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ProblemsByVinFile / 2018-KIA-SEDONANHTSA data synced 1 day ago
Kia
2018 Kia Sedona problems
Light NHTSA footprint — 47 owner complaints and 3 active recall campaigns. Either a clean record or thin data; we'll show what's there.
The 2018 Kia Sedona has 47 NHTSA owner complaints and 3 recalls on file (U.S. federal records, as of August 2026). The most-reported system is engine at 17 complaints (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
Solid reliability overall. Common issues are concentrated in a few systems.
0
Critical
3
Severe
0
Moderate
Should you avoid this 2018 Sedona?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Reliability score 7.6/10 — above the segment average
3 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
Buying a used 2018 Kia Sedona? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
engine — 17 owner reports
· ~$3,100 to fix
electrical — 11 owner reports
· tends to show around 46,890 mi · ~$850 to fix
airbags — 4 owner reports
· tends to show around 42,442 mi · ~$1,100 to fix
⚠ The one to take seriously: engine is flagged
severe on this model
.
Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — 3 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 7.6/10 model. The priciest documented failure is
engine (~$3,100) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2018 Sedona· engine
Head gasket blew and caused coolant to leak into the engine. We broke down on the side of the interstate. Our vehicle sat at the dealer for 5 months awaiting a new engine to be put in. No warnings beforehand.
My [XXX] son pulled the seatbelt so tight it got wrapped around his neck. When I pulled over to unbuckle it, it was stuck. I turned the car off and on again to try and loosen it, but it didn't work. In the emergency, I had to cut the seatbelt with scissors. It's the passenger…
Engine in my 2018 Kia has failed. This should be covered under warranty as van only has 90k miles on it but because I am the second owner they are telling me it is not covered. Several other 2018 Kia’s have already been recalled for engine failure. My car was burning oil. This…
We only had our vehicle 5 months and my husband was sitting in traffic during a snowstorm and the wipers stopped working. We took the vehicle to the dealer and they told us it's not a manufacturer's defect so we would have to pay $507 out of pocket to replace the wiper motor.…
Had a problem with your 2018 Kia Sedona?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Kia Motors America (Kia) is recalling certain 2017-2019 Sedona, Soul, Soul EV, 2017-2018 Forte, and 2017 Forte Koup vehicles
Air bags that do not deploy as intended can increase the risk of injury in a crash.
Fix: Dealers will inspect the ACU, and either update the software or replace the unit, as necessary. Repairs will be performed free of charge. Owner notification letters were mailed March 21, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC226.
Kia Motors America (Kia) is recalling certain 2015-2018 Sedona vehicles equipped with manually-adjusted front passenger seats
If a child is in a child seat in the front seat, a broken ODS wiring harness will not prevent the front passenger air bag from deploying in the event of a crash, increasing the risk of injury to the child.
Fix: Kia will notify owners, and dealers will remove the wire harness clip to prevent the wiring harness from breaking. If the harness is found damaged, the front passenger seat cushion will be replaced. These repairs will be performed free of charge. The recall began March 19, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC175.
Kia Motors America (Kia) is recalling certain 2015-2018 Kia Sedona vehicles equipped with a power sliding door (PSD)
If the door closes on an occupant, there is an increased risk of an injury.
Fix: Kia will notify owners, and dealers will reprogram the PSD module software, free of charge. The recall began on June 18, 2018. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC164.
Common questions
Is the 2018 Kia Sedona reliable?
Mostly yes. With a reliability score of 7.6 out of 10 based on 47 owner complaints filed with NHTSA, the 2018 Kia Sedona is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2018 Kia Sedona?
The 2018 Kia Sedona is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 7.6/10 — above the segment average; 3 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2018 Kia Sedona?
Inspect the engine first — it's the most-reported issue on this model, with 17 owner complaints filed. Average repair cost runs about $3,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2018 Kia Sedona a good used car to buy?
It scores 7.6 out of 10 on our NHTSA-based read of 47 owner complaints. The main thing to watch is engine. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2018 Kia Sedona?
Based on NHTSA records, the most-reported issue is engine, with 17 complaints filed. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Kia Sedona has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Kia Sedona?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 47 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 1 day ago. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Kia/Sedona.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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