Hyundai Azera: Explanation of scheduled maintenance items

Severe driving conditions

A - Repeatedly driving short distance of less than 5 miles (8 km) in normal temperature or less than 10 miles (16 km) in freezing temperature B - Extensive engine idling or low speed driving for l ...

Engine oil and filter

The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the car is being driven in severe conditions, more frequent oil and filter changes are required ...

See also:

Temperature Control Actuator Components and Components Location
Component Location ...

Spark plugs
Make sure to install new spark plugs of the correct heat range. ...

Steering gear box, linkage & boots/lower arm ball joint
With the vehicle stopped and engine off, check for excessive free-play in the steering wheel. Check the linkage for bends or damage. Check the dust boots and ball joints for deterioration, cracks, ...