In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Niro are reminded to check the back seat if they opened the rear door before starting out. The 500X doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The Niro EX/SX/Touring has standard Parking Collision-Avoidance Assist that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The 500X doesn’t offer backup collision prevention brakes.
The Niro’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the 500X and is only available on 500X Sport.
The Niro has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the 500X’s blind spot costs extra.
To help make backing out of a parking space safer, the Niro has standard Rear Cross-Traffic Collision Warning and Rear Cross-Traffic Collision-Avoidance Assist automatically engages the brakes to help avoid a collision. Fiat charges extra for Rear Cross Path Detection on the 500X, and only on the Sport and the 500X’s Rear Cross Path Detection does not include automatic braking.
Both the Niro and the 500X have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras and available front and rear parking sensors.

