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2021 Kia Forte: engine and transmission complaints

HIGH COMPLAINT SIGNAL
48%
29 of 60 relevant owner complaints are about the engine, transmission or fuel system

48% of relevant owner complaints filed with NHTSA on the 2021 Kia Forte are about the engine, transmission or fuel system. That is a model-level pattern, not bad luck.

Worse than 61% of the 1,230 model years we track (2010–2023).

Excludes 7 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 43%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
29
engine, transmission, fuel
Total complaints
67
this model year
Fires reported
0
owner-reported
Recall campaigns
2
10 crashes · 6 injuries

Complaints by component

ENGINE22 · 33%
UNKNOWN OR OTHER17 · 25%
STEERING9 · 13%
ELECTRICAL SYSTEM8 · 12%
POWER TRAIN7 · 10%
AIR BAGS6 · 9%

The years either side

2010
57%
100 of 232
2011
57%
69 of 161
2012
73%
189 of 305
2013
72%
128 of 211
2014
63%
227 of 441
2015
76%
171 of 259
2016
68%
78 of 137
2017
70%
172 of 301
2018
58%
68 of 136
2019
64%
85 of 147
2020
50%
34 of 75
2021
48%
29 of 67
2022
38%
8 of 26
2023
30%
16 of 61

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other compact cars with no elevated signal in 2021

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

ENGINE04/24/2026
Driving under normal conditions April 20,2026, on the way to school. Got off the freeway and the vehicle immediately shut-off and the check engine light came on. Vehicle was stuck partially in the roadway and would not move. Vehicle was towed to Kia dealership and they found that there was no oil in the engine and t…
ENGINE04/18/2026
To Whom It May Concern, I am submitting a formal complaint regarding a serious safety issue involving my 2021 Kia Forte. Approximately one year ago, I purchased this vehicle used with approximately 56,000 miles. I have owned the vehicle for nearly a year without prior incident until a recent and significant failure oc…
ENGINE03/10/2026
Oil is burning out quickly causing the car to stop abruptly without any warning and caused damages to the engine.

Three of 29 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (2)

AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE
Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the p…
STEERING:COLUMN
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 c…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Kia Forte

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.