There are 2 stored owner reports matching the brakes leading-label group for the 2021 Kia Rio in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)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.
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 any signs of other trouble. The parking brake was not applied and the vehicle was in Drive. After putting the vehicle in reverse and back into drive while still stopped at the traffic signal, the car resumed normal operation. The vehicle has less than 200 miles, bought brand new from the dealership a few days prior and has only gone for a car wash at the dealership aside from normal daily commute. The problem has not been reported to the dealership or manufacturer at the time of this report.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.