The front subframe is dangerously rusted. The same way the other optima were recalled for.
The worst 2006 Kia Optima problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Airbags46
- Locks27
- Electrical23
- Engine16
- Lights16
- Transmission14
- Visibility13
- Body12
- Fuel system9
- Acceleration7
- Suspension6
- Tires5
- Seats4
- Steering2
- Seat belts1
- Wheels1
Specific symptoms reported on the 2006 Kia Optima
Airbag light 35Door locks 22Headlights 14Stalling 7Key fob 6
Recalls 2
Air bags: frontal
- What is wrong
- Kia motors america, inc. (kia) is recalling certain model year 2006-2008 kia optima vehicles manufactured from september 29, 2005, through january 29, 2008, and model year 2007 and 2008 kia rondo vehicles manufactured from september 13, 2006, through march 21, 2008. The clock spring contact assembly for the driver's side air bag supplemental restraint system (SRS) may become damaged through usage over time. If the clock spring contact assembly becomes damaged, the driver's air bag electrical circuit will experience a high resistance condition potentially causing the driver's air bag to not deploy.
- Risk
- If the clock spring develops high resistance, in the event of a crash, the drivers air bag will not deploy and will not be able to properly protect the driver, increasing the risk of injuries.
- Remedy
- Kia will notify owners, and dealers will replace the vehicle's air bag clock spring contact assembly, free of charge. The safety recall began on july 11, 2012. Owners may contact kia customer assistance center at 1‑800‑333‑4542.
Recall number 12V014000 · Recall details
Power train: automatic transmission: lever and linkage: column shift
- What is wrong
- Kia is recalling certain model year 2006-2008 optima vehicles manufactured from september 29, 2005, through june 13, 2007. There is a possibility that the shift cable may have been installed incorrectly, causing tension in the cable. If present, this condition could cause the cable to detach from the shifter assembly's dowel pin preventing the transmission from being shifted. The shift lever can then be moved into the park (p) position while the vehicle's transmission is still in the last used gear before detachment.
- Risk
- If the driver leaves the vehicle without engaging the parking brake, there is a possibility that the vehicle can roll injure a person in its path or cause a crash.
- Remedy
- Dealers will inspect the shift cable and reinstall if necessary free of charge. The safety recall began on march 23, 2011. Owner may contact kia at 1‑800‑333‑4542.
Recall number 11V153000 · Recall details
See all 2 recalls for the 2006 Kia Optima
Defect investigations
Loss of Motive Power
the federal safety agency received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitionersâ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODIâs evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to the federal safety agency which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. Â There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in the federal safety agency's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, the federal safety agency does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing the federal safety agencyâs reasons for denial of the petition will be published. The reference numbers for the complaints to the federal safety agency cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to
DP22003
Throttle control system vulnerabilities
The Office of Defects Investigation (ODI) of the federal safety agency received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can be reviewed at under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. the federal safety agency's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in the federal safety agency's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, the federal safety agency does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing the federal safety agency?s reasons for denial of the petition will be published.
DP21003
Transmission Shift Cable Detachment
During manufacture the automatic transmission shift cables in certain subject vehicles were installed incorrectly causing extra tension on the cable.This condition can cause the shift cable to detach from the gear shifter assembly's dowel pin preventing the transmission from being shifted.The shift lever can be moved into the Park (P) position while the vehicle transmission is still in the last used gear before detachment.If this were to occur, and if the driver leaves the vehicle without engaging the parking brake, the vehicle may inadvertently roll away thus creating the risk of a crash.Kia is conducting a safety recall (11V‑153) to correct the subject problem in approximately 70,115 model year (MY) 2006 through 2008 Kia Optima vehicles produced from 9/29/2005 to 6/13/2007.Kia has stated that the early MY 2006 Optima vehicles built before 9/29/2005 had different automatic transmission shift cables and shift levers than the subsequent MY 2006 through early MY 2008 Optima vehicles built up to 6/13/2007.Beginning 6/14/2007, Kia changed the assembly process for the shift cables to ensure correct installation.As for the recall remedy, Kia dealers will inspect the shift cables for correct installation, and re-install them, if necessary.For more details on the recall, see the federal safety agency recall 11V‑153.This investigation is closed.
PE10046
Technical service bulletins for the 2006 Kia Optima 37
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Transmission fluid application guide
- Transmission fluid application guide
- Information for headlamp condensation and moisture
- Technical service bulletin closed
- - Transmission fluid application guide
- Pitstop - engine component re-use guidelines
- Mandatory replacement of locking/security hardware
- Mandatory replacement of locking/security hardware
- WTY002 (revision #1)
- Owner letter: WTY002 optima
2006 Kia Optima fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.4L 4‑cyl | FWD | 19-21 | 27-31 | 22-25 |
| 2.7L 6‑cyl | FWD | 18-20 | 25-28 | 21-23 |
What 2006 Kia Optima owners say
Most recent owner complaints, unedited.
I have a 2006.5 kia optima. I am experiencing the same problem with the brake light switch sticking as other kias currently under recall. My brake lights are always on. Am I out of luck on this one?
Hood released while in motion, folded back over windshield and roof top totally blinding driver while in motion. Vehicle was in motion, traveling south on nc hwy 16 at a rate of 50 MPH, two lane road. Hood released and flew up, no known cause or effect. Hood release and/or safety latch obviously released without cause or warning.
Car will not always start. Sometimes I have to wait 24 hours and pick up the car wherever I had to leave it cause it wouldn't start. When trying to start there's a clicking sound and all panel light start to flash. Replaced alternator and battery, still not fixed. Seen a lot of reviews complaining about the exact some problem.
Tl* the contact owns a 2006 kia optima. While reversing out of the driveway, the vehicle failed to reverse and the instrument panel indicated that the shifter was in park. The contact stated that the gear shifter would shift out of park into reverse. There were no warning indicators illuminated. The contact called kia of lynchburg (3400 old forest rd, lynchburg, va 24501, (434) 847-3292) and was informed that the transmission could be the cause of the failure. The vehicle was not diagnosed or repaired. The contact called the manufacturer and was informed that the vehicle was not included in a recall. The approximate failure mileage was 171,000.
Oh rear lower swing arm supporting the spring broke letting the spring come out of position and letting the wheel tilt as if flat. The lower arm had rusted in two allowing this to happen.
I have an 06 optima (06.5/ ms) 2.4 engine but the problem im having juging from kia internet forums is spread acros meney years and models it is an intermitant engine stall it can happen at any time ive had it happen at 65mph on interstate this is followed by a series of start stall then it will run fine for a while ive had a complete wire harness check reaced several sensors and other parts nothing has cured the problem it should be recalled and repaired by kia before some one gets hurt not after.this is a totally random happening
Instrument panel is not working no speed no temp no RPM no fuel. Checked all fuses.
Front passenger side door will mot open from the inside or outside causing you to be locked in the vehicle. Also when you try to open the door from inside the vehicle automatically locks the car. This is a safety hazard that needs to be address.
Driver's side door will not open from either the inside or the outside. This is the second time that this has occurred but I was able to finally get the door open before and disengaged the actuator. As long as no one locked the door, it worked fine, however; mother recently had work done on her car and when they returned it, they locked the door. I've spent numerous hours trying to get the door open so that I can replace the mechanism and actuator but have been unsuccessful. After looking online, this seem to be an ongoing issue with kia, this is a dangerous condition and needs to be looked into. Not sure how little elderly people are expected to safely get out of their vehicles in case of an emergency. (this happened while stationary on a flat, paved road).
Compare the 2006 Kia Optima
Optima vs Honda AccordOptima vs Ford FusionOptima vs Chevrolet MalibuOptima vs Toyota CamryOptima vs Hyundai SonataOptima vs Nissan AltimaOptima vs Volkswagen PassatOptima vs Subaru Legacy
Other model years
20012002200320042005200620072008200920102011201220132014201520162017201820192020
Questions about the 2006 Kia Optima
Is the 2006 Kia Optima reliable?
Owners have filed 155 complaints about the 2006 Kia Optima, fewer than a typical Optima model year.
What is the 2006 Kia Optima year score?
The 2006 Kia Optima scores 81 out of 100 (good). The score compares it with the other model years of the Kia Optima: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2006 Kia Optima?
Airbags, with 46 complaints, typically around 50,000 miles. Next is locks (27).
How many recalls does the 2006 Kia Optima have?
2 recalls, covering air bags and power train.
What gas mileage does the 2006 Kia Optima get?
Official estimates for the 2006 Kia Optima range from 21 to 25 mpg combined. The most efficient version (2.4L 4-cyl, FWD) gets 19-21 city and 27-31 highway.
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