2021 KIA K900: common problems
The maker issued 12 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 12
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 8 |
| Engine and cooling | 0 | 0 | 1 |
| Equipment | 0 | 0 | 1 |
| Exterior lighting | 0 | 0 | 1 |
| Forward collision avoidance | 0 | 0 | 1 |
| Seats | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
| Visibility | 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.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- TECHNICAL SERVICE BULLETIN
INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater…
- TECHNICAL SERVICE BULLETIN
AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - 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
SERVICE REMINDER SETTING RESET PROCEDURE - This bulletin provides the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster. The KDS…
- PITSTOP
REAR OCCUPANT ALERT (ROA) W/REAR DOOR LOGIC - 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…
- 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…
- PITSTOP
FRONT RADAR SENSOR MOUNTING INSPECTION (PS704) - This pitstop provides information regarding front radar sensor alignment on 2014MY and later vehicles that may exhibit a warning light ON related to radar sensor…
- PIT STOP
LOG FILE COLLECTION FOR AVN 5.0/W AND DISPLAY AUDIO 2.0 - 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
SERVICE REMINDER SETTING RESET 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 bulletin provides…
- PITSTOP
CORRECT PROCEDURE FOR RAISING WINDSHIELD WIPERS - 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. When servicing…
- TECHNICAL SERVICE BULLETIN
SERVICE REMINDER SETTING RESET PROCEDURE - This bulletin provides the procedure to turn OFF the service reminder lamp, at the first service interval reminder alert that will display on the instrument cluster.
- PITSTOP - BRAKE CALIPER LEAK INSPECTION - This PITSTOP provides information related to a brake caliper…
PITSTOP - BRAKE CALIPER LEAK INSPECTION - This PITSTOP provides information related to a brake caliper fluid/oil substance found on some Kia vehicles, due to possible excess assembly oil applied during assembly.
- TECHNICAL SERVICE BULLETIN
MAINTENANCE REMINDER FEATURE - This bulletin provides information on setting the "Service Interval Reminder" feature available on most Kia vehicles. If the service interval reminder is set, the customer will be…
Other years of this model
Questions and answers
What are the most common problems with the 2021 KIA K900?
There are no owner complaints in the NHTSA data for this year; the data comes from 12 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 KIA K900?
NHTSA lists 12 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 2021 KIA K900 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 2021 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.