Electrical system: alternator
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.
NHTSA lists 1 safety recall and 20 owner complaints for the 2020 Kia Sedona. Most complaints involve structure (5) and engine (5). The EPA rates it 21 mpg combined, and NHTSA gives it 5 stars overall.
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.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Sedona model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2002 | 250 |
| 2003 | 200 |
| 2004 | 213 |
| 2005 | 185 |
| 2006 | 385 |
| 2007 | 157 |
| 2008 | 170 |
| 2009 | 48 |
| 2010 | 32 |
| 2011 | 65 |
| 2012 | 108 |
| 2014 | 39 |
| 2015 | 140 |
| 2016 | 297 |
| 2017 | 134 |
| 2018 | 49 |
| 2019 | 39 |
| 2020 | 20 |
| 2021 | 10 |
“Paint delaminating due to latent defects.”
“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…”
“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.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Sedona Auto (S8), 6 cyl, 3.3 L · Front-Wheel Drive | 18 | 24 | 21 | $3,050 | 436 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Oct 31, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 20 complaints with NHTSA. The most-cited components are structure (5), engine (5), electrical system (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2020 Kia Sedona at 21 mpg combined, depending on engine and drivetrain (1 version rated).
NHTSA's New Car Assessment Program gives the 2020 Kia Sedona 5 out of 5 stars overall.