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#BS-2021-KIASOR-433B

2021 Kia SorentoProblems, Recalls & Reliability

Based on reports from 385 owners and 4 recalls for this exact model.

Data updated ·NHTSA complaints through October 19, 2026

Complaints
385
Crashes
10
Fires
1
Recalls
4
TSBs
105
🛑

Preliminary Verdict

Red Flag

Based on 385 complaints, 10 crashes, 1 fires, and 4 recalls. Complaint rate is 1.9x the class average.

See full verdict with buy/skip conditions

Top reported problems

1

rear differential transfer case leak

1 complaints • Severity 4/10

$X,XXX
2

vibration from rear end

1 complaints • Severity 8/10

$X,XXX
3

car losing power when press on gas

1 complaints • Severity 8/10

$X,XXX
4

sticks and makes rubbing noise

1 complaints • Severity 6/10

$X,XXX
5

jerking when moving in reverse

1 complaints • Severity 6/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the DrivetrainHIGH

141 owners reported drivetrain issues — failures commonly reported around 40K miles.

!Inspect the EngineMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

16
0–30K
13
30–60K
16
60–90K
4
90–120K
1
120–150K
150K+

Peak failure range: 0–30K miles (16 reports) • Median: 40K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Drivetrain (141 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Drivetrain141 (37%)
Engine68 (18%)
Electrical46 (12%)
Other40 (10%)
Fuel System24 (6%)
Speed Control13 (3%)
Collision Avoidance7 (2%)
Steering6 (2%)

2021 Kia Sorento: Known Issues & Problem Areas

Drivetrain Issues

Drivetrain complaints account for 37% of all reports filed for the 2021 Kia Sorento, with 141 owners filing complaints with NHTSA. The median mileage at time of complaint is 40,000 miles, suggesting issues tend to surface around the 40K-mile mark.

Engine Issues

Engine complaints account for 18% of all reports filed for the 2021 Kia Sorento, with 68 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.

Electrical Issues

Electrical complaints account for 12% of all reports filed for the 2021 Kia Sorento, with 46 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.

Fuel System Issues

Fuel System complaints account for 6% of all reports filed for the 2021 Kia Sorento, with 24 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

43
21
86
22
33
23
39
24
71
25
113
26

Complaints filed with NHTSA by year for the 2021 Kia Sorento. Recent trend: increasing.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (4 recalls)

21V519000Jul 2021

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Kia Motor America (Kia) is recalling certain 2021 Sorento and 2021-2022 K5 vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.

22V703000Park OutsideJul 2023

TRAILER HITCHES

Kia America, Inc. (Kia) is recalling certain 2016-2022 Sorento, 2021-2022 Sorento Hybrid (HEV), 2022-2023 Sorento Plug-In Hybrid (PHEV), and 2017-2022 Sportage vehicles equipped with a tow hitch harness installed as original equipment, or purchased as an accessory through a Kia dealership. Debris and moisture accumulation on the tow hitch harness module printed circuit board (PCB) may cause an electrical short, which can result in a fire.

22V760000Dec 2022

POWER TRAIN:AUTOMATIC TRANSMISSION

Kia Motors, Inc. (Kia) is recalling certain 2021-2022 Sorento and 2021-2023 K5 vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.

25V649000Jan 2026

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR

Kia America, Inc. (Kia) is recalling certain 2021-2023 Sorento vehicles. The heating, ventilation, and air conditioning (HVAC) blower motor wiring harness may be inadequate, which can result in a fire.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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2021 Kia Sorento NHTSA Safety Ratings

Overall

★★★★★

4 of 5 stars

Frontal crash

★★★★★

4 of 5 stars

Side crash

★★★★★

5 of 5 stars

Rollover

★★★★★

4 of 5 stars

From NHTSA's New Car Assessment Program (5-Star Safety Ratings). Where NHTSA tested more than one version of this vehicle, the lowest rating is shown.

NHTSA Defect Investigations (1)

All closed. Investigations are how NHTSA decides whether a defect needs a recall.

DP22003ClosedOpened Sep 2022 · closed Dec 2023

Loss of Motive Power

ENGINE

The worst model year for the Kia Sorento is the 2016 — worth knowing if you're cross-shopping years. The biggest problem area is engine.

2021 Kia Sorento vs. Class Average (Small Sport Utility Vehicle 2WD)

This vehicle

385

Class avg

206

1.9x the class average — significantly more complaints than typical small sport utility vehicle 2wd vehicles.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 385 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 4 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Last updated . NHTSA complaints received through October 19, 2026; safety ratings from NHTSA's 5-Star program.

Other Kia Sorento Model Years

202620252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003
View all Kia Sorento years →

2021 Kia Sorento: Frequently Asked Questions

What is the most common problem with the 2021 Kia Sorento?
The most commonly reported issue with the 2021 Kia Sorento is related to the drivetrain, with 141 complaints filed with NHTSA.
Is the 2021 Kia Sorento reliable?
The 2021 Kia Sorento has 385 complaints, 10 crash reports, and 1 fire reports filed with NHTSA. This is 1.9x the class average — higher than typical for its segment.
How safe is the 2021 Kia Sorento?
NHTSA rates the 2021 Kia Sorento 4 out of 5 stars overall, with 4 stars in frontal crash tests, 5 stars in side crash tests, 4 stars for rollover resistance. Where NHTSA tested more than one version, the lowest rating is shown.
How much does it cost to fix 2021 Kia Sorento problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2021 Kia Sorento have any recalls?
Yes, the 2021 Kia Sorento has 4 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Kia Sorento problems start?
Based on 50 complaints with mileage data, the median mileage at time of complaint is 40,000 miles. The highest concentration of reported issues occurs in the 0–30K mile range. The full report breaks down exactly which components fail at each mileage bracket.
When was the 2021 Kia Sorento data last updated?
BumperScan last checked this vehicle against NHTSA on October 21, 2026, covering owner complaints received through October 19, 2026 plus the latest recalls, investigations and technical service bulletins.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 385 owner reports. Know before you buy.

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