I got a message to update my nav map. In service date March 2018 so 21/2 years old.
I guess I need to buy a 16g flash drive and it takes up to 4 hours of running the engine to update?

I'm confused...how much time is typical to download from the flash drive?

Thanks

 

I have just update my 2020 CRV SR Hybrid (UK) maps, took around an hour to download to the USB memory stick and approixmately 20 minutes to upload into the sat nav.
Hope this helps