Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
90,571 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.

2003 Hyundai Sonata fuel system problems

fuel system problem

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2003 Hyundai Sonata Owner Comments

problem #7

Sep 152011

Sonata 6-cyl Diesel

  • 148,000 miles


I was informed this model has a safety valve in the gas filler neck that will prevent the gas from leaking out should the vehicle overturn. My valve must be stuck in the partially open position since I can only fill the gas tank every one-third of a gallon before the gas dispenser shuts off. Then I have to wait 10 seconds for it to seep into the tank before I can continue to pump. Filling my 17 gal tank takes about 10-12 minutes with most of the time just waiting for the gas to seep into the tank. Hyundai wants over $600 to repair. Unacceptable since it appears to be a design flaw.

- Longwood, FL, USA

problem #6

Nov 052010

Sonata 6-cyl

  • miles
When trying to fuel vehicle the nozzle will click off at 1 or 2 gallons. I have to repeatedly take the nozzle out and keep trying to refuel. The vehicle was taken to the dealer in which they dropped the gas tank and did something. I picked the vehicle up and went to refuel and the same problem still exist. Just out of money. I see this is an on-going problem with this vehicle. There should be a recall.

- Rochester, NY, USA

problem #5

Aug 152011


  • 104,000 miles
Fueling problems. On near empty fuel tank the fueling hose will auto shut off after 1 to 2 gallons. I have to repeat start the fueling and it automatically shuts off after entering a gallon or two. Have to gauge when tank is near full which can cause a fuel spill if overestimating and not being fill if underestimating. It seems to happen at pumps that have the newer nozzle. This is the first summer for this problem and it may be caused by the heat with the newer nozzles..

- Freeland, MD, USA

problem #4

Jul 012011


  • 92,000 miles


The contact owns a 2003 Hyundai Sonata. The contact stated that while refueling, fuel would spill out from the filler neck. The failure would occur even if the fuel tank was completely empty. The vehicle was taken to an authorized dealer where the contact was informed that the fuel lines were too small to allow the fuel to enter the fuel tank. As a result, the fuel system would need to be rebuilt. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 92,000 and the current mileage was 94,000.

- Salisbury , MD, USA

problem #3

May 012011


  • 160,000 miles
The contact owns a 2003 Hyundai Sonata. The contact stated that when attempting to refuel the vehicle, gasoline would spew back out from the filer neck and onto the ground. She was able to fuel small amounts at a given time however, it would take more than thirty minutes to fill the fuel tank to capacity. The vehicle was taken to the dealer in 2005 where they performed repairs under NHTSA campaign id number: 04V178000 (fuel system, gasoline:storage:tank assembly) however, the failure persisted. The manufacturer was advised of the failure and informed the contact to take the vehicle to the local dealer for diagnostic testing. The vehicle was not further repaired. The current and failure mileages were approximately 160,000.

- Plymouth, MA, USA

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problem #2

Nov 152010


  • 130,000 miles
One day, while fueling my 2003 Hyundai Sonata, the pump clicked off after 1 gallon. From then on, it wouldn't let me fill more than 1 or 2 gallons without clicking off. Since that day, this problem occurs every time I refill and every time my tank is near empty or half empty, so I know that's not the issue.

- Bristol, PA, USA

problem #1

Nov 112009


  • miles
I own a 2003 Sonata the engine light came on, I have an emission leak the machine says. I need help has this happened to any one else. Also my gas problems, when putting gas in my car the gas cap clicks as if the tank was full when talking to local dealer all they want to do is quote prices!!!!!!!!! no explanation of why these thing are happening.

- Cocoa , FL, USA

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