Most common 2020 Kia Sedona problems
Share of the 20 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Kia Sedona complaints by model year
Best Sedona years: 2010, 2021, 2014. Years to avoid: 2006, 2016, 2002, 2004. Compare all years →
2020 Kia Sedona recalls (1)
Electrical system › Alternator/generator/regulator
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.
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.
What 2020 Kia Sedona owners say
Engine & cooling
The contact owns a 2020 Kia Sedona. The contact stated while driving 40-45 MPH, the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed, the headlights and taillights became inoperable. The contact also stated that the oil level was low after checking the dipstick. The driver's side window was stuck in the down position. The contact depressed the window button, but the window failed to roll up. The vehicle was taken to an independent mechanic, and the contact was informed that there was a leak in the trans axle boot, and the 02 sensor and trans axle boot were replaced. The vehicle was taken to the local dealer, where it was diagnosed that the headlights and taillights needed to be replaced. The dealer performed an oil pressure test, which indicated that the oil level was a 1/2 quart low. …
The contact owns a 2020 Kia Sedona. The contact stated while attempting to start the vehicle in hot temperatures, the vehicle failed to start immediately. After several attempts, the vehicle was able to be started and seemed to return to normal functionality. The contact stated that the failure had become a regular occurrence during the summer months. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 22,000.
Body & structure
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.
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.
Electrical system
The contact owns a 2020 Kia Sedona. The contact stated while driving 40-45 MPH, the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed, the headlights and taillights became inoperable. The contact also stated that the oil level was low after checking the dipstick. The driver's side window was stuck in the down position. The contact depressed the window button, but the window failed to roll up. The vehicle was taken to an independent mechanic, and the contact was informed that there was a leak in the trans axle boot, and the 02 sensor and trans axle boot were replaced. The vehicle was taken to the local dealer, where it was diagnosed that the headlights and taillights needed to be replaced. The dealer performed an oil pressure test, which indicated that the oil level was a 1/2 quart low. …
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.
2020 Kia Sedona engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.3L 6-cyl | 8-speed automatic | FWD | 18 / 24 / 21 |
EPA ratings. Class: Minivan.
Frequently asked questions
Is the 2020 Kia Sedona a good car?
Based on 20 owner complaints filed with NHTSA, the 2020 Sedona rates better than average: 66% fewer complaints than a typical year of the Sedona at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2020 Kia Sedona?
The engine & cooling — 5 complaints, 25% of all complaints for this model year. Next are the body & structure (5) and electrical system (3).
How many recalls does the 2020 Kia Sedona have?
There is 1 recall for the 2020 Kia Sedona, the most recent from July 8, 2020 (alternator/generator/regulator). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Kia Sedona?
The best years by complaints, compared at the same age, are 2010, 2021 and 2014. Years to avoid or approach with caution: 2006, 2016, 2002 and 2004. See the full Kia Sedona years comparison.
At what mileage do 2020 Kia Sedona problems happen?
The median mileage reported in complaints is about 65,000 miles; 40% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.