2021 Kia RIO: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
15 owner complaints analyzed
2 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data snapshot: . 0 complaints include usable failure mileage.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 6 of 15 complaints (40.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 5 | 33.3% |
| Transmission and shifting | 1 | 6.7% |
| Braking behavior | 1 | 6.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Unknown Or Other | 6 |
| Steering | 4 |
| Service Brakes | 3 |
| Engine | 2 |
| Power Train | 2 |
| Back Over Prevention: Sensing System: Camera | 1 |
| Electrical System | 1 |
| Fuel/Propulsion System | 1 |
Unknown Or Other: 6; Steering: 4; Service Brakes: 3; Engine: 2; Power Train: 2; Back Over Prevention: Sensing System: Camera: 1; Electrical System: 1; Fuel/Propulsion System: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 15 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2022 | 6 |
| 2023 | 6 |
| 2025 | 2 |
2021: 1; 2022: 6; 2023: 6; 2025: 2
Pattern summary
Unknown Or Other leads the component reports. Steering behavior appears in 5 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11426082 · 2021-07-23 (July 23, 2021)
On the way to work, I had the brake pedal pressed waiting for a traffic signal to change. After it changed to green, I released the brake pedal and depressed the gas pedal, only for the vehicle not to move forward - as if the brake was still being applied. I took my foot off the gas pedal, waited a second or two, then tried the gas pedal again and it still did not move. I was at the traffic signal for nearly 10 seconds with nothing touching the brake pedal and unable to drive forward. The vehicle did not turn off, display any warning lights, or…
Owner-reported narrative. Look up ODI 11426082 at NHTSA ↗
Owner report 11446051 · 2022-01-03 (January 3, 2022)
Vehicle has less than 4000 miles and throttle body had to be replaced
Owner-reported narrative. Look up ODI 11446051 at NHTSA ↗
Owner report 11448123 · 2022-01-19 (January 19, 2022)
Vehicle failed to reduce speed effectively while trying to avoid a collision with another vehicle during a left turn, which then caused the vehicle to turn widely and collide with the curb.
Owner-reported narrative. Look up ODI 11448123 at NHTSA ↗
Owner report 11459319 · 2022-04-02 (April 2, 2022)
I was driving 60-70 miles an hour for 45 minutes then car lost all acceleration and engine light came on. I pulled over immediately turned the car off. Turned it back on drove 1/4 of a mile and same thing happened. I pulled over turned car off and had it towed to the dealership.
Owner-reported narrative. Look up ODI 11459319 at NHTSA ↗
Owner report 11480234 · 2022-08-19 (August 19, 2022)
The steering wheel column does not have a lock therefore someone broke into my car and tried to steal it and destroyed it, also no alarm went off when this happened.
Owner-reported narrative. Look up ODI 11480234 at NHTSA ↗
Owner report 11491460 · 2022-10-29 (October 29, 2022)
I had driven my wife to her school about 5 miles and headed back to my work another 5 miles when i tried to accelerate pass car I lost almost all power barely making it up a slight hill I kept going trying to make it to my house barely going 10 miles an hour. I thought the transmission had let go cause while I had the gas peddle floored i went at best 10-15 miles an hour I eventually parked the car I knew it would never make it up another slight hill. It was rowed to a nearby dealer where they could find no problem telling me it was just s…
Owner-reported narrative. Look up ODI 11491460 at NHTSA ↗
Owner report 11495434 · 2022-11-30 (November 30, 2022)
Having been complaining about a noise from under the front right tire, I was initially told it was a little piece of plastic and that got cut off. I was still hear the scraping and squealing and I kept check the from right tire because I thought that's where it was coming from. I mentioned this to every mechanic at kia and was told "that's just how 2021s sound". Finally after months of complaining the noise got louder and you could hear it was clearly something in steering. They schedules an appointment for Dec 7th on Mon Nov 28th. Said it was …
Owner-reported narrative. Look up ODI 11495434 at NHTSA ↗
Owner report 11500633 · 2023-01-07 (January 7, 2023)
The contol post for lights, turn signal, and high beams is too sensitive. To control the lights, you twist the top of lever. To turn on turn signals, you flip the lever up or down. To turn on brights, the lever goes forward. To turn of lights, the lever is pulled back. The issue..... If you have brights on, when you pull lever back to dim lights, the top automatically twists to shut off the headlights entirely. DANGEROUS DANGEROUS DANGEROUS. My husband doesn't have this problem, but he has longer fingers and his fingers hit the lever mor…
Owner-reported narrative. Look up ODI 11500633 at NHTSA ↗
Recall history
2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
21V936000 · Service Brakes, Hydraulic:Foundation Components:Master Cylinder
Reported: 2021-12-01 (December 1, 2021)
Kia Motors America (Kia) is recalling certain 2020-2021 Rio vehicles. The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance.
Consequence: Reduced braking performance can cause longer brake pedal travel or extend the distance required to stop the vehicle, increasing the risk of a crash.
Remedy: Dealers will replace the brake master cylinder, free of charge. Owner notification letters were mailed January 11, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall SC223.
NHTSA campaign record ↗22V304000 · Steering:Column
Reported: 2022-05-05 (May 5, 2022)
Kia Motors America (Kia) is recalling certain 2021-2022 Rio and Forte vehicles. A bolt in the steering column may not be secured properly, which can cause the steering column to detach from the steering rack and result in a loss of steering control.
Consequence: Loss of steering control can increase the risk of a crash.
Remedy: Dealers will tighten the lower steering column u-joint retention bolt, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall SC235.
NHTSA campaign record ↗