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Vehicle safety record

2004 Kia Optima Problems, complaints & recalls

Owners have filed 225 complaints about the 2004 Kia Optima with NHTSA, most often about the body, doors & structure (115) and the electrical system (45). Those complaints describe 8 crashes, 3 fires and 8 injuries. It is covered by 1 recall, the latest in May 2009 for the front. For comparison, the 2003 has 144 and the 2005 has 144.

NHTSA data checked

CAbout as many problems as a typical Optima year, for its age

#56 most complained-about 2004 vehicle

Complaints
225
Recalls
1
Crashes
8
Fires
3
Injuries
8
Deaths
0

Most common 2004 Kia Optima problems

Share of all 225 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.

2004 Kia Optima recalls 1

Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do

Suspension: front

09V18300036,538 vehicles affected

The problem
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.
The risk
Corrosion of the front subframe could lead to separation, possibly resulting in a vehicle crash.
The fix
Kmc will notify owners and dealers will repair the vehicles free of charge. The safety recall began on june 15, 2009. Owners may contact kia's consumer assistance center at 1-800-333-4542.

What owners say

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225 complaints about the 2004 Kia Optima

Newest first, as filed with NHTSA by owners. Page 1 of 9.

Suspension

Had some noise coming from the front of the car, had my mechanic look at it, he said we needed a control arm. When he took off the cover to replace the control arm, he found the sub frame had rotten and was cracking. As I looked online, I saw that KIA had a recall for this issue. When I contacted KIA, their response was "as my car is not under warranty, they are not required to repair the car" The car in question has 70, 558 miles on it. We are the 2nd owner.

Filed Incident SuspensionNHTSA 11642022
Body, doors & structure

Door lock/unlock mechanism has failed. Unable to unlock and open door from outside or inside. This defect causes the door to stay locked and unable to open. This can trap people inside of the car if they are unable to crawl out a window or exit from another door. There are many reports of this on Kia forums and general Google search. There was no warning that this part was wearing out until it became impossible to open the door.

Filed Incident StructureNHTSA 11480899
Fuel system

The contact owns a 2004 Kia Optima. The contact stated that after refueling, the vehicle would not start. The vehicle was not taken to a local dealer. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 04V180000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was informed of the failure and confirmed that the vehicle was not included in a recall. The failure mileage was approximately 145,000.

Filed Incident Fuel system, gasolineNHTSA 11452262
SuspensionAirbagsDriver assistance

I was repairing brakelines, while observing under carriage I noticed suspension rust, frame. Looked up recalls and this is one. I included screenshot of proog

Filed Incident Suspension · Air bags · Lane departureNHTSA 11405889
Acceleration & cruise control

While driving on a highway with cruise control active, I was unable to turn off the cruise control with the steering wheel control buttons. The cancel and set buttons had no effect when pressed. The car remained traveling at the set speed. Tapping on the brake pedal did cancel the cruise control.

Filed Incident Vehicle speed controlNHTSA 11172999
Body, doors & structure

While stationary - driver's side door will not open from inside or outside with key, manual lock or electronic lock controls (stuck closed). Unable to evacuate car from driver's side. Safety concern - lack of egress

Filed Incident StructureNHTSA 11081243
AirbagsCrash1 injury

Tl* the contact owned a 2004 kia optima. While driving 25 mph, another vehicle crashed into the contact's vehicle from the front. The passenger side air bags failed to deploy. A police report was filed. The contact sustained stomach and chest injuries that required medical attention. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was not contacted. The vin was unknown. The approximate failure mileage was 57,000.

Filed Incident Air bagsNHTSA 11062981
Electrical system

Unable to open passenger door due to door lock actuator stopped working. Unsafe to drive.

Filed Incident Electrical systemNHTSA 11056254
Body, doors & structure

Tl* the contact owns a 2004 kia optima. When the vehicle was taken to bill doraty kia (2925 medina rd, medina, oh 44256, (330) 721-9500) for routine brake service, the technician found a crack in the front frame. The dealer stated that the vehicle was safe to drive at that time. The contact was informed that the frame would need to be replaced, but no repairs were made. Since winter was approaching, the contact was concerned that the frame would completely crack due to the weather and salted roadways in her state....

Read the full complaint

The contact received a manufacturer recall and extended warranty notices in 2009. The vehicle was taken to the dealer, but no issues were found. The dealer sent pictures of the cracked frame to the manufacturer. The manufacturer was notified and issued case number: 2560103. The manufacturer stated that they would contact the local dealer. The contact was awaiting a call back from the manufacturer and dealer. The failure mileage was approximately 48,000.

Filed Incident StructureNHTSA 11051307
Body, doors & structure

Driver door does not open from inside nor from outside. When unlocking the doors, all doors will open except the driver's door. Center lock mechanism or manual use of keys does not help. This is without a doubt a safety problem where driver can be trapped in the car in case of emergency. This is very common in kia optima models.

Filed Incident StructureNHTSA 10981452
Other & unknown

Cannot add fuel because the pump stops from filling up the tank. It took me about 7 times to get in $7 worth of gas. Even though this car only has 25,830 miles on it. It has hardly been used. We put gas in about every 3 or 4 weeks - not that often.

Filed Incident Unknown or otherNHTSA 10968309
Suspension

Tl* the contact owns a 2004 kia optima. The contact stated that the vehicle failed inspection due to severe corrosion of the subframe. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The contact referenced nhtsa campaign number: 09v183000 (suspension) as a possible solution to the failure; however, the vin was not included. The failure mileage was approximately 57,000. ..Updated 05/05/17 *bf *cn

Filed Incident SuspensionNHTSA 10956326
Engine & cooling

Tl* the contact owns a 2004 kia optima. While driving approximately 20 mph, the vehicle lost power and several indicators illuminated on the instrument panel. The vehicle shut down and was pushed to the side of the road with the help of the state highway patrol. The vehicle was later towed to an independent mechanic who diagnosed that the timing belt fractured and the engine needed to be replaced. The manufacturer was made aware of the failure, but did not offer any assistance. The vehicle was not repaired. The failure mileage was approximately 163,000.

Filed Incident EngineNHTSA 10955343
Airbags1 injury

The air bag went off while my wife was reaching for her seat belt and scrapped and burned her arm. It sounded like a gun going off. I rushed her home and took care of her wounds

Filed Incident Air bagsNHTSA 10945179
Body, doors & structure

Tl* the contact owns a 2004 kia optima. The contact heard an abnormal loud sound from the vehicle without warning. The vehicle was taken to an independent dealer where it was diagnosed that the frame failed. The vehicle was serviced per an unknown recall; however, the remedy failed to repair the vehicle. The manufacturer was not made aware of the failure. The failure mileage was 178,000.

Filed Incident StructureNHTSA 10943813
Body, doors & structure

Tl* the contact owns a 2004 kia optima. The contact stated that the driver's side door failed to unlock. The contact was able to gain access after several attempts. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 101,000.

Filed Incident Structure · Latches / locks / linkagesNHTSA 10934627
Other & unknown

Driver's door locking system will not unlock, all others do. The door locks itself immediately as you try to unlock either with the key (outside) or pressing the central lock button (when inside). This would be a serious problem if the car was involved in an accident and/or fire was an issue. Right now it is inconvenient to climb over the center console. I see this is not the first complaint on this subject and the problem seems endemic to this car. The problem started intermittently from september 2016 and now is permanent as of november 30.

Filed Incident Unknown or otherNHTSA 10930021
Airbags

Air bag light on dashboard stays on, started two days a go.

Filed Incident Air bagsNHTSA 10920049
Body, doors & structure

Passenger and driver door locks will not unlock 85% of the time, preventing normal entry to / exit from the vehicle. Multiple attempts using the key in the door latch are required to gain entry the other 15% of the time. This is a huge safety issue in case of crash, fire, or carjacking. Internet research shows this to be a common issue around 100k miles. This should be a recall event...

Filed Incident StructureNHTSA 10913613
AirbagsSeats & seat beltsDriver assistance

My air bag light comes on there's no wires disconnected under the seat and my seat belts do not retract well also my door locks are getting stuck in lock mode and my engine comes on and then goes off.After awhile.When in park

Filed Incident Air bags · Seat belts · Electronic stability control (ESC)NHTSA 10903189
Electrical system

On several occasions, when manually unlocking the power door locks, they will immediately lock again and will go into a loop of unlock-relock, whether using the manual door lock or the power lock switch (the relay clicks but nothing happens when using the switch). This happens about 10% of the time.

Filed Incident Electrical systemNHTSA 10896275
Other & unknown

Drivers door lock will not open from inside at all & only 10%of the time from outside with key. Pulled fuse on actuators & lock continues to malfunction. Can not efficiently get in or out of the car. Have to slide over center to reach passenger door to get out. I am 6'4" so this is a real safety hazard.

Filed Incident Unknown or otherNHTSA 10895808
SteeringAirbagsBrakesCrash1 injury

Tl* the contact owned a 2004 kia optima. While driving at an unknown speed, an abnormal clicking noise emitted from the vehicle. The power steering failed and the wheels shook violently. The brakes failed to stop the vehicle and it crashed into a wall. The air bags deployed and an unknown substance emitted into the contacts eyes. The contact sustained burns to the body and lacerations to both eyes that required medical attention. A police report was filed. The vehicle was towed and deemed destroyed. The manufacturer was not made aware of the failure. The vin and failure mileage were unknown. Updated 09/23/16*lj *tr

Filed Incident Steering · Air bags · Service brakesNHTSA 10895163
Electrical system

Tl* the contact owns a 2004 kia optima. The contact stated that the vehicle locked and unlocked without using the keys, and the alarm activated on its own. The failure prevented the driver from entering or exiting the vehicle. The vehicle was taken to the dealer where it was diagnosed that the anti-theft system failed. The vehicle was repaired; however, the failure recurred. The manufacturer was not notified of the failure. The failure mileage was not available.

Filed Incident Electrical systemNHTSA 10894331
Body, doors & structure

Driver door would not open from inside or out. Power door lock would automatically re-lock all doors when attempting to open or unlock with key or inside lock lever. Had to crawl over console to get in or out when finally able to get passenger front door to open. Finally able to get door open by holding key cylinder in unlock position and forcing handle to open. Unhooked door lock actuator. As long as locked or unlocked door with key only, door would open. If locked door with inside lock lever, door would not open again. Mechanic replacing the driver front door latch assembly repaired vehicle. Very dangerous situation if in accident or vehicle fire.

Filed Incident StructureNHTSA 10893697

Kia Optima: every year compared

YearComplaintsRecallsCrashesFiresTop problemGrade
20081443204AirbagsC
20071672115AirbagsB
2006155231AirbagsB
2005144071Body, doors & structureB
2004225183Body, doors & structureC
2003144282Body, doors & structureB
20021103165Body, doors & structureB
20011433150Body, doors & structureB
All Optima years

2004 Kia Optima vs rivals

More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.

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Questions about the 2004 Kia Optima

Does the 2004 Kia Optima have any recalls?

Yes - NHTSA lists 1 recall for the 2004 Kia Optima: front (May 2009). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.

What are the most common problems with the 2004 Kia Optima?

By the complaints owners filed with NHTSA, the most common problem areas are the body, doors & structure (115), electrical system (45), airbags (26).

How many complaints has the 2004 Kia Optima had?

225 complaints have been filed with NHTSA, the first on December 9, 2003 and the latest on February 11, 2025. Of these, 8 describe a crash and 3 a fire, and together they report 8 injuries and 0 deaths.

Is the 2004 Kia Optima a reliable vehicle?

Its Safety Index is 53 out of 100 (grade C: about as many problems as a typical Kia Optima year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.

Which Kia Optima years have the most complaints?

2013 (1,388), 2015 (1,011), 2012 (923). See every Kia Optima year compared.

What should I do if my 2004 Kia Optima has a problem?

If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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