Over 200 people are killed each year when backed over by motor vehicles. The Armada has standard Rear Automatic Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The GX doesn’t offer backup collision prevention brakes.
Both the Armada and GX have rear cross-traffic warning, but the Armada Platinum has Intelligent Back-Up Intervention (automatically applies the brakes) to better prevent a collision when backing near traffic. The GX’s Rear Cross-Traffic Alert doesn’t automatically brake.
Both the Armada and the GX have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive and around view monitors.
The Nissan Armada weighs 472 to 908 pounds more than the Lexus GX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

