Hyundai Sonata Hybrid won't start problems

Filed Aug 17, 2025 · Electrical · ND

Vehicle will not start. This is the fourth incident where vehicle will not start. It has had the software update, battery and voltage regulator replaced in the summer of 2025. In Aug of 2025, vehicle will not start with jump or use of 12v battery in vehicle.

Filed Apr 16, 2025 · Electrical · AZ

Purchased vehicle on March 5, 2025 from a dealer. At the time it had approximately 20,000 miles. Within days of purchase, the car would not start even after pushing the battery reset button. Eventually, it would restart, but the time it took was considerable. Took the car to the Hyundai dealer near me and discovered that it had been with them for two months prior to purchase for the same problem. They have replaced the 12 V battery and possibly the hybrid battery, but now after owning it for about six weeks, it is giving me a message that there is a problem with the hybrid system and I should stop driving immediately. It is now back at the dealer. They can’t seem to duplicate the problem and I don’t feel safe driving the car because I don’t know if and when I’m going to get to my destination.

Filed Dec 1, 2024 · AL

My vehicle is in the shop now and will be due to 12volt battery charging system failure. I have taken the vehicle to the shop 4 times now because vehicle will not start unless you hit the reset 12volt button. The dealership told me that they were surprised that I was able to start the vehicle. I was told that it is the federal safety agency Campaign # 24V868000. This vehicle is not included in this campaign number but it should be. Hyundai needs to include this make and model to the recall so other drivers don't have the same issue and so that they don't find themselves stranded.

Filed Nov 11, 2024 · FL

My 2017 Hyundai Santa hybrid limited it all started with 11 icons appeared on the dash took it to Hyundai dealership Gainesville to be fixed in July of 2024 dropped it off Wednesday they emailed me with a price of 1563.70 I okay it to be fixed. I picked it up that following Saturday no sooner after leaving halfway home the check engine light came on took it back the following Monday they pulled it in the shop no more than 15 minutes later they pulled it out said they fixed it said if it should happen again to bring it back shortly after leaving check engine light came on again took it back to them and fixed it left check engine light came on again so I took it to Tallahassee Hyundai dealership they changed cabin air filter and engine filter we left the check engine light came on again so we took it back to them again and they found nothing . Then the check engine light was still on then the car wouldn't start so I had to pay to have it towed to Hyundai dealership of Gainesville again told them now the car won't start and it's been there since October 20 2024 spoke to them many times I still haven't gotten any one that can seem to fix my car they don't return phone calls just give me the run around it's my only car I have never heard of a dealership that can't fix there own car they sell . I'm getting nobody that is willing to help me and the car is not paid for im so upset is this the kind of business you provide to your customer's.

Filed Nov 16, 2021 · TX

While driving all the dashboard lights come on and a beeping noise starts. On my dash is says "hybrid check system warning" Pull over safely and do not drive. This problem has sporadically been happening, but it seems to be more frequent now. As of this moment it has been on the side of the road due to this problem. It usually starts after about 10 minutes, but this time it will not start. When I Googled this problem, I saw this type of problem goes back to 2012 when the car came out to buy and it has affected numerous people with this year model car. Everytime I take it to my local Hyundai dealership of course they tell me nothing is wrong with it. Well apparently there is something wrong or it would not be on the side of the road not starting.

Filed Sep 13, 2020 · Electrical · 50,000 miles · CA

Numerous posts and this has occurred to me numerous times within the past 2 months. After driving vehicle on the freeway, and getting off to get gas or stop to get groceries or anything, when the vehicle is turned off, check hybrid system light comes on and vehicle is disabled. Will not start or attempt to start for at least 20 minutes. When vehicle starts back up the check engine light comes on and stays on until the vehicle is turned off again then the cel goes away. Sounds like numerous people are having this issue, I however have been lucky that it hasn't shut off while driving on the freeway, sounds like many other people it has. There needs to be a recall or the car be labeled as lemon or something.

Filed Jul 29, 2020 · Engine · 104,000 miles · CA

At around 104k miles the engine begins knocking and heavily vibrating. Time to time the care will not start and say "check hybrid battery" and I have to leave it off for about 10 mins before it starts working again.

Filed Feb 19, 2020 · Electrical, Engine · 70 miles · NC

After filling tank for long road trips the car does not start and the check hev hybrid system light comes on.

Filed Mar 28, 2019 · Engine · 122,400 miles · FL

While driving home, I heard a muffled knocking noise coming from engine when accelerating. At the next traffic light, I waited for the light to change, and when I started moving I realized the engine did not start from the hybrid. As I dangerously maneuvered the car across the right lane, I was able to pull over to a safe spot and the warning chime came on saying I had low voltage in hybrid battery. Had car towed home and then to hyudai dealer. They notified me that the engine was seized due to poor maintenance, which was ridiculous. Oil has always been changed by me or a regular garage. After viewing other comments by people who had the same exact problem I realized that this was apparently an ongoing problem with the sonata hybrid engine. Still trying to get dealer to replace engine.

Filed Dec 2, 2018 · Electrical · 87,000 miles · AL

Takata recall: I have a 2012 hyundai sonata 2.0t se and my car stopped in the middle of the road with no warning and would not start back. Now my eps, oil, mil, battery light ate on and car will not crank. I was driving up troy highway in montgomery al when my car begin to slow down and cut off. It did make a clunk noise before it shut off.. There wasn't any fire but engine will not start and just had oil change on friday.