For enhanced safety, the front and rear seat shoulder belts of the Kia Niro have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Subaru Crosstrek doesn’t offer pretensioners for its rear seat belts.
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 Crosstrek’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. Subaru charges extra for Rear Cross Traffic Alert on the Crosstrek and its not available on the Base and the Crosstrek’s Rear Cross Traffic Alert does not include automatic braking.
Both the Niro and the Crosstrek have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, driver alert monitors and available front and rear parking sensors.

