How often should the CVT transmission fluid in a Corolla be changed?

[DiEliana]

Transmission fluid should be changed every 2 years or 60,000 kilometers. High-grade CVT transmissions can go up to 200,000 kilometers before needing a fluid change, but always refer to the vehicle's maintenance manual for specifics. There are two methods for changing transmission fluid: gravity drain and machine flush. Below are the risks of not changing transmission fluid regularly: 1. Transmission fluid deteriorates and evaporates under prolonged high-speed and high-temperature conditions, accelerating wear on mechanical components and potentially damaging internal transmission parts in severe cases. 2. The vehicle may experience weak acceleration when cold starting. Slight slipping may occur during driving. 3. The transmission fluid thickens, potentially blocking the transmission cooler and causing overheating, which worsens wear and tear.