The 2015 Infiniti QX80 is a full-size luxury SUV built for families and drivers who want a powerful V8, serious towing capability, and three-row space with premium styling. It sits near the top of Infiniti’s SUV lineup and competes with models like the Lexus LX, Cadillac Escalade, and Lincoln Navigator, blending comfort with traditional body-on-frame strength. The 2015 model continues the second-generation QX80 that debuted for 2014, carrying over the modernized exterior and upgraded cabin design introduced in that redesign. It’s ideal for buyers who prioritize smooth highway cruising, a commanding driving position, and upscale features over fuel economy and sporty handling.

1) 5.6L V8 POWERTRAIN: The 2015 QX80 comes with a 5.6-liter V8 producing around 400 horsepower (paired to a 7-speed automatic), delivering confident acceleration and strong passing power for a vehicle of this size. 2) THREE-ROW SEATING AND BIG-CARGO UTILITY: Seating for up to seven or eight depending on configuration, with adult-friendly space in the first two rows and usable third-row room for kids and shorter trips. 3) AVAILABLE 4WD AND TOWING MUSCLE: Rear-wheel drive is standard with available 4WD for added traction; towing capability is a major draw for boats, campers, and trailers when properly equipped. 4) LUXURY COMFORT AND TECH: Common highlights include premium leather seating surfaces, heated front seats, a power-folding third row, and available rear-seat entertainment on many trims/packages. 5) DRIVER-ASSIST AND CAMERA TECH: Many 2015 QX80 models feature Infiniti’s Around View Monitor (360-degree camera system), which is especially helpful given the vehicle’s size when parking and maneuvering.

Shoppers researching “2015 Infiniti QX80 reliability” will find it can be a durable SUV when maintained, but there are several “2015 Infiniti QX80 problems” and “2015 Infiniti QX80 common issues” owners mention repeatedly: 1) AIR SUSPENSION (IF EQUIPPED) SAGGING OR FAILURE: Models equipped with the Hydraulic Body Motion Control or rear air suspension (depending on build) may develop sagging, compressor issues, or leaking air springs over time. Symptoms often show up around 70,000–120,000 miles and include uneven ride height, harshness, or warning lights. 2) BRAKE WEAR, ROTOR WARPING, AND SHUDDER: Due to weight, some owners report faster-than-expected brake pad and rotor wear, plus vibration under braking. This can appear as early as 30,000–60,000 miles depending on driving style, mountain use, and towing. 3) INFOTAINMENT/SCREEN AND ELECTRICAL GLITCHES: Complaints can include frozen screens, Bluetooth connection issues, camera display problems, or intermittent audio/controls. These can be annoying rather than catastrophic, but diagnosing can take time since symptoms may come and go. 4) HIGH OPERATING COSTS AND FUEL ECONOMY: Not a “failure,” but a common ownership complaint. The 5.6L V8 is powerful but thirsty, and tires, brakes, and fluids tend to cost more than smaller SUVs. Buyers sometimes interpret this as “reliability” when it’s really cost-of-ownership.