The Lane Check

CarsKia › Sportage › 2018

2018 Kia Sportage: engine and transmission complaints

VERY HIGH COMPLAINT SIGNAL
65%
103 of 163 relevant owner complaints are about the engine, transmission or fuel system

65% of relevant owner complaints filed with NHTSA on the 2018 Kia Sportage are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 86% of the 1,230 model years we track (2010–2023).

NHTSA data checked September 13, 2026
Share this car

Looking at a specific Sportage?Check its VIN: the full report, quotes about its own engine, and whether its recalls are still open. First report free.

Check a VIN
Drivetrain complaints
103
engine, transmission, fuel
Total complaints
163
this model year
Fires reported
12
owner-reported
Recall campaigns
3
7 crashes · 5 injuries

Complaints by component

ENGINE90 · 55%
ELECTRICAL SYSTEM29 · 18%
UNKNOWN OR OTHER19 · 12%
POWER TRAIN18 · 11%
FUEL/PROPULSION SYSTEM11 · 7%
SERVICE BRAKES11 · 7%

The years either side

2010
too few complaints
2011
60%
101 of 181
2012
88%
341 of 392
2013
85%
320 of 380
2014
63%
75 of 122
2015
66%
91 of 146
2016
54%
66 of 130
2017
67%
250 of 399
2018
65%
103 of 163
2019
65%
41 of 69
2020
56%
87 of 160
2021
60%
29 of 50
2022
52%
23 of 46
2023
35%
95 of 284

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

Cleaner alternatives

Other compact SUVs with no elevated signal in 2018

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

ENGINE11/22/2024FIRE1 INJURED
The contact owned a 2018 Kia Sportage. The contact stated that while driving at an undisclosed speed, he observed black smoke billowing from the engine compartment, after which the vehicle lost motive power, prompting him and his wife to evacuate the vehicle in the middle of the roadway. While attempting to retrieve im…
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM09/10/2026FIRE
Shortly after driving away, before reaching a highway on-ramp, I noticed smoke coming from the vehicle. I turned around and returned to the location. By the time I arrived, the vehicle was emitting black smoke, and shortly after, it was fully engulfed in fire before I could retrieve a fire extinguisher. Vehicle has a d…
POWER TRAIN,ENGINE08/16/2026
Purchased my Kia on the XXX then on the XXX, My engine light came on and my car went into Safety Mode . I at once took it to Auto Zone and their test came back with P1326 Knock signal range / performance. I then looked it up and found that a recall was put out quite a while back called an [XXX] # took my car to Kia…

Three of 103 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 (3)

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under rec…
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Kia Motors America (Kia) is recalling certain 2017-2021 Sportage and Cadenza vehicles. The electrical circuit in the Hydraulic Electronic Control Unit (HECU) may short-c…
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 e…

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

Before you buy a 2018 Kia Sportage

Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.

Check a VIN

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.