NHTSA lists 1 safety recall and 9 owner complaints for the 2018 Hyundai Sonata Hybrid. Most complaints involve engine (5) and electrical system (2). The EPA rates it 41–42 mpg combined, and NHTSA gives it 5 stars overall.
Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Sonata, 2016-2018 Sonata Hybrid, 2018-2020 Accent, and 2016-2017 Azera vehicles. The trunk latch may become damaged, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Sonata Hybrid model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2011 | 96 |
| 2012 | 155 |
| 2013 | 108 |
| 2014 | 29 |
| 2015 | 54 |
| 2016 | 133 |
| 2017 | 81 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 16 |
| 2021 | 55 |
| 2022 | 19 |
| 2023 | 15 |
| 2024 | 9 |
| 2025 | 11 |
| 2026 | 3 |
“I was driving on the freeway and my car lost all power. My indicator dash board flashed lights and a loud beeping sound. The warning lights flashed to check my hybrid system and turn engine off, HEV. My car immediately lost power and turned off. I was on the freeway, I almost got into an accident, cars were honking at me. My vehicle was towed by my insurance company. I receieved a phone call from the service advisor today, he informed me that I need an electical water pump and the cost quoted to me is $1908.00. When I complained to the advisor he told me that water pumps only last 3-5 years. I told him that my previous car was a 2013 Sonata and sold it with 100,000 miles and I never had water pump issues. My online research discovered that this has been a recurrent issue with 2018 Sonata's.”
“TL* THE CONTACT OWNS A 2018 HYUNDAI SONATA HYBRID. WHILE DRIVING VARIOUS SPEEDS, THE MESSAGE "HYBRID SYSTEM FAILURE" SUDDENLY DISPLAYED AND THE VEHICLE LOST POWER AND STALLED. THE VEHICLE WAS TOWED TO CAPITAL HYUNDAI (2820 EASTERN BLVD, MONTGOMERY, AL) TO BE DIAGNOSED, BUT NO FAILURE WAS FOUND. THE VEHICLE WAS NOT REPAIRED. AFTER RETRIEVING THE VEHICLE FROM THE DEALER, THE FAILURE CONTINUED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED CASE NUMBER: 16248749. THE FAILURE MILEAGE WAS 19,000. *BF THE CONSUMER STATED THAT THE FIRST FAILURE OCCURED ON OCTOBER 31, 2019 AND THE SECOND OCCURRED ON OCTOBER 7TH, 2020. BOTH TIMES, THE MANUFACTURER WAS NOTIFIED, HOWEVER THE PROBLEM CONTINUES. *AS”
“Driving on Interstate 10 westbound at about 0700. Clear day. No adjacent vehicles. The frontal crash avoidance alert suddenly went off and automated emergency braking activated as I approached an underpass. There were some slightly harsh shadows, but not the worst I have seen and I drive this segment every day. Entire event was very short. No injury or other event occurred.”
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 |
|---|---|---|---|---|---|
| Sonata Hybrid SE Auto (AM6), 4 cyl, 2.0 L · Front-Wheel Drive | 40 | 46 | 42 | $1,550 | 212 |
| Sonata Hybrid Auto (AM6), 4 cyl, 2.0 L · Front-Wheel Drive | 39 | 44 | 41 | $1,550 | 217 |
| 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 29, 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 9 complaints with NHTSA. The most-cited components are engine (5), electrical system (2), forward collision avoidance (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2018 Hyundai Sonata Hybrid at 41–42 mpg combined, depending on engine and drivetrain (2 versions rated).
NHTSA's New Car Assessment Program gives the 2018 Hyundai Sonata Hybrid 5 out of 5 stars overall.