Hyundai is all over the place on this.
The website (I just logged into my Hyundai owner dashboard and went to blue Link) had this when I used the Virtual Assistant and typed: 3G Blue Link
However, it doesn't appear (?) that the 2017 is affected? But then again the Blue Link manual is very vague.
"Upcoming third party cellular network changes will affect access to Hyundai Blue Link features for certain 2012-2016 vehicles. Affected vehicles include all 2012-2014 Blue Link equipped vehicles, 2015 Blue Link equipped vehicles (except Sonata with Navigation and Hyundai Genesis), and 2016 Blue Link equipped Santa Fe, Equus, Elantra, Elantra GT, Veloster (Non-Navigation), and Sonata Hybrid vehicles.
Feb 01, 02:48 PM
The Hyundai Blue Link devices in the affected vehicles require a 2G cellular network to access Blue Link services. These cellular networks are maintained by wireless service providers outside the control of Hyundai and Hyundai Blue Link. Due to changes in telecommunications technology over time, the wireless service provider of the network enabling the use of Hyundai Blue Link devices in the affected vehicles has recently announced that it will discontinue 2G cellular network service by December 31, 2021.
Feb 01, 02:48 PM
As a consequence, after December 31, 2021, we regret Hyundai Blue Link on certain 2012-2016 vehicles will become inactive as a result of the network discontinuation and access to Blue Link services will be unavailable."
The Users Manual for Blue Link NP060 0214 A
Rev 02/04/2020
says this
"NOTICE: THIS VEHICLE MAY UTILIZES 3G WIRELESS TECHNOLOGY, WHICH
IS EXPECTED TO NO LONGER FUNCTION AFTER 2022. YOUR VEHICLE WILL
BE UNABLE TO CONNECT TO BLUE LINK SERVICES AFTER 2022 AND MAY
NOT BE UPDATED TO SUPPORT OTHER TECHNOLOGIES. "