Head-to-head reliability
KIA Optima vs Honda Accord
How the KIA Optima and Honda Accord compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
KIA Optima vs Honda Accord: Over 10 years, the Optima had 6,092 complaints and 41 recalls, while the Accord had 4,524 complaints and 38 recalls. The Optima's engine issues (3,081 complaints) are more frequent than the Accord's (1,006). Source: NHTSA owner complaints.
The picture
Is the KIA Optima or Honda Accord more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
KIA Optima
The Kia Optima is a mid-size sedan that has been sold for many years, but its reliability record is concerning. Over a 10-year period, owners filed 6,092 complaints, with engine problems dominating at 3,081 complaints. Many owners report sudden oil loss, engine failure, and loss of power, often despite regular maintenance. With 41 recalls and 9 deaths reported, living with an Optima means staying vigilant about engine health and recall repairs.
Honda Accord
The Honda Accord is a popular mid-size sedan with a generally better reliability reputation, but it still has its share of issues. Over 10 years, it accumulated 4,524 complaints, with engine and electrical problems being the most common. Owners report issues like loss of power, electronic steering and braking failures, and forward collision avoidance malfunctions. With 38 recalls and 3 deaths, the Accord has fewer complaints per year than the Optima, but some problems can be serious.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | KIA Optima | Honda Accord |
|---|---|---|
| Total complaintsAll model years combined | 6,092 | 4,524 Better |
| Safety recallsFederal recall campaigns | 41 | 38 Better |
| Crash reportsCrash-related complaints | 214 | 162 Better |
| Complaints per yearAveraged across model years | 609.2 | 452.4 Better |
| Reported injuriesTied to owner complaints | 191 | 146 Better |
| Reported deathsTied to owner complaints | 9 | 3 Better |
Source: NHTSA owner complaints & recall records.
What actually goes wrong
The problems owners report
The most-complained-about systems on each vehicle — what fails, and what owners say in their own words.
KIA Optima
- 01ENGINE3,081
- 02UNKNOWN OR OTHER788
- 03ELECTRICAL SYSTEM723
- 04STEERING720
- 05SERVICE BRAKES455
Owners frequently report sudden oil loss without visible leaks, leading to engine failure and loss of power. Complaints mention check engine lights and difficulty accelerating, often despite regular oil changes. This is critical because engine failure can strand you and lead to costly repairs.
Reports include excessive oil consumption linked to electrical issues, and transmission hard-shifting after software updates. These problems can affect drivability and may require repeated dealer visits.
With 720 complaints, steering issues are notable, though specific symptoms are not detailed in the sample. Buyers should be aware that steering problems can compromise control and safety.
455 complaints about brakes suggest potential issues with braking performance. While not detailed in the samples, brake problems are a serious safety concern that should be inspected.
“Out of town July 12th 2025 my 2020 Kia Optima engine started having problems. I tried to get to my hotel but it was obvious I was not going to make it. I pulled into the nearest station and was told my car had no oil. There were no signs of leaking oil and no…”
“I have kept up on regular oil changes and maintenance on my Kia which I bought new 5 years ago. My issues started when my car's orange check engine light came on, I experienced loss of power such as difficulty accelerating even at low speeds, especially up hi…”
Honda Accord
- 01ENGINE1,006
- 02ELECTRICAL SYSTEM895
- 03FORWARD COLLISION AVOIDANCE837
- 04UNKNOWN OR OTHER746
- 05FUEL/PROPULSION SYSTEM602
Owners report rattling noises during acceleration, rough transitions between EV and gas modes, and sudden loss of power with multiple warning lights. These issues can indicate hybrid system problems and may be difficult to diagnose.
Complaints include simultaneous failure of electronic power steering and braking at highway speeds, and TPMS warnings leading to tire failure. Such failures can be extremely dangerous and require immediate attention.
With 837 complaints, owners report unexpected braking or failure to brake, sometimes under adaptive cruise control. This can increase the risk of collisions if the system malfunctions.
602 complaints involve fuel or propulsion issues, such as sulfur odors and potential fuel pump problems. These can affect performance and may require costly repairs.
“Vehicle drove normally in the morning commute. In the afternoon commute it started normally and as i approached highway speeds the alarms started showing up. the Brake, hill descent system, abs, critical failure. the vehicle started losing speed and could not…”
“Vehicle makes rattling noises while accelerating similar to a diesel engine also rough transitions between EV mode and Gas mode also when you press the charge button the engine makes a very noticeable jerk once it’s on ,Honda does not want to fix my issue and…”
Official recalls
Safety recalls on record
Federal recall campaigns — the defect, the risk, and the fix. Confirm any open recall was completed before you buy.
KIA Optima — 41 recalls
The defect: Kia Motors America (Kia) is recalling certain 2019 Optima vehicles equipped with Gamma 1.6L Turbo-GDI or Theta II 2.0L Turbo-GDI engines. A software error in the Forward Collision-Avoidance Assist (FCA) system may cause the braking assist function to not engage when a stationary vehicle is detected.
The risk: Improper intervention of the Forward Collision-Avoidance Assist can increase the risk of a crash.
The fix: Kia will notify owners, and dealers will update the FCA software, free of charge. The recall began August 27, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC179.
The defect: Kia Motors America (Kia) is recalling certain 2017-2018 Kia Optima hybrid vehicles. These vehicles are equipped with a Voltage Protection Device (VPD), designed to protect the high voltage battery module, that may activate inadvertently.
The risk: If the VPD activates while the vehicle is being operated in Electric Vehicle (EV) mode, there may be a loss of power, increasing the risk of a crash.
The fix: Kia will notify owners, and dealers will remove the VPD switch and install two newly designed Battery Management Systems (BMS) that contain Overvoltage Protection Devices (OPDs), free of charge. The recall is expected to begin May 2018. Ow…
The defect: Kia America, Inc. (Kia) is recalling certain 2016-2017 Rio, 2016-2018 Optima, 2017-2018 Optima Hybrid and Optima Plug-in Hybrid vehicles. The trunk latch base may crack, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Moto…
The risk: A person inside the trunk compartment may become trapped, increasing their risk of injury.
The fix: Dealers will replace the trunk latch base subassembly, free of charge. Owner notification letters were mailed October 19, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC278.
The defect: Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pi…
The risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
The fix: Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC172.
Honda Accord — 38 recalls
The defect: Honda (American Honda Motor Co.) is recalling certain 2023-2025 Honda Accord Hybrid vehicles. Due to a software error, the integrated control module (ICM) central processing unit (CPU) may reset while driving, causing a loss of drive power.
The risk: A loss of drive power increases the risk of a crash or injury.
The fix: Dealers will reprogram the ICM CPU software, free of charge. Owner notification letters were mailed January 6, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's number for this recall is TN2. Vehicle Identificati…
The defect: Honda (American Honda Motor Co.) is recalling certain 2023-2026 CR-V Hybrid, Accord Hybrid, and 2025-2026 CR-V Fuel Cell EV vehicles. When using the tire repair kit, pressure may build within the sealant bottle, causing the bottle cap to detach.
The risk: A detached bottle cap can become a projectile and strike the user or others nearby, increasing the risk of injury.
The fix: Dealers will replace the tire repair kit nozzle or sealant bottle, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipat…
The defect: Honda (American Honda Motor Co.) is recalling certain 2021 Accord Sedan, Accord Hybrid, CR-V, Ridgeline, 2022 Insight and CR-V Hybrid vehicles. The automatic locking retractor on the second-row center seat belt assembly may deactivate improperly, which can result in an unsecured child restraint sys…
The risk: An unsecured child restraint system can increase the risk of injury during a crash.
The fix: Dealers will replace the second-row center seat belt assembly, free of charge. Owner notification letters were mailed January 14, 2022. Owners may contact Honda customer service at 1-888-234-2138.
The defect: Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura R…
The risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.
The fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls ar…
Buyer analysis
KIA Optima or Honda Accord: which should you buy?
The Honda Accord has fewer complaints per year (452.4) compared to the Kia Optima (609.2), suggesting better overall reliability. However, the Accord still has serious issues like electronic steering and braking failures. In practice, the Optima may require more frequent repairs, especially for engine problems, while the Accord's issues, though less frequent, can be equally severe.
Key differences
- The Kia Optima has 3,081 engine complaints, often about sudden oil loss and engine failure, while the Honda Accord has 1,006 engine complaints, with issues like rattling and power loss.
- Honda Accord owners report electronic steering and braking failures at highway speeds, a severe safety concern not highlighted in Optima complaints.
- The Optima has more crash-related complaints (214 vs 162) and injuries (191 vs 146), but the Accord has fewer deaths (3 vs 9).
- Both have recalls for fuel systems and electrical components, but the Optima's recalls include hybrid propulsion and forward collision avoidance, while the Accord's include hybrid management software and fuel pumps.
- Check for excessive oil consumption: look for low oil levels, blue exhaust smoke, or frequent oil top-ups, as many owners report sudden oil loss without leaks.
- Listen for transmission hard-shifting, especially after software updates, and test drive at various speeds to detect any hesitation or jerking.
- Test the electronic power steering and braking systems at highway speeds if possible; any warning lights or loss of assist should be a deal-breaker.
- Check for forward collision avoidance malfunctions: ensure the system does not randomly brake or fail to alert, and verify any recalls have been addressed.
Before you buy
- Obtain a full vehicle history report and confirm all recalls have been repaired, especially for engine, electrical, and fuel system issues.
- Have a trusted mechanic perform a pre-purchase inspection focusing on engine compression, oil consumption, and transmission operation.
- For the Kia Optima, check for any signs of engine sludge or oil leaks, and ask about oil change records.
- For the Honda Accord, test all electronic safety systems, including adaptive cruise control and forward collision warning, during a test drive.
- Verify the hybrid system (if equipped) for smooth transitions and check for any stored trouble codes related to the hybrid battery or power control unit.
Year by year
Which model years to avoid
Complaints per model year for both vehicles — lower is better. The spikes are the years to scrutinize.
| Year | KIA Optima | Honda Accord |
|---|---|---|
| 2020 | 148 | 362 |
| 2019 | 210 | 691 |
| 2018 | 232 | 1884 |
| 2017 | 256 | 537 |
Check the actual car
Comparing models is smart. Checking the VIN is essential.
Brand averages tell you the trend. A VIN check tells you what's wrong with the specific KIA Optima or Honda Accord in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- KIA Optima vs Honda Accord
- KIA Optima total complaints
- 6,092
- Honda Accord total complaints
- 4,524
- KIA Optima total recalls
- 41
- Honda Accord total recalls
- 38
- KIA Optima avg complaints/year
- 609.2
- Honda Accord avg complaints/year
- 452.4
- More reliable overall
- Honda Accord
- KIA Optima top complaint area
- ENGINE
- Honda Accord top complaint area
- ENGINE