LTD switch

The LTD switch, short for Locate the Doctor, was a green switch located on the TARDIS console which could detect the Doctor's heartsbeat and automatically pilot to retrieve him.
The Eighth Doctor teased that it was a "big red button" at the centre of the console, and that it was short for "Lucie to Drive". Lucie Miller located the switch, and brought the TARDIS to him when he was lost amongst some rubble. After they finally departed from Orlok, she remarked, "Hey, what happened to that Lucie to Drive?" (AUDIO: The Beast of Orlok)
Category:TARDIS components
Category:Navigation technology