See also:

Lubrication chart
...

Valve clearance
Inspect excessive valve noise and/or engine vibration and adjust if necessary. An authorized HYUNDAI dealer should perform the operation. ...

Advanced Supplemental Restraint (AIRBAG) System
1. Driver's front airbag 2. Passenger's front airbag 3. Side impact airbag 4. Curtain airbag WARNING: Even in vehicles with air bags, you and your passengers must always wear the seat ...