Harman Navigation “Route Calculation Unsuccessful” Message – 2019-2020 Subaru
NHTSA ID Number: 10237304 Manufacturer Communication Number: 15-247-19R Summary “Harman Navigation âRoute Calculation Unsuccessful” Message. (Issue has been resolved in Past Firmware updates, please see TSB 15-236-18R for Software Update Bulletin for procedure).” NUMBER: 15-247-19R DATE: 10/02/19 REVISED: 05/02/23 APPLICABILITY: All Models Equipped with Harman Audio / Navigation Head Units SUBJECT: Harman Navigation “Route Calculation Unsuccessful” … Read more