KIA SOUL · model year

2021 KIA SOUL

240 NHTSA complaints, 21 crash reports, and 2 active recalls for this specific cohort.

NHTSA overall rating

4 / 5 ★

New Car Assessment Program

The 2021KIASOUL carries 240 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 21 crashes, 4 fires, 12 injuries, and 0 fatalities. For crash performance, NHTSA's New Car Assessment Program gave this cohort an overall 4/5 rating, with 4/5 front crash, 5/5 side crash, and 4/5 rollover scores derived from standardized barrier and dynamic tests.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 SOUL is engine with 95 filings, followed by engine and engine cooling (33) and unknown or other (22). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 2 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.

NHTSA currently has 38 investigation files overlapping the 2021 SOUL, and 1 remain open. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

240
Complaints
21
Crashes
4
Fires
12
Injuries
0
Deaths
2021 KIA SOUL — NHTSA crash-test profile NHTSA NCAP crash-test star ratings for the 2021 KIA SOUL. Overall composite: 4.0 of 5 stars across 3 safety dimensions. Front CrashSide CrashRollover 4.0 NHTSA NCAP of 5 stars
  • Front Crash 4.0 ★
  • Side Crash 5.0 ★
  • Rollover 4.0 ★
NHTSA overall 4.0/5 stars, with front-crash, side-crash and rollover ratings from standardized NCAP barrier and dynamic tests.

Total Complaints

240 filings

Crashes Reported

21 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

Above median complaint volume — review patterns below.

NHTSA NCAP overall: 4/5 — Strong NCAP rating · Front: 4/5 · Side: 5/5 · Rollover: 4/5

Complaints by Component

ComponentCount
ENGINE95
ENGINE AND ENGINE COOLING33
UNKNOWN OR OTHER22
POWER TRAIN20
ELECTRICAL SYSTEM13
SERVICE BRAKES9
FUEL/PROPULSION SYSTEM9
STEERING8
VISIBILITY/WIPER5
EXTERIOR LIGHTING4
AIR BAGS4
SUSPENSION3
FORWARD COLLISION AVOIDANCE: WARNINGS3
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING3
ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR2

Recalls (2)

25V09900017/02/2025

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Kia America, Inc. (Kia) is recalling certain 2021-2023 Seltos and Soul vehicles. The piston oil rings may have been manufactured incorrectly, which can result in engine damage.

21V25900013/04/2021

ENGINE

Kia Motors America (Kia) is recalling certain 2020-2021 Soul, and 2021 Seltos vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which may result in engine damage.

Recent Complaints

20260218CrashSERVICE BRAKES

Description of Incident: On February 13, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul (VIN: [XXX] ) on Calvine Road in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency. INFORMATION REDACTED PURSUANT TO TH

20260218CrashFORWARD COLLISION AVOIDANCE: WARNINGS

Description of Incident: On February 13, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul (VIN: [XXX] ) on Calvine Road in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency. INFORMATION REDACTED PURSUANT TO TH

20260218CrashFORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Description of Incident: On February 13, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul (VIN: [XXX] ) on Calvine Road in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency. INFORMATION REDACTED PURSUANT TO TH

20260216ENGINE

We are the 2nd owner of 2021 Kia Soul bought in July 2025. Took to a dealership for open recalls shortly after purchase. After supposedly passing the piston ring recall (NHTSA 21V259) for the next several months after it had severe oil consumption but other wise drove fine. Then immediately after our last oil change on Feb 13, 2026, less than 10 miles later the car stalled and was knocking badly. Towed to nearest dealership and after diagnostic was told engine needs replacing. Wants us to pay for it. The software update (Piston Ring Noise Sensing System or PNSS) installed during the recall visit did not fix the faulty piston rings and also failed to give any warning for the impending engine failure. We never had any check engine or oil pressure lights come on until this incident.

20260213CrashSERVICE BRAKES

Description of Incident: On February 9, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul on Calvine Road and Winterberry in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed, rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency.

20260213CrashFORWARD COLLISION AVOIDANCE: WARNINGS

Description of Incident: On February 9, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul on Calvine Road and Winterberry in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed, rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency.

20260213CrashFORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Description of Incident: On February 9, 2026, at approximately 3:00 PM, I was driving my 2021 Kia Soul on Calvine Road and Winterberry in Elk Grove, CA. A vehicle suddenly merged into my path. I immediately attempted to apply the brakes, but the pedal failed to depress or engage normally. Despite the imminent collision, the Forward Collision-Avoidance Assist (FCA) failed to provide any alert, and the Automatic Emergency Braking (AEB) system did not activate. To avoid a high-speed, rear-end collision, I was forced to perform an emergency steering maneuver toward the curb and into roadside bushes to stop the vehicle. This maneuver resulted in severe mechanical failure, including a broken driver-side axle, damaged rims, and broken brake pads. The dealership (Elk Grove Kia) has provided an estimate of $9,461.67 for these repairs but has failed to explain why the primary safety systems and service brakes failed to function as designed during this emergency.

20260209POWER TRAIN

The transmission on the vehicle has gone bad twice since we purchased it used. The car has 34,400 miles on it. The problem puts the driver in an unsafe situation as the problem causes the car to lose power while at high speeds. The piston rings have also been replaced as part of the recall. Kia just keeps replacing these parts with more defective parts. I have videos if you want them.

20260209ENGINE

The transmission on the vehicle has gone bad twice since we purchased it used. The car has 34,400 miles on it. The problem puts the driver in an unsafe situation as the problem causes the car to lose power while at high speeds. The piston rings have also been replaced as part of the recall. Kia just keeps replacing these parts with more defective parts. I have videos if you want them.

20260205ENGINE

Owner was driving home at the normal posted speed limit when the car stalled out. The check engine light was on along with the oil Light, the car cranked back up in time before owner was rear ended. No accident occurred but a close call. The vehicle made it about another 1 mile before stalling again this time losing all control in steering as well and was towed home.

20260205FUEL/PROPULSION SYSTEM

Owner was driving home at the normal posted speed limit when the car stalled out. The check engine light was on along with the oil Light, the car cranked back up in time before owner was rear ended. No accident occurred but a close call. The vehicle made it about another 1 mile before stalling again this time losing all control in steering as well and was towed home.

20260205ENGINE

I own a 2021 Kia Soul (VIN: [XXX] ). It is under Safety Recall SC209. The engine has failed TWICE due to this defect (stalling in traffic). The dealer (Ourisman Kia) and Manufacturer (Kia America) are refusing to provide a safe loaner vehicle while they inspect it, leaving a 100% disabled veteran stranded. I am reporting a failure to remedy a safety defect in a reasonable time. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

20260130ENGINE AND ENGINE COOLING

The contact owns a 2021 Kia Soul. The contact stated that while driving at various speeds, the engine was consuming an excessive amount of engine oil. While depressing the accelerator pedal, there was an abnormal sound coming from the engine. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed. The contact was topping off the engine oil bi-weekly. The contact related the failure to NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING) for which the VIN was included. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 150,000.

Mileage: 150,000

20260124ENGINE

My Kia Soul had a recall for the Pistons to be replaced due to faulty pistons. Now they are saying my engine is needing replacement, even with regular scheduled oil changes being done. They said the top was full of sludge. The said it's not covered so I have to pay 6900 plus to get it replaced

20260123ENGINE AND ENGINE COOLING

The contact owns a 2021 Kia Soul. The contact stated that the engine was running rough, and there was a significant amount of air and oil when the oil cap was opened. Additionally, there was an abnormal sound coming from the exhaust system. The vehicle was sluggish while driving and depressing the accelerator pedal. The wrench warning light was illuminated. The contact stated that the vehicle was taken to the dealer for repair under NHTSA Campaign Number: 21V259000 (Engine); however, upon inspection, the dealer informed the contact that no repair was needed, and the recall was marked as completed; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was advised that there would be a charge for fuel sampling. The vehicle was not diagnosed or repaired. The failure was also associated with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mile

Mileage: 84,000

20260123ENGINE

The contact owns a 2021 Kia Soul. The contact stated that the engine was running rough, and there was a significant amount of air and oil when the oil cap was opened. Additionally, there was an abnormal sound coming from the exhaust system. The vehicle was sluggish while driving and depressing the accelerator pedal. The wrench warning light was illuminated. The contact stated that the vehicle was taken to the dealer for repair under NHTSA Campaign Number: 21V259000 (Engine); however, upon inspection, the dealer informed the contact that no repair was needed, and the recall was marked as completed; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was advised that there would be a charge for fuel sampling. The vehicle was not diagnosed or repaired. The failure was also associated with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mile

Mileage: 84,000

20260123FUEL SYSTEM, GASOLINE

The contact owns a 2021 Kia Soul. The contact stated that the engine was running rough, and there was a significant amount of air and oil when the oil cap was opened. Additionally, there was an abnormal sound coming from the exhaust system. The vehicle was sluggish while driving and depressing the accelerator pedal. The wrench warning light was illuminated. The contact stated that the vehicle was taken to the dealer for repair under NHTSA Campaign Number: 21V259000 (Engine); however, upon inspection, the dealer informed the contact that no repair was needed, and the recall was marked as completed; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was advised that there would be a charge for fuel sampling. The vehicle was not diagnosed or repaired. The failure was also associated with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mile

Mileage: 84,000

20260122ENGINE

vehicle is consuming over 2 quarts of oil in less than 1000 miles and it causing the oil light to come on and loss power.

20260115ENGINE AND ENGINE COOLING

The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, there was an abnormal rumbling sound coming from the engine with the check engine warning light illuminated. The contact had received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the dealer, and the contact was informed that the vehicle failed the inspection test for the recall. The contact was informed that the PNSS software was installed, and the check engine warning light was reset. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be rebuilt or replaced. The vehicle was not repaired. In addition, the contact was informed that the engine failure was caused by the recall repair. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The contact

Mileage: 136,000

20260113ENGINE

On 01/12/2026, I had my 2021 Kia Soul (VIN: [XXX] ) inspected by a technician at J&K Automotive after discovering a significant drop in oil. The technician found the engine oil dipstick completely dry. A review of service records shows the last oil change was on 09/18/2025 (Odometer: 20,862), meaning the engine consumed nearly its entire oil capacity in just 3,699 miles. The technician confirmed there are no external leaks and no dashboard warning lights (oil pressure or check engine) were illuminated prior to or during the inspection. This lack of warning creates a severe safety risk of sudden engine seizure and stalling at highway speeds. The billing summary noted that the Kia Soul with my engine had a potentially defective piton ring design. This failure is consistent with Recall 25V-099 (SC336) regarding defective piston oil rings causing cylinder bore scuffing. I am reporting this to document that the Piston-ring Noise Sensing System (PNSS) failed to provide an early warning of

Compare 2021KIASOUL to Similar Vehicles

NHTSA Investigations 1 Open

View all investigations

Frequently Asked Questions

How many complaints does the 2021 KIA SOUL have?
The 2021 KIA SOUL has 240 NHTSA complaints, 21 crashes, 4 fires, 12 injuries, and 0 deaths reported.
What is the safety rating for the 2021 KIA SOUL?
The 2021 KIA SOUL received an overall NHTSA safety rating of 4/5, front crash rating of 4/5, side crash rating of 5/5, and rollover rating of 4/5.
Are there any recalls for the 2021 KIA SOUL?
Yes, the 2021 KIA SOUL has 2 recall(s). The most common affected component is ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2021 KIA SOUL?
The most-complained component for the 2021 KIA SOUL is ENGINE with 95 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING and UNKNOWN OR OTHER.
Is the 2021 KIA SOUL safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. The 2021 KIA SOUL has an NHTSA safety rating of 4/5. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.