How often should I change the transmission fluid in my Toyota Yaris?

I recently purchased a 2015 Toyota Yaris and I'm not sure how often I should be changing the transmission fluid. I've heard conflicting answers from different sources. Can someone give me a definitive answer?

As a general rule, it is recommended to change the transmission fluid every 30,000-60,000 miles. However, it is always best to consult your vehicle's manual for the specific maintenance schedule for your Toyota Yaris.

I personally change the transmission fluid in my Toyota Yaris every 40,000 miles. It's always better to be safe than sorry and have clean fluid running through your transmission.

If you're experiencing issues with your transmission, it may be a sign that the fluid needs to be changed. I suggest consulting a mechanic to assess the condition of the fluid and determine if a change is necessary.