The GX 550 is offered in three trim levels: Premium, Luxury and Overtrail with Plus versions of all three. There is a single powertrain on offer in the GX 550, a 3.4L twin turbo V6 that provides 349 hp and 479 pound-feet of torque. This engine is exclusively combined with a seamless and responsive 10-speed automatic transmission, which channels power to a standard full-time four-wheel-drive system featuring a lockable Torsen limited-slip center differential. This configuration results in a notable improvement in acceleration and responsiveness over the prior GX model. Merging onto highways and performing overtaking maneuvers is accomplished with ease, as the generous low-end torque allows the GX to feel nimbler than its substantial size would imply. Additionally, the towing capacity is remarkable, rated at up to 9,000 pounds across most trims when properly equipped.
The Premium trim features a rear spoiler, a power liftgate, a power sunroof, heated mirrors with integrated turn signals, 12.3-in multi-information display, LED headlamps, daytime running lights, and front fog lights, 20-inch wheels, seating for 7, Intuitive Parking Assist with Auto Braking, heated and ventilated front seats, dual-zone climate control with rear controls, an HD satellite, a 10-speaker sound system, a 14-inch touchscreen, voice activated navigation, mobile hotspot, and 6 USB ports.
The Luxury trim 22-inch wheels, 10-way heated and ventilated power driver's seat, a video feed rearview mirror, Front massaging seats, heated rear seats, leather upholstery, driver seat memory, a 21-speaker sound system, and panorama glass roof.
The Overtrail trim is equipped with a driver selectable differential, adaptive suspension, hill decent control, 18-inch wheels, seating for 5, massaging front seats, off-road low speed cruise control, LED foglamps, surround view camera, 4 USB ports, and a power rear door with kick sensor.
The 2025 GX is equipped with the standard Lexus Safety System+ 3.0, which features a range of advanced driver-assistance systems. This all-encompassing package includes front and rear parking sensors, active lane departure, adaptive cruise control, blind spot warning, forward and rear collision mitigation, front pedestrian detection, and a traffic sign information system.
The Premium trim features a rear spoiler, a power liftgate, a power sunroof, heated mirrors with integrated turn signals, 12.3-in multi-information display, LED headlamps, daytime running lights, and front fog lights, 20-inch wheels, seating for 7, Intuitive Parking Assist with Auto Braking, heated and ventilated front seats, dual-zone climate control with rear controls, an HD satellite, a 10-speaker sound system, a 14-inch touchscreen, voice activated navigation, mobile hotspot, and 6 USB ports.
The Luxury trim 22-inch wheels, 10-way heated and ventilated power driver's seat, a video feed rearview mirror, Front massaging seats, heated rear seats, leather upholstery, driver seat memory, a 21-speaker sound system, and panorama glass roof.
The Overtrail trim is equipped with a driver selectable differential, adaptive suspension, hill decent control, 18-inch wheels, seating for 5, massaging front seats, off-road low speed cruise control, LED foglamps, surround view camera, 4 USB ports, and a power rear door with kick sensor.
The 2025 GX is equipped with the standard Lexus Safety System+ 3.0, which features a range of advanced driver-assistance systems. This all-encompassing package includes front and rear parking sensors, active lane departure, adaptive cruise control, blind spot warning, forward and rear collision mitigation, front pedestrian detection, and a traffic sign information system.
