You can either hire a pro to do it, or if you feel confident, you could give it a try yourself. I haven't personally done it, but here's a helpful YouTube video by DJ Blink-Blink that might be worth checking out. Hope that helps!
Anyone know if there's a class action lawsuit brewing against Hyundai regarding these Ioniq ICCU problems we've been having? Mine's acting up, and I'm looking into my options. Are there any active or upcoming lawsuits I can join?