Front-wheel-drive vehicles are not designed to be towed in this manner. Towing a front-wheel-drive vehicle with only the rear wheels on the ground can damage the transmission. The drive axles will be turning, even though the engine is off, and this will cause internal damage to the transmission. This can lead to costly repairs or even complete transmission failure.
For towing a front-wheel-drive vehicle, you need a tow dolly that lifts the front wheels *or* a flatbed tow carrier. Alternatively, consider using a tow bar system which allows you to tow the vehicle all four wheels down while the driveshaft is disconnected.
Always check your Kia Sorento's owner's manual for the manufacturer's recommendations on towing. Ignoring these recommendations will void your warranty and potentially cause serious damage.
