HUMMER H3 4D Sport Utility, 3.7L 5-Cylinder MPI DOHC, and 4WD. Hold on to your seats! It's time for Heritage Cadillac! FREE Maintenance for 12,000 miles or 12 months!! 120+ Multi-Point Inspection performed by a quality ASE Certified Technician. You won't find a better SUV than this fantastic-looking 2009 Hummer H3. This H3 will save you money by keeping you on the road and out of the mechanic's garage.