TSB: Lexus navigation is now available with additional features such as Apple CarPlay® and Amazon Alexa? for applicable 2018 ? 2019 model year Lexus vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE
Performing this update may change certain head unit operation conditions. For a full list of changes, please see the System Limitations and FAQ. NOTICE Failure to follow the Software Update Procedure exactly as written may cause damage to the head unit.
