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 Plug-In Hybrid are reminded to check the back seat if they opened the rear door before starting out. The Mirai doesn’t offer a back seat reminder.
When descending a steep, off-road slope, the Niro Plug-In Hybrid’s standard Downhill Brake Control allows you to creep down safely. The Mirai doesn’t offer Downhill Brake Control.
To help make backing out of a parking space safer, the Niro Plug-In Hybrid has standard Rear Cross-Traffic Collision Warning with Rear Cross-Traffic Collision-Avoidance Assist, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Parking Support Brake costs extra on the Mirai.
Both the Niro Plug-In Hybrid and the Mirai have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear 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, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available front parking sensors.

