I am selling my fully loaded 2025 GMC Sierra 2500HD AT4. It still has a full warranty until January 2026. I barely drive it and haven't used it as I had hoped. I have never towed or taken it offroad. It's still in near perfect condition inside and out. Title in hand. It has pretty much every add-on. Listing some below. Window Sticker Attached. - 6.6L Duramax Diesel - AT4 Premium Package - Power Retractable Steps - Gooseneck/5th Wheel Package - Dual Alternators - High Idle Switch - Lockable Console Vault - Rear Under Seat Storage (added by me) Please reach out if you're interested.