When do you change transmission fluid on 2007 highlander?

For a 2007 Toyota Highlander, it's generally recommended to change the Transmission Fluid every 30,000 to 60,000 miles, depending on driving conditions and usage. If you frequently drive in harsh conditions, such as towing or stop-and-go traffic, more frequent changes may be necessary. Always consult your owner's manual for specific guidelines and recommendations based on your vehicle's maintenance history.