Is the 2018 Kia Sportage a bad year?
165 owner complaints to NHTSA. Engine complaints: 96, 4.2× a quiet Sportage year.
Keep it, but watch the engine
The engine draws 4.2× the complaints of a quiet Sportage year, spread over 9k–81k miles, so there's no single mileage to plan around.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2018 Sportage owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 28,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| EngineSTANDS OUT | 96 (58%) | 9k–81k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Electrical system | 30 (18%) | 12k–79k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Transmission and drivetrain | 18 (11%) | 14k–58k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Brakes | 11 (7%) | too few with a mileage | — |
| Fuel system | 11 (7%) | too few with a mileage | — |
| Steering | 9 (5%) | too few with a mileage | — |
| Speed control | 8 (5%) | too few with a mileage | — |
| Body structure | 6 (4%) | too few with a mileage | — |
| Exterior lighting | 6 (4%) | too few with a mileage | — |
| Visibility and wipers | 5 (3%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 28,000 miles. Not a quote.
What owners reported alongside their complaints
Of 165 complaints: 7 mention a crash · 12 mention a fire · 4 report an injury · 12 say the car was towed.
23 complaints were filed in the last 12 months, the newest in Oct 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
For the past 6 months or so, I've been experiencing an unknown issue. I'll be driving along, steadily and all of a sudden my engine and RPM gauge will rev up and then go back to normal.
After ECU upgraded under "Product improvement campaign", engine suffered severe loss of power while traveling at highway speed, leading to rapid loss of speed.
Knocking on the engine upon starting. No longer running the vehicle because of noise.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 28,000 miles), not by content. Unverified.
Recalls for the 2018 Kia Sportage: 3
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. A fire while parked or driving can increase the risk of injury.
The electrical circuit in the Hydraulic Electronic Control Unit (HECU) may short-circuit, which can cause a fire in the engine compartment. An engine compartment fire can increase the risk of injury.
The high pressure fuel pipe that connects to the fuel pump outlet may have been damaged, misaligned or improperly torqued during the engine replacement procedure, possibly causing a fuel leak. A fuel leak in the presence of an ignition source can increase the risk of a fire.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Kia: 71
Repair instructions Kia sent its dealers for symptoms seen in the shop on the 2018 Kia Sportage. Ask a dealer or mechanic for a bulletin by its number.
Product improvement campaign: engine replacement instructions for DTC P1326 (PI1802Y/Z)
AWD SYSTEM CONCERN DUE TO TIRE CIRCUMFERENCE - This Pitstop provides information regarding potential concerns with the All-Wheel-Drive…
Injector harness routing for PI1802Y/Z and PI1803Y/Z engine replacements
TSB_PI1802_R2 Knock Sensor Detection System ECU Logic Improvement
NHTSA defect investigations: 1
Hyundai and Kia ABS Module Fires
Neighbouring years
2017 Sportage: 404 complaints, keep it, but watch the engine · 2019 Sportage: 71 complaints, keep it.
Every Kia Sportage year
2000 · 2001 · 2002 · 2003 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All Sportage years side by side
Other Kia models: Kia Amanti · Kia Cadenza · Kia Carnival · Kia EV6 · Kia EV9 · Kia Forte · Kia K5 · Kia Niro · Kia Optima · Kia Optima Hybrid · Kia Rio · Kia Rondo · Kia Sedona · Kia Seltos · Kia Sephia · Kia Sorento · Kia Soul · Kia Spectra · Kia Stinger · Kia Telluride. All makes and models.
Questions
Is the 2018 Kia Sportage a bad year?
165 owner complaints to NHTSA. Engine complaints: 96, 4.2× a quiet Sportage year. At 28,000 miles the tool says: Keep it, but watch the engine. The engine draws 4.2× the complaints of a quiet Sportage year, spread over 9k–81k miles, so there's no single mileage to plan around.
What are the most common problems with the 2018 Kia Sportage?
By owner complaints to NHTSA: engine (96), electrical system (30), transmission and drivetrain (18), brakes (11), fuel system (11). Half of the engine complaints were filed between 9k–81k miles.
How many recalls does the 2018 Kia Sportage have?
3 recall campaigns list this model year: Trailer hitch (NHTSA 22V-703), Brakes (NHTSA 21V-137), Fuel system (NHTSA 18V-907). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.