HomeAll RepliesReply To: 2024 GMC Rain Sensing Windshield Wiper Operation Reply To: 2024 GMC Rain Sensing Windshield Wiper Operation Sponsored September 20, 2023 at 12:55 pm #780282 firepoggyParticipant Not a GMC but my 22 refresh LTZ does not have an auto setting. After turning the toggle on within the settings menu all I do is turn the wipers on and they take it from there. 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