Maintenance under Severe Usage Conditions
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary

SEVERE DRIVING CONDITIONS
A - Repeatedly driving short distance of less than 5miles (8km) in normal temperature or less than 10miles (16km) in freezing temperature B - Extensive engine idling or low speed driving for long distances C - Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads D - Driving in areas using salt or other corrosive materials or in very cold weather E - Driving in sandy areas F - Driving in heavy traffic area over 90°F (32°C) G - Driving on uphill, downhill, or mountain road H - Towing a Trailer, or using a camper, or roof rack I - Driving as a patrol car, taxi, other commercial use or vehicle towing J - Driving over 100 MPH (170 Km/h) K - Frequently driving in stop-and-go conditions
See also:
Highway driving
Tires
Adjust the tire inflation pressures to specification. Low tire inflation pressures
will result in overheating and possible failure of the tires.
Avoid using worn or damaged tires which may ...
Safety
The Hyundai Sonata is one of only two cars on the market to have received
both a Top Safety Pick designation from the Insurance Institute for Highway
Safety and a five-star overall safety rating f ...
Electronic stability control (ESC)
The Electronic Stability control (ESC) system is designed to stabilize the vehicle
during cornering maneuvers. ESC checks where you are steering and where the vehicle
is actually going. ESC applie ...


