Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 164 complaints with NHTSA about the 2021 Kia K5, and it carries 6 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Electrical system | 19 | 12% |
| Unknown or other | 18 | 11% |
| Fuel/propulsion system | 18 | 11% |
| Fuel system | 8 | 5% |
| Power train | 8 | 5% |
| Engine | 7 | 4% |
| Electrical system | 6 | 4% |
| Structure | 5 | 3% |
| Air bags | 5 | 3% |
| Service brakes | 4 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
The panoramic glass of the sunroof exploded out while driving on the freeway. A large piece of the glass exploded outwards and could not be retrieved. It was not damaged by external impact as other cars were not close en
NHTSA complaint: Unknown or other
The contact owned a 2021 Kia K5. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The failure was a recurring failure. The message "Not Emissions Ready" was displayed. The vehicle was t
NHTSA complaint: Engine and engine cooling
I am reporting a violation of the National Traffic and Motor Vehicle Safety Act by Ball Kia (National City, CA). The dealer tried to deny service for recall 25V794000 (SC356) for a melted, leaking fuel tank, fabricated a
NHTSA complaint: Fuel/propulsion system
The contact owns a 2021 Kia K5. The contact received notification of NHTSA Campaign Number: 25V794000 (Fuel System, Gasoline). The vehicle was taken to a dealer for the recall repair. The contact was struggling to receiv
NHTSA complaint: Fuel system
Recall NNK post-repair failure. Dealership: Kia of Valdosta (RO# XXX). After ECU update NNK-02-0118, my K5 suffered a severe loss of acceleration and torque. The car cannot safely merge on highways. The dealer’s own live
NHTSA complaint: Power train
The contact owns a 2021 Kia K5. The contact stated that while driving approximately 55 MPH, the fuel gauge suddenly went from one-half tank to empty. The fuel level displayed 120 miles to empty. The contact attempted to
NHTSA complaint: Fuel system
The contact owns a 2021 Kia K5. The contact stated that there were failures with the spark plugs. While driving at an undisclosed speed, the vehicle shuddered, and the engine sputtered. The contact stated that fuel spewe
NHTSA complaint: Fuel system
The contact owns a 2021 Kia K5. The contact stated that while driving approximately 55-60 MPH, the fuel tank expanded. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was det
NHTSA complaint: Fuel system
NHTSA lists 6 recall campaigns for the 2021 Kia K5. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the presence of a child restraint system in the front passenger seat. As such, these vehicles fail to comply with the requirements of
Risk: In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can increase the risk of injury to the child.
Fix: Kia will notify owners, and dealers will replace the OCS/ODS unit, free of charge. The recall began March 18, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this
Kia Motor America (Kia) is recalling certain 2021 Sorento and 2021-2022 K5 vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.
Risk: A fuel leak increases the risk of a fire.
Fix: Dealers will inspect and tighten, or replace the fuel pipe as necessary, free of charge. Owner notification letters were mailed July 21, 2021. Owners may contact Kia customer service at 1-800-333-45
Kia Motors America (Kia) is recalling certain 2021-2022 K5 vehicles equipped with 2.5L T-GDI engines. The Rack-Mounted Motor Driven Power Steering (R-MDPS) system lacks the ability to diagnose communication faults. If a communication fault occurs while driving around a curve with Lane Following As
Risk: A sudden increase in steering effort can increase the risk of a crash.
Fix: Dealers will update the R-MDPS software, free of charge. Owner notification letters are were mailed June 24, 2021. Owner may contact Kia customer service at 1-800-333-4542. Kia's number for this re
Kia Motors, Inc. (Kia) is recalling certain 2021-2022 Sorento and 2021-2023 K5 vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.
Risk: Loss of drive power increases the risk of a crash.
Fix: Dealers will inspect and replace the transmission, as necessary. Dealers will also update the transmission control unit software. All repairs will be performed free of charge. Owner notification le
| Reliability raw | 78 | good |
|---|---|---|
| Longevity est. | 74 | good |
| Maintenance | 80 | excellent |
| Depreciation | 86 | excellent |
| Performance | 47 | below average |
| Efficiency | 54 | average |
| Safety | 93 | excellent |
Percentile ranks against other midsize & large cars in the catalog.
What stands behind each score for this car:
Owners have filed 164 complaints with NHTSA for this model-year, and electrical system is the most reported area with 19 of them (12%). There are 6 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 78/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 74/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2021 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 75/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.