2021 Kia Niro Safety Report
2021 KIA NIRO Safety Analysis
Safety Decision Cockpit for the 2021 Kia Niro
This page is the hub for deciding what to inspect next on the 2021 Kia Niro. It connects recall campaigns, owner complaint patterns, service bulletins, sibling model years, component issue hubs, and the model buying guide so a shopper or owner can move from a single report into the wider safety graph.
| Signal | Value | What to inspect next |
|---|---|---|
| Recall burden | Moderate (1) | Review campaign numbers, affected components, and dealer remedies below. |
| Owner complaints | Low (7) | Scan complaint narratives for recurring symptoms, mileage, crashes, fires, injuries, and dates. |
| Crash and fire reports | 1 | Treat any crash, fire, injury, or fatality-linked pattern as a priority pre-purchase inspection item. |
| Primary component hub | Power Train,Engine | Compare power train,engine issues across vehicles. |
| Cleaner nearby model year | 2024 | Compare against the 2024 Kia Niro with 6 complaints and 1 recalls. |
| Riskier nearby model year | 2023 | Check the 2023 Kia Niro before buying across this generation. |
Kia Niro Year-by-Year Comparison
The safest purchase decision usually comes from comparing neighboring model years, not reading a single page in isolation. The table below uses only validated Kia Niro years already present in the cleaned NHTSA dataset, so each comparison links to a real vehicle safety report rather than a generated combination.
| Model Year | Complaints | Recalls | Use case |
|---|---|---|---|
| 2022 Kia Niro | 22 | 1 | Inspect as a potentially higher-complaint year. |
| 2023 Kia Niro | 36 | 2 | Inspect as a potentially higher-complaint year. |
| 2024 Kia Niro | 6 | 1 | Compare as a potentially cleaner alternative. |
| 2025 Kia Niro | 8 | 1 | Inspect as a potentially higher-complaint year. |
2021 Kia Niro Complaint Theme Map
Complaint counts become more useful when they are grouped into inspection themes. For the 2021 Kia Niro, these are the component areas with the clearest NHTSA complaint signals. Use each link to jump from this single vehicle into broader component hubs and make-specific issue pages.
Power Train,Engine
1 owner complaint mention this component in the current safety profile.
All Power Train,Engine issues Kia onlyVehicle Speed Control
1 owner complaint mention this component in the current safety profile.
All Vehicle Speed Control issues Kia onlyPower Train,Electrical System,Engine
1 owner complaint mention this component in the current safety profile.
All Power Train,Electrical System,Engine issues Kia onlyElectrical System
1 owner complaint mention this component in the current safety profile.
All Electrical System issues Kia onlyUnknown Or Other
1 owner complaint mention this component in the current safety profile.
All Unknown Or Other issues Kia onlyVisibility
1 owner complaint mention this component in the current safety profile.
All Visibility issues Kia onlyAI Safety Analysis for the 2021 Kia Niro
Reliability Score
The 2021 Kia Niro receives a reliability score of 87 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates above-average reliability relative to comparable vehicles.
Known Issues for the 2021 Kia Niro
The following issues have been identified from NHTSA complaint data and owner reports for the 2021 Kia Niro:
| Issue | Severity | Frequency | Typical Mileage |
|---|---|---|---|
| Automatic Transmission Clutch/Bands Actuators/Solenoids Kia is recalling certain 2017-2022 Niro and 2018-2022 Niro Plug-in Hybrid vehicles due to potential issues with the automatic transmission clutches/bands actuators/solenoids. |
Medium | Common | 30k-60k miles |
| Electrical System Fuses Recall letter from NHTSA for 2021 Niro indicating that HCA or fuse might need replacement. |
Low | Common | N/A miles |
| Sunroof Malfunction Sunroof suddenly exploded while driving on a major highway, potentially causing injury. |
High | Rare | N/A miles |
| Reflective Dashboard Trim Silver strip of trim running across the dashboard can cause glare and impair visibility. |
Medium | Common | N/A miles |
Common Problems Reported by Owners
Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2021 Kia Niro:
Issues with the automatic transmission, including clattering noises and potential recalls, are a common problem.
Problems with the electrical system, such as fuses needing replacement, are a common issue.
Sunroof malfunctions, including sudden explosions, are a rare but serious problem.
Reflective dashboard trim can cause glare and impair visibility, a common issue.
Recall Details for the 2021 Kia Niro
The following 1 recall has been issued for the 2021 Kia Niro by NHTSA:
Summary: 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.
Consequence: 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 Complaint Summaries for the 2021 Kia Niro
Below are complaint narratives filed by owners of the 2021 Kia Niro with the National Highway Traffic Safety Administration. 1 complaint involved crashes. 1 reported injuries or fatalities.
EV motor and drive train have a clattering noise, much like a playing card attached to a bicycle clattering against the wheel spokes. it speeds up and slows down with the acceleration of the motor.
I was backing out of a tandem parking spot in a private garage and got too close to a pillar, and tried to pull forward into the spot. It felt like the car got snagged on the pillar, but while pulling forward slowly, the gas pedal snapped off and the car accelerated quickly and uncontrollably. I was able to avoid hitting other cars but drove straight into a concrete wall despite immediately brakin...
I received important safety recall letter for NHTSA recall # 23V534. the HCA & or Fuse might need to be replaced . I brought the 2021 Nero to my local Kia dealership, Eagle kia ,Riverhead NY on January 18th. The dealership still has the vehicle & claims that a code came up when they did the diagnostics That requires a part that must be secured to complete the fix for the recall. they claim they...
Problem has not been remedied. What is my recourse? How long do I have to drive around worried about the car going on fire?
Vehicle is available for inspection upon request. HEV light lit up on dashboard and a warning message was displayed alerting me to immediately pull over and turn off the vehicle. At the same time the vehicle was not responding and acceleration became troubling and with marked hesitation. After waiting several minutes I attemped to turn the vehicle on again but the warning light and alarm went off....
While driving on a major highway, my sunroof suddenly exploded. Luckily the screen was pulled shut otherwise I would have been covered in glass. I was able to drive to the next exit and park the vehicle to then get out and observe the damage. There was a gaping hole in the sunroof. I called a tow who brought me to a Kia dealership. I explained what happened and after inspecting the car the de...
There is a silver strip of "trim" running completely across the dashboard just above the radio controls. It is so reflective that a glare occurs periodically throughout the day when the sun hits it. It's so bad that it blocks the left side mirror with the reflection and can even blind the driver. This needs to be addressed by Kia. Easy solution is to have Kia remove the strips, paint them black, a...
NHTSA Defect Investigations for the 2021 Kia Niro
NHTSA defect investigations are higher-signal than ordinary complaints because they indicate the agency opened a formal review of a potential safety defect. Some investigations later connect to recall campaigns; others close without a recall after review.
Component: Electrical System:Propulsion System
Opened 2023-01-27 · Closed 2023-08-07
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-spe...
Frequently Asked Questions About the 2021 Kia Niro
Has the 2021 KIA NIRO been recalled?
Yes, the 2021 KIA NIRO has 1 recall on record with NHTSA. Each recall addresses a specific safety defect identified by the manufacturer or NHTSA.
How many complaints does the 2021 KIA NIRO have?
The 2021 KIA NIRO has 7 complaints filed with NHTSA. Of these, 1 involved crashes. 1 injuries and 0 deaths have been reported.
What is the safety rating for the 2021 KIA NIRO?
The 2021 KIA NIRO does not have an NHTSA safety rating on file. This can happen for newer model years, specialty vehicles, or models that have not been crash-tested.
What are the most common problems with the 2021 KIA NIRO?
The most commonly reported problems with the 2021 KIA NIRO involve power train,engine (1 complaints), vehicle speed control (1 complaints), power train,electrical system,engine (1 complaints). Other affected components include electrical system, unknown or other, visibility.
How many crash reports does the 2021 KIA NIRO have?
There are 1 crash reports associated with the 2021 KIA NIRO out of 7 total complaints (14.3% of complaints involved crashes).
How many fire reports does the 2021 KIA NIRO have?
There are no fire reports for the 2021 KIA NIRO in the NHTSA database.
Are there any deaths reported for the 2021 KIA NIRO?
No deaths have been reported in NHTSA complaints for the 2021 KIA NIRO.
How many injuries are reported for the 2021 KIA NIRO?
1 injury has been reported in NHTSA complaints for the 2021 KIA NIRO. These are self-reported by vehicle owners as part of their safety complaints.
Should I buy a 2021 KIA NIRO?
Based on NHTSA data, the 2021 KIA NIRO is research thoroughly before purchasing. It has 7 complaints, 1 recalls. Always have a pre-purchase inspection done by a qualified mechanic.
What components fail most on the 2021 KIA NIRO?
The components with the most failures on the 2021 KIA NIRO are: 1. POWER TRAIN,ENGINE (1 complaints), 2. VEHICLE SPEED CONTROL (1 complaints), 3. POWER TRAIN,ELECTRICAL SYSTEM,ENGINE (1 complaints), 4. ELECTRICAL SYSTEM (1 complaints), 5. UNKNOWN OR OTHER (1 complaints). POWER TRAIN,ENGINE is the single most-reported problem area with 1 complaints.
What should I know before buying a 2021 KIA NIRO?
Be aware of potential power train and electrical system issues, and check for recalls. Ensure proper visibility by addressing any reflective dashboard trim. The 2021 KIA NIRO has 7 NHTSA complaints and 1 recalls on record.
How reliable is the 2021 KIA NIRO?
The 2021 KIA NIRO receives a reliability score of 87/100, indicating above-average reliability. This is based on 7 owner complaints, 1 recalls, and 1 crash/fire reports in the NHTSA database. Key known issues include Automatic Transmission Clutch/Bands Actuators/Solenoids and Electrical System Fuses.
What are the known issues with the 2021 KIA NIRO?
Known issues with the 2021 KIA NIRO include: Automatic Transmission Clutch/Bands Actuators/Solenoids, Electrical System Fuses, Sunroof Malfunction, Reflective Dashboard Trim. These are based on patterns found across 7 NHTSA complaints. 1 of these patterns resulted in formal recalls.
What are the common power train issues with the 2021 KIA NIRO?
Clattering noises in the power train and potential recalls due to transmission issues are common.
How can I address reflective dashboard trim issues?
Contact a dealership to have the reflective trim adjusted or replaced to improve visibility.
What should I do if I experience a sunroof malfunction?
Seek immediate assistance and have the sunroof inspected and repaired by a professional.
Buyer Advice
Our recommendation: Be aware of potential power train and electrical system issues, and check for recalls. Ensure proper visibility by addressing any reflective dashboard trim.
NHTSA Data Summary for 2021 Kia Niro
This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2021 Kia Niro. The data includes 7 consumer complaints filed by vehicle owners, 1 manufacturer-initiated safety recalls, 1 reported crashes, 1 reported injuries, and safety rating assessments associated with this vehicle.
All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.
Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.
Disclaimer: This analysis is AI-generated from NHTSA public data and does not constitute professional automotive or safety advice. Always verify recall status at NHTSA.gov and consult a qualified mechanic.
Analysis last updated: 2026-05-16