Make sure the relevant warnings and cautions have been read and fully understood before adjusting the electronic air suspension. See ELECTRONIC AIR SUSPENSION SAFETY.
Extended mode is an automatic suspension height setting that raises the vehicle to assist maneuvering in the event that the vehicle is:
The touchscreen automatically displays the RIDE HEIGHT screen when extended mode is activated. See ELECTRONIC AIR SUSPENSION CONTROLS.
The touchscreen may not display the RIDE HEIGHT screen if it determines a higher priority screen should be displayed.
Follow the instructions displayed on the touchscreen if additional suspension lift is required.