suspension System is the abbreviation. Thoroughbred off-road vehicles like the 4Runner TRD Off-Road are equipped with this suspension setup. The KDSS Suspension, a system with both mechanical and electrical components, provides a driver with a lot of versatility.

What effects does Kdss suspension have?

Unbalanced forces are applied to the front and rear wheels when the car is driven over uneven terrain. These uneven forces across and between the axles cause the hydraulic cylinder’s pistons to move in various directions. This movement allows for significant suspension articulation and counteracts the anti-roll bar’s normal resistance. The accumulator valve immediately opens and shuts to change the flow of fluid in the hydraulic lines once these uneven stresses are noticed. Through the absorption of surface undulations, this dampens the vibrations. When the front and rear anti-roll bars are deactivated, all four of the vehicle’s wheels stay in contact with the ground for lengthy periods of time.

In the end, despite the bumpy terrain, the driver and passengers had a remarkably nice journey. You can’t go wrong with the Land Cruiser or the Invincible if you’re seeking for an exceptional off-road vehicle with superior performance regardless of the terrain’s difficulties.

What model Toyota features KDSS?

To date, the following models have used the Kinetic Dynamic Suspension System:

  • Toyota 4Runner Trail Edition, 20102016.
  • Toyota 4Runner TRD Off-Road, 2017present.
  • Toyota Land Cruiser, 2008.
  • Lexus GX, 2004present.
  • Toyota Prado, 2010present.

Can you disable KDSS?

The KDSS On/Off Switch for the 5th Generation 4Runner, GX460, and GX470 will now be discussed.

The main advantage of this mod is the ability to quickly turn on or off KDSS at any pace. It’s a switch that, as its name suggests, lets you turn the valves in your KDSS system on and off. KDSS is disabled when the switch is switched on. The system valves remain open at all times when KDSS is turned off. They won’t close faster than 12 mph, in other words.

Without the switch, a typical KDSS application would have the system’s valves open for speeds under 12 mph and closed for those over 12. Under 12 mph, the KDSS valves are open, allowing pistons and oil to freely circulate through the network of associated hydraulic lines. Over 12 mph, the valves close, applying pressure to the lines and making your ride firmer and more controlled. As a result, the valves remain open at all times when the switch is turned on (KDSS off).

Although KDSS is excellent for on-road use, When driving off-road at speeds greater than 12 mph, especially if you are not inflated down, the stiff sway bars provide some rigidity to your ride quality. The path is stiff, slightly rocky, and may be fairly unpleasant on the body when KDSS is engaged over 12 mph. But while off-roading at speeds exceeding 12 mph, the ride is significantly more forgiving and enjoyable with KDSS disabled. When KDSS is disabled, hitting whips, dips, and ruts is a lot more delightful experience.

How do I turn off KDSS?

1. Disable the KDSS: The KDSS lines connect to a hydraulic valve block that is located inside the left frame rail (driver side). There are two set screws on the bottom that are typically closed. Lengthen the two set screws by two turns each using a 4.5mm allen wrench.

With KDSS, can a car be lifted?

Although 4Runners with KDSS can be lifted, there are two problems that are frequently encountered: KDSS lean and poor ride quality.

We advise raising KDSS-equipped 4Runners a maximum of 2.5 in front and 1 in back due to the limits of the KDSS system. We haven’t experienced any leaning issues with this setup, and the ride is excellent.

What causes KDSS lean?

The most frequent problem that develops when you elevate your 4Runner too high is KDSS lean. The 4Runner will lean to the driver’s side since the electronics and hydraulics don’t appreciate too much lift. We have discovered no other option except to simply not lift them too high.

What are the travel limits in the rear?

The passenger side of KDSS 4runners has the most restriction for rear suspension travel. The fixed attachment point and stiff sway bar may bind up under certain conditions. Other times, the axle will be struck by the panhard bar. We haven’t come across a rear panhard bar that provides a significant amount of extra rear travel.

Rear shocks for KDSS 4Runners come in both stock and extended travel options. The rear of the vehicle can be articulated further on the driver’s side thanks to long travel shocks, but the passenger-side panhard can touch the axle due to droop. From the middle of the lower shock bolt to the top shock mount, the longest shock that can fit without making contact is 25. Many 4Runners with KDSS are equipped with shocks measuring 26 or more without any problems; they just don’t use the entire shock travel.

KDSS Drop Bracket

A KDSS drop bracket is available from Black Gate Customs to prevent the track bar from coming into contact with the sway bar when the suspension is fully drooped. This drop bracket can aid in increasing lift height, but it does push the sway bar further out and could be damaged by rocks when used off-road. You may read more about these brackets here.

Can you disconnect the KDSS system?

Disconnecting the system is not advised because it can result in check engine lights or void the warranty. The dealer should do routine maintenance on the system, which is both electronic and hydraulic.


Although the KDSS system has some limitations on lift height and rear suspension travel, it can improve on-road handling. Consider purchasing a 4Runner without KDSS if you want to lift it more than 2.5 inches in front and 1 inch in the back.

Can KDSS be used off-road?

Whether you travel off-road or not, you need KDSS. The system basically consists of two stabilizer bars that are larger and more effective at reducing body roll (and upset tummies) on twisting roads. But off-road, when wheel articulation is paramount, such high roll stiffness is typically bad.

Have all TRD off-road vehicles KDSS?

At $40,395 MSRP, the TRD Off-Road Premium is only somewhat more expensive than the TRD Off-Road trim and includes all of its features. The TRD Off-Road Premium includes SofTex seats for further comfort in addition to the CRAWL control, multi-terrain choose, and optional KDSS of the TRD Off-Road.

The TRD off-suspension road’s type, what is it?

The Toyota Tacoma, a tough vehicle with four wheels that essentially rules every terrain, will be available in 2021. The TRD Off-Road model, which is designed for off-road use, has a variety of features like an electronically locked rear differential and a specially tuned suspension with Bilstein shocks. In terms of features designed specifically for off-road use, the Tacoma TRD Off-Road has Multi-Terrain Select (MTS), Crawl Control (CRAWL), and Hill Start Assist Control (HAC). Tacoma is prepared to face any obstacle thanks to these features.

More about the Toyota Tacoma’s Off-Road-Specific Trims

The Tacoma TRD Off-Road has many characteristics in addition to those described in the previous sentence. The TRD Off-Road has a 32 degree Approach angle compared to 29 degrees for the other models. By increasing the Approach and Breakover angles to 35 and 23.9 degrees, the TRD Pro gains an advantage. You won’t have to be concerned about running into something because to the outstanding 9.4 degree ground clearance. The TRD Pro has a TRD-tuned off-road suspension with 2.5-inch FOX Internal Bypass coil-overs and rear remote-reservoir shocks, whereas the TRD Off-Road has tuned suspension with Bilstein shocks.

How is the 4Runner’s suspension set up?

The 4Runner has provided a comfortable ride for over 35 years, but the off-road is where it belongs. The independent double-wishbone suspension in the front and a 4-link and coil-spring layout in the back make up the 4Runner’s suspension system. Together, this off-road legend’s tried-and-true body-on-frame structure, cutting-edge off-road innovations, and robust powertrain keep it in the lead.

Kinetic Dynamic Suspension System (KDSS)

The 4Runner’s available Kinetic Dynamic Suspension System (KDSS) makes mountains out of molehills. This technology is intended to automatically disconnect the 4Runner’s sway bars as necessary when tackling challenging off-road terrain, helping to enhance wheel articulation. Additionally, the sway bars are made to automatically reattach when the terrain returns to being flat and slick.

KDSS is there in SR5?

Most off-road situations can still be handled by the drivetrain thanks to 4WD and Active Traction Control (A-TRAC).

There are several things to be enthused about despite the absence of leather (SofTex seats), a sunroof, dual-zone climate control, and other intriguing features. The under-floor storage department includes the sliding rear cargo deck.

Although there are four distinct audio options available, including: The base SR5 comes equipped with “Audio.”

  • Audio
  • Added Audio
  • JBL speakers are included in yet another Premium Audio option.
  • High-End Music and Dynamic Navigation

The new (and eagerly anticipated) Android Auto, Apple CarPlay, and Amazon Alexa are all included in the straightforward “Audio bundle.

The Premium Audio with Dynamic Navigation update is available for the SR5 base model, giving drivers access to the most recent map information, routes, and points of interest (POIs) via real-time cloud synchronization.

The Toyota Safety Sense P (TSS-P) Pre-Collision System, which alerts you to surrounding vehicles and pedestrians, is now standard on all models.

The SR5 does not come standard with the E-locker, but it does have Hill Start Assist Control (HAC) and Downhill Assist Control (DAC). KDSS isn’t accessible either on the SR5 Premium.

KDSS light: Why is it on?

This is the KDSS Indicator sign for the Kinetic Dynamic Suspension System. If this yellow/amber light comes on, the system has probably discovered a problem that needs to be fixed by your dealer or an authorized service facility.

The Toyota Kinetic Dynamic Suspension System: What Is It?

Kinetic Dynamic Suspension System is the abbreviation. Thoroughbred off-road vehicles like the 4Runner TRD Off-Road are equipped with this suspension setup. The KDSS Suspension, a system with both mechanical and electrical components, provides a driver with a lot of versatility.

All GX 460s have KDSS, right?

To fully benefit from an extended travel coilover system or a rear long travel system, KDSS does not offer enough flexibility.

Not all options for skid plates and sliders will fit (vendors do have KDSS-compatible options; you just have to be careful).

Larger spare tiresthose that are larger than 265/70R17 or 255/75R17may not fit in the stock location and may need to be pushed into place with the aid of a floor jack.

Although usually rare, KDSS failure will necessitate an expensive repair. However, this would offer the ideal justification for getting rid of KDSS and switching to extended travel suspension.

swing bars that are absurdly huge. A KDSS-equipped GX will therefore corner much flatter than it should.

increased off-road articulation. A GX with KDSS will have about four inches longer suspension travel than a GX without KDSS (with swaybars).

Possesses the Land Cruiser air suspension?

On the more upmarket Lexus LX 570, the Land Cruiser’s cousin, air suspension is an option. While the ride is still trucky, it offers 3 inches of clearance control. Extrapolate a few additional miles per gallon.

What is a fifth-generation 4Runner?

The Toyota 4Runner was initially a modestly sized, two-door SUV but over time developed into the mid-size, tough SUV that it is now. The first models were essentially Toyota 4×4 pickup trucks with a roll bar, a hard shell over the bed, and rear seats placed inside when production began in 1983. The 4Runner has amassed a ferociously devoted fanbase over the course of its existence and developed a reputation as one of the market’s more capable and tough SUVs.