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2020 Kia Sedona problems

The most common problem on the 2020 Kia Sedona is body and structure. It has fewer complaints than a typical Sedona model year.

Fewer complaintsAmong the best years of this model
Year score
94/100
Owner complaints
20
Recalls
1
Service bulletins
647 warranty
Worst area
Body
Fuel economy
21mpg

The worst 2020 Kia Sedona problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Body
    5
  • Engine
    5
  • Electrical
    3
  • Fuel system
    2
  • Lights
    2
  • Transmission
    2
  • Brakes
    1
  • Seats
    1
  • Tires
    1
  • Wheels
    1

Specific symptoms reported on the 2020 Kia Sedona

Check engine light 5

Recalls 1

Electrical system: alternator/generator/regulatorReported July 8, 2020 · 5,385 vehicles affected
What is wrong
Kia Motors America (KIA) is recalling certain 2020 Sedona vehicles. The battery positive (B+) terminal nut on the alternator may not have been tightened properly during assembly, possibly causing it to loosen over time.
Risk
If the alternator B+ terminal nut loosens, electrical arcing may result, increasing the risk of a fire.
Remedy
Kia will notify owners, and dealers will inspect the alternator B+ terminal nut, tightening it as necessary, free of charge. The recall began August 14, 2020. Owners may contact Kia customer service at 1‑800‑333‑4542. Kia's number for this recall is SC192.

Recall number 20V399000 · Recall details

See all 1 recalls for the 2020 Kia Sedona

Technical service bulletins for the 2020 Kia Sedona 64

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 64 bulletins for the 2020 Kia Sedona

2020 Kia Sedona fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
3.3L 6‑cylFWD182421

What 2020 Kia Sedona owners say

Most recent owner complaints, unedited.

Filed May 9, 2026 · Body · CA

Paint delaminating due to latent defects.

Filed Jan 14, 2026 · Body, Wheels · 65,245 miles · OR

The contact owns a 2020 Kia Sedona. While driving approximately 30 MPH on a main road, the steering wheel started shaking abnormally and became difficult to control. The vehicle was driven to a tire shop and then to an independent mechanic. Additionally, the sliding doors failed to open as needed, the steering wheel occasionally seized, there was tread separation in the tires, and the wheels were bent. The mechanic inspected the tires and steering system, performed a safety inspection, and determined that the vehicle was unsafe to drive. The tires were replaced, and the wheels were repaired; however, the sliding doors were not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 65,245.

Filed Jan 2, 2026 · Engine, Transmission · TN

March 2024 just before hitting 100,000 miles I started having oil consumption issues. Current milage is 137,300 About 10,000 miles ago my check engine light came on. I took it to an auto parts store and it was reading bank 1 O2 sensor. I took it for an oil change and never scheduled for the sensor replacement due to life events. I took it in for another service About 5,000 miles ago. At around 2,000 miles after the service the motor started stalling and sounded horrible. I took it to the dealership and it was 4.5 quarts low on oil. Took it back at 1,200 miles after top off and it was 2.5 quarts low. Started the new motor process which wasn't covered on the extended warranty due to manufactur defect. It cost me 500.00. Before the new motor was in my van started getting me stranded places. Motor wouldn't turn over at all. Got it started went to auto parts store and it was reading 4 bad sensors in bank 1 and 2 (O2 and air intake on the motor). Finally got it to KIA for the new motor told them about they sensors they were supposed to check/replace them when they put the new crate motor in. Picked my van up 3 days ago. I asked when they called if the engine light was off. They called me back several hours later and said yes. Picked it up at 5 pm 3 days ago. By 8am the next morning the engine light was back on. It's scheduled for 9am Monday. The van has now gotten me stranded 2 times in 3 days. Auto parts store ran the computer and the same 4 sensors are still showing bad. Sensors are in bank 1 and 2. The report on the old motor showed cylinder 1 and 2 oil fouling on the spark plugs (replaced at 100,000 miles by dealer) and excessive oil leakage in cylinder 1 and 2 into the crank case due to carbon stuck piston rings. I was told before the motor replacement that the KIA cares warranty may not cover these sensors. Even though the sensors are going out because they are gunked up with 7 quarts of oil their motor used and they didn't go out until the issue started.

Filed Nov 24, 2025 · Engine, Fuel system · SC

Check engine light came on all of a sudden. Smell of exhaust/gas coming from car. Took car to the dealership to get the cause of the check engine light coming on. Dealership said it came back 02 sensor bank 2 and exhaust gasket to header.

Filed Sep 9, 2025 · Engine · SC

Problem: The Vehicle Slows down all of a sudden on the middle of the road from around 70 miles to 10 miles, then slowly drives at 15 or 20 miles speed. Safety Concern: On the Interstate Hwy, this has happened many time. Fortunately without any accidents. Very recently also this happened and I do not drive the vehicle out now, since it does not accelerate. Reason: The failure of the accelerator Pedal. Symptoms: The "Check Engine" light comes one and the Engine abruptly slows down. First time it occurred: I a year after the Vehicle was bought -- 15000 miles -- Company did a Warranty replacement after almost a month (Multiple Visits). Second time it occurred: After 4 years-- 50000 miles -- company did a Warranty Replacement after a month (Multiple visits). Third time it is occurring: After 5 years -- 63000 miles -- Company claims it is no longer a warranty issue and also it is a different problem that is causing the same issue and charging me $5000 for repairs. Present Situation: The Vehicle is unusable and since it is the 3rd time this is happening, there is a serious issue with the Vehicle and I am worried about my/my families Safety. A replacement of the Vehicle with the fully tested one (With no such safety issues)and with guarantee that the Company/Its dealers will service the vehicle without delay will be helpful. Available details: All the correspondence from the first time this issue happened (complete correspondence with the company of my safety and replacement of the vehicle) is available. Also my Service records with the Dealerships and the warranty issues are also available. The False charges by the dealers is also available. The recent visit to another authorized Car shop and their report that this issue is the same old Accelerator pedal issue is also available.

Filed Jul 25, 2025 · Electrical · 77,000 miles · OH

The contact owns a 2020 Kia Sedona. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power with several unknown warning lights illuminated. The vehicle was towed to the dealer, where the vehicle was diagnosed with battery failure. The contact was informed that the battery needed to be replaced. The vehicle was not repaired; however, the failure recurred when the dealer attempted to test-drive the vehicle. The manufacturer was made aware of the failure. The approximate failure mileage was 77,000. The VIN was not available.

Filed May 27, 2025 · OK

The last week of February I took my 2020 Kia Sedona at 67,500 miles into Kia Ferguson in Tulsa, OK to have them replace my High Pressure Fuel Pump which was covered under an extended warranty. When I received my van back, the battery was dead and the AC wasn't working nor the control knob.(it was stuck) I had to replace my battery, and that Friday Kia said they would take a look at it. When I went to pick up my van, they told me it was going to cost $1500 to fix, and that I was responsible. I called Kia consumer Affairs, and discussed this with them as well. To no avail, I am being held responsible. I took my van somewhere else however was quoted higher. I asked if after they fix it was there a possibility it still might not work and that it could be something else, and the gentleman said yes. I don't want to put all of this money to fix a problem, Kia may have inadvertently disconnected something that really just needed to be reconnected. This is a safety issue for me and my children, as I get weak when I am overheated, and it gets entirely too hot in Oklahoma during the summers. I didn't have any prior issues with my AC prior to them replacing my high pressure fuel pump.

Filed May 20, 2025 · Body · OH

Sliding door trys to continue to open when already open all the way, it try’s to open too far, jams and clicks, then beeps.

Filed May 20, 2025 · Body · OH

Sliding door malfunction. Door will not hold its weight and full force closes or opens if operating at an inclined position.

Filed Jul 19, 2024 · Body · AZ

I have multiple spots of the pearl white paint peeling/flaking/bubbling off the vehicle in multiple places. 1st spot noticed was on the roof just behind the sunroof and the 2nd spot is the edge of the liftgate.

Used buying checklistWhat to check on a 2020 Kia Sedona before you buy

Compare the 2020 Kia Sedona

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Other model years

2002200320042005200620072008200920102011201220142015201620172018201920202021

Questions about the 2020 Kia Sedona

Is the 2020 Kia Sedona reliable?

Owners have filed 20 complaints about the 2020 Kia Sedona, fewer than a typical Sedona model year.

What is the 2020 Kia Sedona year score?

The 2020 Kia Sedona scores 94 out of 100 (good). The score compares it with the other model years of the Kia Sedona: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2020 Kia Sedona?

Body and structure, with 5 complaints. Next is engine (5).

How many recalls does the 2020 Kia Sedona have?

1 recall, covering electrical system.

What year does the Kia Sedona have the most body problems?

The Kia Sedona model years with the most body complaints are 2006 (41 complaints), 2008 (25 complaints) and 2016 (25 complaints).

What gas mileage does the 2020 Kia Sedona get?

Official estimates for the 2020 Kia Sedona range from 21 mpg combined. The most efficient version (3.3L 6-cyl, FWD) gets 18 city and 24 highway.

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