Why doesn't the Avalon have a lock confirmation sound?

[Ryder]

The lock sound of the Avalon needs to be set manually. The method to set the lock sound for the Avalon is as follows: turn off the vehicle and ensure all four doors are closed, then simultaneously press the lock and unlock buttons on the remote key for more than three seconds. This will toggle the lock sound on or off, serving as a reminder when locking the vehicle. Below is additional information about the Avalon: 1. The Avalon is equipped with a 2.5L naturally aspirated engine, with a maximum power of 154kW and a maximum torque of 250Nm. 2. It is paired with an 8-speed automatic transmission, featuring a front suspension type of MacPherson strut independent suspension and a rear suspension type of E-type multi-link independent suspension. 3. The Avalon is a mid-size car under Toyota, with dimensions of 4975mm in length, 1850mm in width, and 1450mm in height, and a wheelbase of 2870mm. 4. The fuel tank capacity of the Avalon is 60L, and it uses 215/55R17 tires.