See also:

Initialization
Items to initialize The following items must be initialized for normal system operation in cases such as after the 12-volt battery is reconnected, or maintenance is performed on the vehicle. ...

If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by your Lexus dealer or a commercial towing service, using a lift-type truck or a flat bed truck. Use a safety chain system for all ...

Volume setting
You can adjust the voice and ring volume. 1. Touch “Volume”. 2. Change each setting according to the following procedures. 3. When you complete all settings, touch “Save”. Automatic vo ...