See also:

Use High Quality Ethylene Glycol Coolant
Your Hyundai is delivered with high quality ethylene glycol coolant in the cooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the cooling syst ...

Safety
The Hyundai Sonata is one of only two cars on the market that have received both a Top Safety Pick designation from the Insurance Institute for Highway Safety and a five-star overall safety rating ...

Audio System
NOTE: If you install an aftermarket HID headlamp, your vehicle's audio and electronic device may malfunction. ...