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 Soul 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.
The Insurance Institute for Highway Safety tests front crash prevention systems. With a score of 6 points, IIHS rates the Forward Collision Avoidance Assist optional in the Soul as “Superior.” The 500X scores only 4 points and is rated only “Advanced.”
The Soul’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.
Both the Soul and 500X offer rear cross-traffic warning, but the Soul with Rear Cross-Traffic Collision Warning also has Rear Cross-Traffic Collision-Avoidance Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The 500X’s Rear Cross Path Detection doesn’t automatically brake.
Both the Soul and the 500X have standard driver and passenger frontal airbags, front side-impact 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 blind spot warning systems.

