The volume of the tank on your Land Cruiser is 12L.
When the amount of AdBlue® drops to approximately 1500 miles remaining, the “low AdBlue®” light is lit and a warning message is displayed. If your tank is completely empty, pour a minimum of 3,7 L to switch the warning off.
Once you run out of AdBlue®, you can still drive as long as you do not stop. It is not possible to restart once the tank is empty.
This information can vary on some vehicles of the same model in relation to the options chosen by the manufacturer.