2025 3.0 Duramax Problems. Just purchased a 2025 sierra 1500 at4 with the 3.0 diesel and l was really enjoying it until i got to 67 miles on odometer and then the dic said “reduced acceleration drive with care” and engine light came on as well as seat belts not connected indicator. They're playing dumb and making it hard for people to make a claim.
I have a 2025 2500 duramax. I have 9975 miles now and i have not had the regen notice since.