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What is the KDSS system?

2 Answers

VanLily

07/29/25 11:23am

KDSS stands for Kinetic Dynamic Suspension System. Below are relevant introductions about KDSS: 1. Composition of KDSS: It is an electronically controlled power-adjustable suspension system. It combines two seemingly contradictory performance characteristics: During off-road driving, it allows the suspension to extend freely, ensuring sufficient wheel travel for tire grounding, thereby improving stability and passability. During highway driving, it suppresses suspension extension, with the stabilizer bar twisting to counteract steering tilt, enhancing handling and comfort. 2. Performance description of KDSS: In KDSS normal mode, when the vehicle is in a turning state, the outer suspensions of both front and rear wheels are compressed, while the inner suspensions are extended. This causes the stabilizer bar to twist, resisting body roll. There is no fluid flow between the two pipelines connected to the two hydraulic pumps, operating similarly to conventional suspensions but with effectively enhanced anti-roll capability.

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LeAurora

08/13/25 6:46pm

KDSS is a dynamic suspension system found in Toyota vehicles. I've driven an off-road vehicle equipped with it, and it performs exceptionally well on gravel roads. It automatically adjusts the stiffness of the stabilizer bars, relaxing the suspension during off-road driving to allow independent wheel movement, enhancing traction over rough terrain. On highways, it strengthens the stabilizer bars to reduce body roll during turns, making the drive more stable and comfortable. I've used it for long-distance drives in mountainous areas, where the reduced body sway helped minimize motion sickness for my family. The system operates via a hydraulic mechanism, requiring no manual control, and is highly reliable. As a car enthusiast, I believe it perfectly balances adventure and daily usability, even slightly reducing fuel consumption by minimizing resistance—though don't expect significant savings. For off-road enthusiasts, this feature is a major plus when choosing a vehicle, especially when paired with a four-wheel-drive system for added safety.

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