2004 Kia Optima Problems: 1 Known Issue
2004 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated October 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2004 Kia Optima has 1 documented issue, with 1 rated critical. The most serious is Front Subframe Corrosion and Suspension Collapse. DIY maintenance guides at au7o.io.
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All 1 Known Issue
NHTSA Recalls4 recalls
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
SOME PASSENGER VEHICLES MAY CONTAIN A FUEL TANK ASSEMBLY VALVE THAT MAY NOT CLOSE PROPERLY. IF A VEHICLE WITH A FUEL TANK ASSEMBLY VALVE THAT IS NOT PROPERLY CLOSED WERE TO ROLL OVER, FUEL SPILLAGE MAY OCCUR.
SUSPENSION:FRONT
KIA MOTORS CORPORATION (KMC) IS RECALLING 36,538 MODEL YEAR 2001-2004 OPTIMA 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 STATES DURING THE WINTER MONTHS MAY RESULT IN PROGRESSIVE, INTERNAL CORROSION OF THE FRONT SUBFRAME. OVER TIME, SUCH SUBFRAME CORROSION NEAR THE CONNECTION TO THE LOWER CONTROL ARM CAN LEAD TO WHEEL MISALIGNMENT AND/OR OTHER NOTICEABLE STRESS IN STEERING, OR ACCELERATED ABNORMAL TIRE WEAR.
ELECTRICAL SYSTEM:STARTER ASSEMBLY
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 2.5 AND 2.7 LITER V6 ENGINES, THE CRANKSHAFT POSITION SENSOR (CKP) CASES DID NOT MEET DIMENSIONAL SPECIFICATIONS.
AIR BAGS:SIDE/WINDOW
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SIDE AIR BAG WIRE HARNESS FOR THE DRIVER POSITION COULD BE MIS-ROUTED, WHICH COULD RESULT IN IT BEING PINCHED OR CUT BY THE SEAT CUSHION TILT MECHANISM.
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Frequently Asked Questions
What are the most common Kia Optima problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2004 Kia Optima has 1 documented issue. The documented issue is: Front Subframe Corrosion and Suspension Collapse. Of these, 1 is rated critical and should be addressed promptly.
Is the Kia Optima reliable?
The 2004 Kia Optima has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Front Subframe Corrosion and Suspension Collapse. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2001-2004 Kia Optima Front Subframe Corrosion and Suspension Collapse?
NHTSA recall 09V-183 covers 2001-2004 Optimas originally sold in or currently registered in specified salt-belt states and the District of Columbia. Road salt can cause progressive internal corrosion of the front subframe near the lower-control-arm connection, leading to wheel mi… Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.