Own a Kia Niro in the Phoenix area? EZ Swap LLC repairs and maintains the Kia Niro for model years 2017 to 2027. Our shop at 9050 N 9th St handles everything from routine service to diagnostics and major repairs.
To help Niro owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 530 owner complaints on file for the Niro and 6 safety recall campaigns. The most-reported problem areas are electrical system (139), power train (133), engine (100).
Most-Reported Kia Niro Problems
These problem areas come up most often in NHTSA owner complaints for the Niro (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Electrical System | 139 | 26% | |
| Power Train | 133 | 25% | |
| Engine | 100 | 18% | |
| Service Brakes | 52 | 9% | |
| Fuel/Propulsion System | 44 | 8% | |
| Vehicle Speed Control | 31 | 5% | |
| Forward Collision Avoidance | 28 | 5% | |
| Air Bags | 22 | 4% |
Electrical System
139 of the 530 complaints (26%) mention the electrical system. Electrical problems are made worse by desert heat, which ages batteries, cables and connectors. We test the battery, starter and charging system and trace faults to the actual part. See our battery replacement and starter & alternator repair pages.
Power Train
133 of the 530 complaints (25%) mention the powertrain. Powertrain complaints can range from rough shifting to loss of drive. We road test, scan for stored codes and inspect fluids before recommending any repair. See our auto repair page.
Engine
100 of the 530 complaints (18%) mention the engine and cooling system. Engine and cooling complaints are best caught early in Phoenix, where heat pushes cooling systems and engine oil to their limits. We diagnose warning lights and check coolant, hoses and oil condition. See our check engine light diagnostics and oil change & maintenance pages.
Kia Niro Complaints by Model Year
The Niro model years with the most NHTSA complaints on file are 2017, 2019, 2022. Older model years have had more time to collect reports, so use this table as a guide for what to inspect, not as a verdict on any one vehicle.
| Model year | Complaints on file | |
|---|---|---|
| 2017 | 101 | |
| 2018 | 73 | |
| 2019 | 101 | |
| 2020 | 63 | |
| 2021 | 12 | |
| 2022 | 74 | |
| 2023 | 65 | |
| 2024 | 19 | |
| 2025 | 20 | |
| 2026 | 2 |
Most Common Kia Niro Check Engine Codes
Owners often put the exact trouble code in their NHTSA complaint. These are the codes cited most often for the Niro. The most-cited is P17ED (manufacturer-specific powertrain code), mentioned in 3 complaints. Counts reflect complaints that name a code, not every car on the road.
| Code | What it means | Complaints citing it |
|---|---|---|
| P17ED | Manufacturer-specific powertrain code The meaning of this code varies by make and model, so it needs to be looked up for your vehicle and tested. | 3 |
| P0420 | Catalyst efficiency below threshold (bank 1) Often a worn catalytic converter, but failing oxygen sensors or exhaust leaks can set it too. Can cause an emissions test failure. | 2 |
| P17EE | Manufacturer-specific powertrain code The meaning of this code varies by make and model, so it needs to be looked up for your vehicle and tested. | 2 |
| U1010 | Manufacturer-specific network code The meaning of this code varies by make and model, so it needs to be looked up for your vehicle and tested. | 2 |
| P090B | Powertrain code A scan and test is needed to confirm what this code means for your vehicle. | 2 |
A code is a clue, not a diagnosis. The same code can have several causes, so we test before replacing parts. See our check engine light diagnostics, and read whether it is safe to drive with the check engine light on.
Kia Niro Safety Recalls
NHTSA lists 6 recall campaigns for the Niro in these model years, most often involving power train, electrical system, seats. Recalls are repaired by the manufacturer at no charge to you, but each applies only to certain vehicles. Look up your VIN at nhtsa.gov/recalls.
- 2025 recall, Seats (campaign 25V024000): Kia America, Inc. (Kia) is recalling certain 2023-2025 Niro EV, Plug-in Hybrid (PHEV), and Hybrid vehicles.
- 2024 recall, Power Train (campaign 24V057000): Kia America, Inc. (Kia) is recalling certain 2023-2024 Niro EV and 2023 EV6 vehicles. One of the drive shafts may have been improperly heat-treated, allowing it to break under load and resulting in a loss of drive power.
- 2024 recall, Power Train (campaign 24V271000): Kia America, Inc. (Kia) is recalling certain 2023 Niro EV and 2024 EV9 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power or cause the differential to lock...
- 2023 recall, Power Train (campaign 23V534000): 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.
- 2023 recall, Electrical System (campaign 23V298000): Kia America, Inc. (Kia) is recalling certain 2023 Sportage, Sportage Hybrid, Sportage Plug-in Hybrid, Niro Hybrid, Niro Plug-in Hybrid, Soul, and Telluride vehicles equipped with a digital instrument cluster containing a 4.2" LCD screen.
- 2017 recall, Steering (campaign 17V159000): Kia Motors America (Kia) is recalling certain 2017 Niro vehicles. The affected vehicles may have a damaged Motor Driven Power Steering (MDPS) connector resulting in a loss of electric power steering assistance.
Serious Incident Reports
Of the NHTSA complaints on file for the Niro, 47 involved a crash, 11 involved a fire, 36 reported injuries. These numbers are drawn from self-reported complaints and are not verified findings. If your vehicle has an open recall, get it repaired promptly.
Keeping a Kia Niro Reliable in Phoenix
Arizona heat is the hardest test a Kia will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Niro that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for Niro owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used Kia Niro, a pre-purchase inspection shows what the paperwork does not.
Kia Niro Services at EZ Swap LLC
Get the details on our Phoenix Kia Niro repair service, or choose a service below.
Battery Replacement
Test, replace and protect against Phoenix heat.
Details →Starter & Alternator Repair
Charging and starting system repair.
Details →Auto Repair
All makes and models, from domestic trucks to imports.
Details →Check Engine Light Diagnostics
Scan, test and pinpoint the real cause.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Kia Niro FAQ
What are the most common problems with the Kia Niro?
Based on NHTSA owner complaints, the most-reported problem areas for the Kia Niro are electrical system (139), power train (133), engine (100). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Niro model years have the most complaints?
The Niro model years with the most NHTSA complaints on file are 2017, 2019, 2022. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What are the most common check engine codes on the Kia Niro?
In NHTSA owner complaints for the Kia Niro, the codes cited most often are P17ED (manufacturer-specific powertrain code), P0420 (catalyst efficiency below threshold (bank 1)), P17EE (manufacturer-specific powertrain code). A code points to a system, and testing confirms the actual failed part.
Does the Kia Niro have any safety recalls?
NHTSA lists 6 recall campaigns for the Kia Niro across model years 2017 to 2027. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the Kia Niro in Phoenix?
Yes. EZ Swap LLC repairs and maintains Kia vehicles including the Niro, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used Kia Niro?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my Kia Niro in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More Kia Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.