Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.
Resources for the Repair and Maintenance of your 2003 Hyundai XG350
2003 Hyundai XG350
2003 Hyundai XG350 Problems
A defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.
If the alternator fails, it should be replaced with an improved design which is better able to replenish electrical power to the battery. The new alternator requires a different diameter drive belt.
2003 Hyundai XG350 Recalls (Recent)
Summary: HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. ROAD SALT APPLIED IN THESE JURISDICTIONS DURING THE WINTER MONTHS MAY RESULT IN PROGRESSIVE, INTERNAL CORROSION OF THE FRONT SUB-FRAME ON THE VEHICLES, AND MAY RESULT IN THINNING OR PERFORATION OF THE SUB-FRAME STEEL. THE CORROSION IS FREQUENTLY VISIBLE AND OFTEN DISCOVERED DURING INSPECTION OR ROUTINE MAINTENANCE, AND OWNERS MAY ALSO HEAR NOISES OR NOTICE TIRE MISALIGNMENT AND STEERING PULL. IF THESE SIGNALS ARE UNDETECTED OR UNHEEDED, THE CORROSION MAY PROGRESS AND THE FORWARD MOUNTING OF THE LOWER CONTROL ARM MAY DETACH FROM THE SUB-FRAME.Learn more »
Summary: CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 301, "FUEL SYSTEM INTEGRITY" A VALVE ON THE FUEL TANK ASSEMBLY MAY NOT CLOSE PROPERLY. IF A VEHICLE ROLLS OVER AND THE FUEL TANK ASSEMBLY VALVE IS NOT PROPERLY CLOSED, FUEL SPILLAGE MAY OCCUR.Learn more »
2003 Hyundai XG350 Questions and Answers
This car has had a final drive whine since it was new. The whine starts about 28mph and is audible until the car reaches 35mph. Is this something that could be adjusted out by readjusting the final...
My Hyundai has 23700 miles. The dealer is recommending a timming belt replacement because of age. Is this really nessesary?
I am having problem with my car stalling and barely accelerating just had a transmission put in and it do not want to go over 35 mph could someone please help me. The codes it is giving says it is ...
The local shop has now replaced the Power Steering Pump twice with a remanufactured pump. Still getting leakage. What else could the problem be?
2003 Hyundai XG350 Reviews
Good car. like a more expensive ones, the problem i had is the suspension and the power steering is not too good. need to be treated with love n care. and i hate the radio it is not good "YES" i will replace it with a better one but the original stinks. i love the conftable heated seats. and lots of space on the trunk. it was a plus when traveling. i love my car,
SUSPENSION AND STEERING ARE NOT THAT GREAT BUT IT IS A NICE CAR TO DRIVE.
best driving car ever had. out handles a mercedes. could get better mileage