Home › Forum › GMC › Transmission Temperature Gauge This topic contains 0 replies, has 1 voice, and was last updated by fshman 3 months ago. Author Posts August 13, 2017 at 11:30 am #169277 fshmanParticipant Does my 2017 GMC 3500 Duramax Diesel Denali have a transmission temperature gauge somewhere in the display? If it does I can’t find it. Help! Author Posts You must be logged in to reply to this topic.