Safety Score
91
Safe
Recalls
0
Complaints
49
NCAP Stars
—
Recalls (0)
No recalls found for the 2021 Hyundai Sonata Hybrid.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2026-01-26 | ENGINE AND ENGINE COOLING | No | 0 | See attached document for complaint. |
| 2025-07-19 | ELECTRICAL SYSTEM | No | 0 | This is on my 2021 Hyundai Sonata Hybrid Limited - for the 7th time the vehicle has been completely dead and unresponsi… |
| 2025-06-29 | ELECTRICAL SYSTEM | No | 0 | Every day the car is dead, have to take the manual key out pop door cover off unlock car manually push the 12v reset bu… |
| 2025-05-27 | ELECTRICAL SYSTEM | No | 0 | 12v battery dying randomly |
| 2025-04-15 | ENGINE | No | 0 | Air flow check engine light alerted and source was faulty fuel injector which required replacement of 4 fuel injectors. |
| 2025-04-10 | ELECTRICAL SYSTEM | No | 0 | Owned car since 09/2024 with 64K miles. Battery system (12V/hybrid system) has shut down and died 47 times since 04/202… |
| 2025-02-12 | ENGINE | No | 0 | Overheated engine alarm came on while I was on the freeway on a rainy day. Vehicle was towed to Hyundai dealership in … |
| 2025-01-22 | ENGINE | No | 0 | Coolant system leaks in to the engine or exhaust system, which is evident in white smoke exhaust and coolant level drop… |
| 2025-01-19 | UNKNOWN OR OTHER | No | 0 | My 2021 Hyundai Sonata Hybrid seems to be leaking coolant into the exhaust system. Various reports online indicate that… |
| 2025-01-13 | ENGINE | No | 0 | EHRS Coolant Leak- problem started in [XXX] when engine overheated. The weather in Michigan in inclement and being str… |
| 2024-12-05 | ELECTRICAL SYSTEM | No | 0 | the car randomly goes into dead or limp mode and unable to start. need to jump start it to come alive. No codes shown o… |
| 2024-11-05 | UNKNOWN OR OTHER | No | 0 | On three separate occasions, while going very fast (60-78 mph), the automatic emergency braking system turns on. The wa… |
| 2024-09-28 | ELECTRICAL SYSTEM | No | 0 | When the vehicle is turned off the 12v Lithium battery will die. This is a intermittent occurrence that has happened ap… |
| 2024-09-23 | ELECTRICAL SYSTEM | No | 0 | The contact owns a 2021 Hyundai Sonata Hybrid. The contact stated that the key fob was inoperable and after using the k… |
| 2024-09-16 | ELECTRICAL SYSTEM | No | 0 | The BMS module within my cars hybrid system failed causing a parasitic drain on the hybrid battery. The dealership wher… |
| 2024-08-27 | ENGINE | No | 0 | On three separate occasions over the last two months, while driving, an alert comes on that says check hybrid system th… |
| 2024-08-12 | UNKNOWN OR OTHER | No | 0 | The car randomly loses power and stalls on the expressway and it states that something is wrong with the hybrid system |
| 2024-07-09 | ELECTRICAL SYSTEM | No | 0 | What component or system failed or malfunctioned, and is it available for inspection upon request? RANDOM TOTAL ELECTRI… |
| 2024-06-28 | ELECTRICAL SYSTEM | No | 0 | Randomly the car will get a message when driving starting “ Check Hybrid system. Turn engine Off” and the car isn’t abl… |
| 2024-06-16 | ENGINE | No | 0 | Driving 70 mph, warning lights and alarms "Hybrid System Failure" "Vehicle shutting down" and then it does. No lights, … |
| 2024-06-11 | ELECTRICAL SYSTEM | No | 0 | Driving on the freeway when we got a notice on the dash that we needed to pull over and the vehicle shut down due to a … |
| 2024-06-03 | ELECTRICAL SYSTEM | No | 0 | My car will power off randomly, or will seem as though there is no power. I have to revert back to the manual key to en… |
| 2024-05-21 | ELECTRICAL SYSTEM | No | 0 | Integrated 12v battery in hybrid system keep draining out. I have to manually open the car and reset it every time in o… |
| 2024-04-04 | ELECTRICAL SYSTEM | No | 0 | My battery has died twice, so dead that I can’t even unlock to car with the remote. The first time I had it jumped and … |
| 2024-03-24 | ELECTRICAL SYSTEM | No | 0 | The Battery dies randomly and requires the physical key to unlock the door. It is a hybrid, so it has a 12 volt batter… |
| 2024-03-15 | ELECTRICAL SYSTEM | No | 0 | The vehicle, after parking, is nonresponsive to the key fob, nor will it start. This can happen at anytime and anywhere… |
| 2024-03-06 | ELECTRICAL SYSTEM | No | 0 | The Battery dies randomly (like I have to open the car with they physical key to access the car dead) there isn't a pat… |
| 2024-03-05 | UNKNOWN OR OTHER | No | 0 | Integrated 12V battery dies with no warning and requires manual keyed process to get in to the vehicle. Once inside, t… |
| 2024-01-09 | ENGINE | No | 0 | Initially had loss of cabin heat. Later, vehicle randomly overheated. Repair shop replaced EGR due to finding confida… |
| 2023-12-26 | ENGINE | No | 0 | Antifreeze is coming out of the exhaust. Heater is only blowing cold air. Repair shop said it is a common problem wit… |
| 2023-12-20 | ENGINE | No | 0 | Hyundai 2021 Sonata Hybrid. Blown head gasket. Reported 1,000 miles after warranty expired. Car was in the shop for … |
| 2023-12-18 | ENGINE | No | 0 | My vehicle's heat stopped working suddenly. A short while later, I received and overheat warning for the engine. I ha… |
| 2023-11-25 | ENGINE | No | 0 | While driving, engine alerted that it was overheating. Pulled over and coolant was very low, so I refilled it and then … |
| 2023-10-10 | FUEL/PROPULSION SYSTEM | No | 0 | Battery keeps dying randomly. Approximately once every other week and I drive 12k miles a year… dealership reassures me… |
| 2023-09-26 | ENGINE | No | 0 | Discovered that I had no engine heat to use in the cabin with cooler outside temps. Checked coolant tank. Was nearly bo… |
| 2023-07-31 | ENGINE | No | 0 | This car is a Hybrid The car has a 12V battery reset system which stops the 12V battery from draining to zero voltage. … |
| 2023-07-10 | ELECTRICAL SYSTEM | No | 0 | My 2021 Sonata Hybrid Limited has been in the shop for over 3 months. At least 4 times while driving on city streets, I… |
| 2023-06-15 | ENGINE | No | 0 | the coolant reservoir has been dropping showing levels below min even after topping it off |
| 2023-04-12 | ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE) | No | 0 | The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, he received an a… |
| 2023-04-10 | POWER TRAIN | No | 0 | When I arrived in the parking lot and selected the R (reverse), the vehicle stayed in the D (Drive) although that it wa… |
| 2023-03-14 | ENGINE | No | 0 | The cabin heater started blowing cold air in February. One shop said the car was low on coolant and topped it off. I ma… |
| 2023-02-20 | ENGINE | No | 0 | Coolant leak acting like blown head gasket. Coolant was leaking into the exhaust system. Defective EHRS system |
| 2023-02-01 | ELECTRICAL SYSTEM | No | 0 | the car keeps randomly dying (not during driving "yet") it happens at least once or twice a week of where i go to ride … |
| 2023-01-26 | ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SUMP/TANK:DRAIN PLUG | No | 0 | Engine oil plug backed out while driving causing loss of all engine oil in the mountains. Drive time was one hour when … |
| 2022-12-09 | ENGINE | No | 0 | Very loud car alarms sounded, e.g., it sounded like a something like a red alert in an old Star Trek episode. warning l… |
| 2022-11-21 | FUEL/PROPULSION SYSTEM | No | 0 | Incident sounds similar to those experienced with the dual clutch transmissions. November 2022, all of the vehicle warn… |
| 2022-09-30 | ELECTRICAL SYSTEM | No | 0 | The vehicle has been turning completely off after use for over a year now. At first it would happen every now and then … |
| 2022-08-17 | FORWARD COLLISION AVOIDANCE: WARNINGS | Yes | 2 | The forward collision warning, automatic emergency braking and adaptive cruise control failed as the first 2 activated … |
| 2021-10-06 | ELECTRICAL SYSTEM | No | 0 | On Wednesday, October 6th, I was driving full speed (65mph) on a major highway. Multiple lights on the dashboard came o… |