What is ECT button function in Toyota Camry 2010?

ECT (Electronically Controlled Transmission) button in the 2010 Toyota Camry serves to alter the transmission shift pattern for improved acceleration and engine braking. When activated, it modifies the transmission's shift points, allowing the engine to rev higher before shifting gears. This results in quicker acceleration as the engine can maintain its power band more effectively. Additionally, the ECT button provides increased engine braking by holding lower gears for a longer duration when decelerating. This assists in slowing down the vehicle without relying solely on the brakes and can be particularly useful in mountainous or slippery road conditions.