Audio and navigation units. DIY updates that go wrong and brick the entertainment unit are not covered under the Kia 7 year warranty.
I do not pay anything for an update here in bremerhaven in germany.....Kia dealer simply put in the usb and start the update while it’s parjåked outside the shop....it super service.....Welcome to the forum,’fibonacci1101’.
The answer is no. If you are confident with basic computer maintenance, you should have no trouble updating the SW/FW and mapping in your Carens.
However, if you are nervous about undertaking the task, you could simply get the dealer to perform the job. I don’t know how much they charge in Switzerland but in the UK, it’s a very reasonable £25.00 inc VAT.