Problems owners report
Complaints filed with NHTSA about the 2001 Kia Optima, by the system named in each complaint. One complaint can name several.
- Structure35
- Suspension28
- Air bags27
- Engine and engine cooling24
- Electrical system17
- Latches/locks/linkages15
- Service brakes, hydraulic12
- Power train12
- Vehicle speed control7
- Equipment7
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 7 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 2001 Kia Optima failed the safety check 3.75% of the time — 87% more often than the average 2001 passenger car (2.00%). Median odometer at inspection: 88,865 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
In New Zealand
2 2001 cars are on the New Zealand register.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Recalls
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.
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.
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.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Kia told its dealers about the 2001 Kia Optima: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 633730 | MALFUNCTION INDICATOR LIGHT ILLUMINATION WITH OXYGEN SENSORS RELATED DIAGNOSTIC TROUBLE CODES. *TT |
| 633729 | CHANGE IN DIAGNOSTIC TROUBLE CODE P0128, THERMOSTAT MALFUNCTION, LOGIC. *TT |
| 625168 | TOWING CAPACITY. *ET |
| 622194 | THIS BULLETIN PROVIDES INFORMATION RELATED TO THE REPAIR OF CERTAIN VEHICLES WITH SUNROOF DRAIN TUBE WATER LEAK COMPLAINTS. *TT |
| 10201529 | TECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information relating to some Kia models that may exhibit fogging, condensation, and/or moisture inside a headlamp assembly. Generally, a fogging condition is considered normal and can be eliminated by turning on the headlamps with the engine running for up to 30 minutes or during normal driving conditions. Headlamp assembly replacement WILL |
| 10183431 | TSB - USE OF AFTERMARKET USB CHARGING CABLES IN USB/12V PORTS - This article provides information regarding the use of USB ports and 12V power outlets to connect/charge mobile phones. Customers may experience issues with their head units that may be related to the use of aftermarket USB charging cables, including; * Electrical interference and limited or no functionality when attempting to play music, or when charging a device through the USB port * Excessive static or noise when listening to the audio source * Malfunctions and screen freeze of the head unit screen * Slow down of the sys |
| 10133170 | PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned and transferred to the new engine. |
| 10109812 | TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners, which are designed to lock into place once fully attached, are utilized in various Kia models and are strictly intended for ?one time use.? Some examples are: axle shaft nuts with stake collar, cotter pins, washers with locking tabs and other similar hardware, including threaded fasteners with pre-applied ?thread-locking adhesives.? It is critical for technicians to be aware that ALL such locking fasteners, regardless of type, are for ?one time use? only. |
| 10109777 | TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners utilized in various Kia models are strictly intended for ?one time use?. Though not limited to the following, some examples are: axle shaft nuts with stake collar, cotter pins, washers with locking tabs and other similar hardware, including threaded fasteners with pre-applied ?thread-locking adhesives.? |
| 10091489 | TSB: AUTOMATIC TRANSMISSION FLUID APPLICATION GUIDE - THIS BULLETIN PROVIDES INFORMATION RELATING TO THE CORRECT AUTOMATIC TRANSMISSION FLUIDS THAT ARE REQUIRED FOR EACH KIA MODEL. REFER TO THE SHOP MANUAL ON KGIS FOR THE SPECIFIC KIA MODEL, THEN REFERENCE THE AUTOMATIC TRANSAXLE SYSTEM/ REPAIR PROCEDURES/ INSPECTION AND ADJUSTMENT SECTION FOR THE CORRECT ATF CHECK/FILL PROCEDURES. |
| 10034246 | KIA: INTERMITTENT MIL ON WITH NO FAULT CODE STORED; INFORMATION ABOUT DTC P1330. PROVIDES INFORMATION RELATING TO CERTAIN VEHICLES. IN AFFECTED VEHICLES AN INTERMITTENT SHORT TO GROUND IN A CIRCUIT ONLY INTENDED FOR TESTING PURPOSES MAY CAUSE THE MIL TO ILLUMINATE AND A DTC P1330 (SPARK TIMING ADJUST) TO BE STORED. *PE |
| 10033464 | KIA: ECM UPGRADE WITH TP SENSOR REPLACEMENT-MIL ON WITH DTC P2135/P0638. INFORMATION RELATED TO ECM SOFTWARE AND TP SENSOR UPGRADE ON SOME VEHICLES WITH 2.7L ENGINES WHICH MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH THE ELECTRONIC THROTTLE CONTROL (ETC) SYSTEM RELATED DTC P2135 OR P0638 OR P2A00 OR P2A03. *PE |
| 10031006 | KIA: DURING A SERVICE PROCEDURE THAT REQUIRES THE SUBFRAME TO BE REMOVED FROM A 2001-2005 OPTIMA (MS) (V-6 OR I-4), AN IMPROVED SERVICE PROCEDURE HAS BEEN DEVELOPED TO ENHANCE SERVICE EFFICIENCY. *PE |
| 10026726 | KIA: ALL MODELS. ARTICLE PROVIDES INFORMATION RELATING TO THE IMPROVED DURABILITY OF BULB LIFE FOR REAR COMBINATION BULB; REAR STOP LAMP/TAIL LAMP BULB UTILIZED ON MULTIPLE KIA MODELS. *PE |
| 10023626 | THIS BULLETIN PROVIDES INFORMATION RELATING TO AN ENGINE HESITATION OR THE ILLUMINATION OF THE MALFUNCTION INDICATOR LAMP (MIL) FOR P0123 (THROTTLE POSITION SENSOR / SWITCH (A) CIRCUIT HIGH INPUT). *NJ |
| 10022959 | SUPPLEMENT RESTRAINT SYSTEM (SRS) WARNING LAMP ILLUMINATION FOR B1378 AND B1382. *NJ |
| 10016851 | ENHANCED DIAGNOSIS AND REPAIR FOR P0446/P2422. *TT |
| 10015272 | IMPROVED TIMING BELTS FOR THE KIA RIO AND OPTIMA. *TT |
| 10006107 | SERVICE MANAGER NOTIFICATION REGARDING ENGINE CONTROL MODULE REPROGRAM AND OXYGEN SENSOR REPLACEMENT. *TT |
| 10006106 | DEALER PRINCIPAL NOTIFICATION REGARDING ENGINE CONTROL MODULE REPROGRAM AND OXYGEN SENSOR REPLACEMENT. *TT |
| 10006105 | QUESTIONS AND ANSWERS FOR CAMPAIGN SC037 ENGINE CONTROL MODULE (ECM) REPROGRAM AND OXYGEN SENSOR REPLACEMENT. *TT |
| 10006104 | OWNER NOTIFICATION REGARDING CAMPAIGN SC037 TO REPLACE THE ENGINE CONTROL MODULE (ECM) AND OXYGEN SENSOR. *TT |
| 10006103 | A SERVICE CAMPAIGN FOR POSSIBLE O2 SENSOR MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. KIA WILL REPROGRAM THE ENGINE CONTROL MODULE (ECM) AND REPLACE THE OXYGEN SENSORS AS NEEDED. *TT |
| 10002355 | OPTIMA CHARGING SYSTEM - V6 ENGINE. *TT |
| 10001683 | SERVICE CAMPAIGN TO REPLACE OXYGEN SENSORS AND TO REPROGRAM THE ENGINE CONTROL MODULE (ECM) TO REDUCE INCIDENCE OF MALFUNCTION INDICATOR LAMP ILLUMINATION WITH OXYGEN SENSOR RELATED DIAGNOSTIC TROUBLE CODES. *TT |
NHTSA manufacturer communications (public domain)
NHTSA investigations
POWER DOOR LOCK FAILURE
POWER DOOR LOCK FAILURE
NHTSA Office of Defects Investigation