AI Damage2018 KIA Optima Phev: common problems
The maker issued 25 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 25
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 14 |
| Engine and cooling | 0 | 0 | 5 |
| Steering | 0 | 0 | 5 |
| Equipment | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Visibility | 0 | 0 | 3 |
| Exterior lighting | 0 | 0 | 1 |
| Forward collision avoidance | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Powertrain | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- TECHNICAL SERVICE BULLETIN
PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - 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…
- TECHNICAL SERVICE BULLETIN
SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The…
- This bulletin provides information relating to the correct transmission fluid type and fill quantity…
This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
- SUBSEQUENT REPAIR ACTION
ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (SC218YZ) - This bulletin provides information related to the Technical Service Bulletin previously published (SC218) titled "Engine Inspection/Replacement and KSDS S/W…
- TECHNICAL SERVICE BULLETIN
PARTIAL REPAIR - ELECTRICAL A/C COMPRESSOR - 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…
- TECHNICAL SERVICE BULLETIN
SERVICE ACTION: BMS/OPU/MCU LOGIC IMPROVEMENT (SA411) - 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…
- TECHNICAL SERVICE BULLETIN
MAINTENANCE REMINDER FEATURE - 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…
- TECHNICAL SERVICE BULLETIN
HIGH-VOLTAGE BATTERY ORDERING AND RETURN PROCEDURE - 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…
- PITSTOP
INSTRUMENT CLUSTER REPLACEMENT AND MILEAGE SETTING WITH KDS - 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…
- TECHNICAL SERVICE BULLETIN
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING - This bulletin provides the procedure to replace the small bearing of the Column Motor Driven Power Steering (C-MDPS) unit on the vehicles listed below, which may exhibit an…
- TECHNICAL SERVICE BULLETIN
PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in…
- 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…
NHTSA lists 25 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 KIA Optima Phev?
There are no owner complaints in the NHTSA data for this year; the data comes from 25 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 KIA Optima Phev?
NHTSA lists 25 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 KIA Optima Phev from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.