See also:

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

Check battery and cables
Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in section 7. The level of charge in your battery can be checked by an authorized HYUNDAI ...

Tire rotation
To equalize tread wear, it is recommended that the tires be rotated every 7,500 miles (12,000 km) or sooner if irregular wear develops. During rotation, check the tires for correct balance. When r ...