2021 Hyundai Sonata used buying checklist
What to check on a used 2021 Hyundai Sonata before you pay, based on what owners report, its recalls and the repairs the maker covers. Print it and take it to the test drive.
Test for the problems owners report most
The most reported problems of this model year, with what to look for on the test drive.
- Check engine light17 owner complaints, usually around 47,000 miles
Start the engine cold and listen for knocking or ticking. Check for warning lights, oil leaks and a low oil level, and ask how often oil had to be topped up.
- Sudden loss of power11 owner complaints
Start the engine cold and listen for knocking or ticking. Check for warning lights, oil leaks and a low oil level, and ask how often oil had to be topped up.
- Jerking or lurching8 owner complaints
On a test drive from a cold start, check that shifts are smooth, with no slipping, delays, shudder or jerking at low speed. Ask for transmission fluid service records.
Make sure these recalls were done
Recall repairs are free at any dealer of the brand. Ask the seller for proof, or have a dealer check the VIN.
- Fuel system, gasolineRecall number 25V796000, Nov 17, 2025
- Power trainRecall number 22V746000, Oct 6, 2022
- VisibilityRecall number 21V00M000, Dec 28, 2021
- Fuel system, gasolineRecall number 21V524000, Jul 9, 2021
Service bulletins worth asking about
Repair instructions the maker sent to dealers for known problems. Ask whether any of these repairs were done.
- Higher-than-expected engine oil consumptionOct 8, 2026
- Higher-than-expected engine oil consumptionOct 7, 2026
- Difficulty starting in cold weatherApr 18, 2026
Before you pay
- Decode the VIN and make sure it matches the title, the registration and the car itself.
- Get a vehicle history report to check for accidents, salvage or flood titles and odometer problems.
- Ask for service records, especially oil changes and any transmission fluid service.
- Start the car from cold, and drive it at city and highway speeds for at least 20 minutes.
- Have an independent mechanic inspect the car before you sign anything.
See every 2021 Hyundai Sonata problem
VIN decoder
See the problems and recalls for an exact car
Buying a used 2021 Hyundai Sonata?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history