Your vehicle report
2018 Kia Niro
The problems owners report. The recalls to check. The evidence behind each.
Your vehicle at a glance
Complaint patterns and official recall records, kept distinct.
- Owner complaints
- 60
- Received Jan 2018 to Sep 2026
Owner reports
Most reported problems
- 1Engine stalls and loses power while driving5 complaints · 8.3% of this vehicle’s complaints
- 2Automatic transmission shifts unexpectedly or slips4 complaints · 6.7% of this vehicle’s complaints
- 3Rear door latch fails to open or close3 complaints · 5.0% of this vehicle’s complaints
Official NHTSA records
Recalls to check
- Recall #23V534000Kia America, Inc. (Kia) is recalling certain 2017-2022 Niro and 2018-2022 Niro Plug-in Hybrid vehicles. Fluid may leak into the printed circuit board inside the hydraulic clutch actuator, which can result in an engine compartment fire.
- Recall #22V836000Kia Motors America (Kia) is recalling certain 2017-2018 Kia Niro hybrid electric vehicles previously recalled under recall 18V-666. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance, which can overheat the rear seats.
BrakeNews signals
Flagged complaint patterns
Unusual complaint patterns with no matched recall yet. A flag does not mean a recall will happen.
No problems currently meet BrakeNews’s flagging criteria. This is not a safety rating.
How flags are identifiedComplaint counts reflect reports submitted to NHTSA, not failure rates or a reliability ranking. Reported in these complaints: 5 crashes, 0 fires, 4 people injured, 0 deaths.
Explore by system
Where do owners report problems?
Choose an area on the car or a system below to explore the reported problems.
Illustrative only; not this vehicle’s exact design. Areas represent complaint categories, not confirmed defective parts.
Showing all 5 listed problems by system.
Engine & powertrain
Brakes
Electrical & lights
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Airbags, belts & seats
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Steering, suspension & tires
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Body, doors & glass
Driver assistance
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Other
No problems in this category meet this page’s listing criteria. This does not establish that the system is free of problems.
Complaint history
When NHTSA received these reports. Changes in reporting alone do not establish a change in failure rates.
Show as a table
| Year | Complaints |
|---|---|
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 0 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 14 |
| 2024 | 13 |
| 2025 | 6 |
| 2026 (to Oct 2026) | 13 |
| Total | 60 |
Problems owners report
Listed groups have at least 3 complaints. The page includes the 20 largest groups plus any additional flagged groups; some complaints are not assigned to a group.
| Problem | Complaints | Share | Share ratio | Status |
|---|---|---|---|---|
| Engine stalls and loses power while driving | 5 | 8.3% | – | |
| Automatic transmission shifts unexpectedly or slips | 4 | 6.7% | – | |
| Rear door latch fails to open or close | 3 | 5.0% | – | |
| Head gasket leaks coolant into engine | 3 | 5.0% | – | |
| Automatic emergency braking applies without reason | 3 | 5.0% | – |
AI groups complaints by meaning; the groups are approximate. Share ratio compares the problem’s share of this vehicle’s complaints with its share on other vehicles over the last 24 months (shown from 3 recent complaints). A 2× ratio means twice the complaint share, not twice the failure risk. Flags mark unusual shares or recent surges after an AI review of the complaint content. “First signal” does not mean the pattern has persisted continuously.How recall estimates are calculated.
Recalls
NHTSA recall #23V534000July 31, 2023121,411 vehicles affected
power train: automatic transmission: internal: clutches/bands: actuators/solenoids
Kia America, Inc. (Kia) is recalling certain 2017-2022 Niro and 2018-2022 Niro Plug-in Hybrid vehicles. Fluid may leak into the printed circuit board inside the hydraulic clutch actuator, which can result in an engine compartment fire.
A fire increases the risk of injury.
Remedy
Dealers will inspect and replace the hydraulic clutch actuator as necessary and install a new fuse, free of charge. Owner notification letters were mailed December 29, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC276.
NHTSA recall #22V836000November 11, 202227,030 vehicles affected
hybrid propulsion system
Kia Motors America (Kia) is recalling certain 2017-2018 Kia Niro hybrid electric vehicles previously recalled under recall 18V-666. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance, which can overheat the rear seats.
Overheated rear seats increase the risk of a fire.
Remedy
Dealers will inspect the PRA and replace either the PRA or the Main Relay, as necessary, free of charge. Owner notification letters were mailed January 9, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC256. This recall supersedes NHTSA recall number 18V-666. Vehicles already repaired under the previous recall will need to have the new remedy completed.
NHTSA recall #18V666000September 25, 201827,030 vehicles affected
hybrid propulsion system
Kia Motors America (Kia) is recalling certain 2017-2018 Kia Niro hybrid electric vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.
The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
Remedy
Kia will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced. These repairs will be performed free of charge. The recall began November 23, 2018. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC168.
Other model years
About this data
NHTSA complaints and recalls through October 2026. Complaints are counted once each, however many components they name. Original complaints are on NHTSA's page for the 2018 Kia Niro.
Problem groups are formed by AI and may be approximate. BrakeNews flags unusual complaint patterns; they are not official defect findings. Investigation reports are written and checked by AI, with no human review. Owner reports do not establish that a defect exists.
Read the methodology and track record · Check current recalls by VIN