SatNav was a navigational device, used in 21st century. (TV: Spyfall)
The Sixth Doctor claimed to have as acute a sense of directional hearing as a bat with a SatNav. (AUDIO: Absolute Power)
In 2020, south-east of Little Earlham, a SatNav in an MI6 car was taken into control by Kasaavin. It killed its driver with a laser blast and tried to kill the Thirteenth Doctor, Yasmin Khan, Ryan Sinclair and Graham O'Brien. (TV: Spyfall)