With the rapid development of various technologies in smart cabins,multiple tasks inside the vehicle occupy the driver's visual and auditory channels,resulting in a decline in the effectiveness of traditional voice navigation interaction and an increase in driving workload.However,the idle tactile channel can complement the interaction.This study conducts design and research on tactile prompt navigation based on the DALI workload scale,verifying that the addition of tactile prompts helps reduce driving workload during navigation interaction,providing ideas and references for the design of navigation with more modalities.