Stonic is one of the first cars in its sector to offer Autonomous Emergency Braking as part of Kia's Advanced Driver Assistance Systems (ADAS). It also offers a Lane Departure Warning system with Driver Attention Warning and High Beam Assist. Both are standard in ‘First Edition’ and optional with grade ‘2’. And, in an increasingly connected world, the Stonic ‘First Edition’ offers the full Kia Connected Services package powered by TomTom™. Android Auto™ and Apple CarPlay™ smartphone integration is standard on all models.

Autonomous Emergency Braking with pedestrian recognition takes data from radar and a camera to detect sudden and potentially dangerous braking by a vehicle ahead, and activates the brakes. At speeds between 5mph and 50mph it will come to a complete stop, avoiding many potential collisions and minimising the consequences of others. It is also able to detect pedestrians who wander into its path, and apply the brakes in the same way. Visual and audible alerts warn the driver of imminent danger so that manual intervention is possible before the car starts to brake automatically.  

The Lane Departure Warning system also relies on a camera which in this case recognises the lane markings on roads and senses when the car is about to deviate from its intended course when the indicators have not been activated. Again, the driver is warned visually via a symbol on the instrument display and audibly to correct the car's trajectory.

In Stonic ‘First Edition’ there is also Blind Sport Detection with Rear Cross Traffic Alert. Radar and cameras recognise if the driver is about to change lanes into the path of another vehicle approaching from behind in an adjoining lane, and warn the driver. Rear Cross Traffic Alert uses the same radar and cameras to alert a driver about to reverse out of a parallel parking spot into the path of a vehicle approaching from the side. 

Stonic's Vehicle Stability Management system incorporates Straight Line Stability, which senses any difference in applied brake pressure between the right and left of the car and intervenes to keep it straight, and Cornering Brake Control, which delivers asymmetrical brake pressure when braking in tight curves to counter loss of traction. VSM also features Torque Vectoring to brake an inner wheel if it is running wide in curves, bringing it back onto a safe course. All versions have Hill-start Assist to prevent the car rolling backwards on steep inclines.

Kia Connected Services with TomTom are accessed through a 7.0-inch touchscreen navigation system. The information available to drivers includes live traffic updates, weather reports, speed camera locations and local point-of-interest searches.

Android Auto is available for Android smartphones running 5.0 (Lollipop) or higher, while Apple CarPlay is compatible with iPhone 5 and newer. Both allow users to connect to apps and functions, including voice-guided, hands-free calls and texts and voice recognition. Android Auto accesses Google maps navigation and Google Play music. Apple CarPlay links to pre-loaded maps, music, podcasts, texts and messages and audiobooks, all through Siri voice control.

A DAB radio is standard and is linked in grade ‘2’ to a 7.0-inch display. A reversing camera is included in ‘First Edition’. All models have Bluetooth with music streaming.