HomeAll RepliesReply To: HDMI AND USB-C PORTS NOT WORKING IN 2021 GMC YUKON Reply To: HDMI AND USB-C PORTS NOT WORKING IN 2021 GMC YUKON Sponsored May 22, 2021 at 8:24 am #655773 davidlcryerParticipant Exact same problem. Were you able to fix this? Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored