
RAV4 CVT transmission uses a steel belt. Below are the relevant details: Power transmission methods: CVT has two power transmission methods, one is a steel belt, and the other is a chain. Generally speaking, steel belts are typically used for low-torque engines, while chains are used for high-torque engines. From a practical usage perspective, chains are undoubtedly more durable, robust, and have a longer service life. Steel belt: The CVT steel belt is based on two embedded steel belts as the foundational support, with hundreds of steel plates attached to the metal belt. This type of push-plate structure can only transmit power by pushing, utilizing the hardness of the material between the push plates to form thrust. The push plates exhibit minimal deformation under external forces. During power transmission, the driving pulley tightly presses the entire side of the steel belt to create static friction, and the driving pulley pushes the driven pulley to rotate via the steel belt.

I've been driving the RAV4 with CVT for a while and know that its transmission uses a chain instead of a steel belt. The chain design is more robust and durable, less prone to slipping or breaking under high torque loads, especially when an SUV is driving on mountain roads or accelerating. Toyota's Direct Shift technology combines a launch gear with the chain, making the drive smooth and fuel-efficient, unlike some steel belt CVTs that can produce whining noises. Chain maintenance is also simple—just regular transmission fluid changes—and it's less likely to overheat or cause issues. Although steel belts are cheaper, they have a shorter lifespan, while chains are better suited for the power demands of a vehicle like the RAV4.

As someone who has long followed automotive technology, I understand that the RAV4's CVT transmission utilizes a chain drive. The chain is structurally and materially more robust, capable of handling the higher torque loads of an SUV while reducing the risk of slippage. Compared to steel belt CVTs, chain-driven systems operate more quietly and efficiently, delivering seamless and smooth acceleration in daily driving. Toyota opted for the chain to enhance reliability and lower maintenance costs, as chains require less frequent replacement. Drivers who have experienced different vehicles consistently report that chain-driven CVTs perform stably, even on long journeys, without concerns about sudden failures.

Having worked on many Toyota vehicles, the RAV4's CVT uses a chain drive. The chain is more durable than a steel belt, transmits power more efficiently, and reduces slippage issues. The chain performs stably under high temperatures or heavy loads, and maintenance is simple, requiring only regular oil changes. While steel belts are prone to wear, chains offer higher reliability, making them suitable for SUVs. In use, the chain produces less noise, has a longer lifespan, and provides greater peace of mind.


