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really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
47,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Hyundai Sonata fuel system problems

fuel system problem

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2009 Hyundai Sonata Owner Comments

problem #8

Dec 012014

Sonata 4-cyl

  • miles


2009 Hyundai Sonata fuel sending unit. The consumer stated it has been three month and the smell of gasoline/fumes is still present inside and outside of the car, mostly at the rear passenger side where there was a gasoline spill, after the problem was supposedly fixed. About a month ago, the vehicle stopped running, while the consumer was driving. It all started, when the consumers husband took the vehicle to the dealer, because the check engine light had illuminated and the gas gauge was not registering. The mechanic cleared the engine light and stated the fuel sending unit needed to be replaced. The fuel sending unit was replaced for a second time, because the first one was defective. However, the gas gauge still didn't work. Immediately after the consumer left the shop, she stopped for gas and while pumping gas started pouring out from the passenger side onto the ground. The consumer stated the vehicle was taken to the dealer three time, for the same problem. The consumer stated ever since the dealer re-installed the gasket, the same fuel sending unit continued to leak gas.

- Cleveland, GA, USA

problem #7

Jan 012010

Sonata 4-cyl

  • 20,000 miles
When filling the vehicle with gas it always spills out as if something is blocking the input of gasoline. I would consider this a hazard/safety issue. Many gas station attendants have told me this is a problem they see with most Hyundai Sonatas possibly of the same year? I've contacted Hyundai and they want nothing to do with this. They want you to jump through hoops to have it repaired.

- Secane, PA, USA

problem #6

May 012013

Sonata 4-cyl

  • 80,000 miles
The check engine light came on. When this happened, it became very difficult to pump gas. When I am pumping the gas it backs up and splashes back out the opening. I have to pump very slowly and a little at the time. At times it can take over 15 minutes must to get 10 gallon. I've run into other people at the pump that have told me that they had the experience.

- Lynbrook, NY, USA

problem #5

May 082012

Sonata 4-cyl

  • 73,000 miles


The contact owns a 2009 Hyundai Sonata. The contact stated that the chrome on the door latch peeled off and caused lacerations to her fingers. The contact took the vehicle to the dealer and was told that the door latch was cosmetic. The vehicle was not repaired. In addition, the brake lamp switch failed and the fuel cap release also failed. The contact took the vehicle to the dealer and was told that they could not find an issue with the vehicle. The vehicle had not been repaired. The failure mileage was unknown and the current mileage was 73,000.

- Deltona, FL, USA

problem #4

Jun 122013

Sonata 6-cyl

  • 50,000 miles
Some times when starting the car with my foot on the brake the rpms go up to about 1200 and then down to 800 rpms. When my foot is removed from the brake the car wants to accelerate and go on its own often. While stoped at a stop sign or stoped with my foot on the brake the car will lurch forward when released, some times spinning the tires. It is progressively getting worse after returning from a 5000 mile trip in June, 2013. The car purchased new and has a automatic transmission with aprox. 65000 miles total on the car. This is a accident waiting to happen and should have a recall.

- Big Lake, MN, USA

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problem #3

Nov 162011


  • 92,000 miles
The contact owns a 2009 Hyundai Sonata. The contact was refueling the vehicle when fuel started to escape the filler tank and splash on the contact. The contact did not take the vehicle to the dealer for diagnostics or repairs. The manufacturer was not made aware of the failure. The failure mileage was 92,000.

- Woodbury , CT, USA

problem #2

Nov 122009

Sonata 4-cyl

  • 50,000 miles
There has been an odor of gasoline entering the passenger cabin of the vehicle. I noticed it is "worse" when I fill the vehicle with gas but the problem occurs more frequently than that. I do not top off the tank. The pump shuts off when full, and I stop pumping. This odor starts when sitting at a stoplight and stays in the cabin until I'm moving again. I thought it only started when I came to a stop at a light and sat for a couple of minutes, however when I was driving home at slow speeds (15-25 mph) continuous, the smell was constant. Lately it is so bad I have to roll down the window. One time, I almost pulled over at the roadside, and was going to get out of my car to get fresh air, but there was too much traffic. There are no fuel leaks that I can find. No standing fuel under the car after I park. It has done this most times I've driven the car to more or less degrees, but not everytime - most times. I have not been to a dealer yet, but I will be taking it in to have it checked. Apparently there are quite a few other owners of this car who have noticed this same thing based on a Hyundai internet forums. But I did not have this problem until 2010. I can't imagine that this is not a safety issue with the gas odor. Not only are passengers having to inhale these fumes, but I'm wondering if it could be a potential source of fire/explosion. I'm not so sure these are just very few, isolated incidents. I see a problem starting to emerge. Certainly, I will not drive a car that I have to smell gas fumes nearly every time I drive it, not even to mention the profound safety problem this may cause.

- Rockford, IL, USA

problem #1

Feb 182010


  • 11,000 miles
1) was making a right turn into a parking lot. There was a slight incline. There was a quarter of a tank of gas in the car. 2) the engine appeared to turn off, however the electronics never turned off. Power steering was no longer available once the engine stopped running. 3) I attempted to restart the car, but it wouldn't start. You could hear the engine trying to start. I placed the car in neutral and pushed it into a parking space. About 5 minutes later I successfully restarted the car. I had the car towed to the dealership and they could not diagnose the problem or detect that anything had occurred.

- Indianapolis, IN, USA

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