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.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
25,235 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.

2004 Hyundai Sonata brakes problems

brakes problem

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2004 Hyundai Sonata Owner Comments

problem #4

Nov 282010


  • 62,000 miles


The contact owns a 2004 Hyundai Sonata. As the contact approached a traffic light, he noticed that the brake pedal extended to the floorboard when depressed; he had to use the emergency brake to stop. The brakes squeaked and made a noise as if pressure had left the brakes. The vehicle had not been inspected or repaired. The manufacturer had not been notified. The failure mileage was approximately 62,000.

- Coatesville, IN, USA

problem #3

Jun 292009


  • 19,000 miles
Disc brake pad separation resulted in severe rotor wear and loss of brakes on all four wheels. Low mileage on vehicle, 19K, original brake pads. Replaced rotors and brake pads, old parts available.

- Effort, PA, USA

problem #2

Jul 012005

Sonata 6-cyl

  • 9,970 miles
Near accident report due to a possible brake lock up of the 2004 Hyundai Sonata. When the consumer attempted to change lanes, the vehicle swerved to the right, made a 360 degree turn and skidded to a stop on a grassy shoulder.

- Severna Park, MD, USA

problem #1

Sep 042005


  • 9,970 miles
While driving on September 4, 2005 on 1-95 2004 at 6 mph the Hyundai Sonata was involved in a near miss accident due to the brakes locking. The consumer's was in the middle lane and had decided to overtake the car ahead. The consumer moved to the left lane and noticed that the speed was more than 75 mph. The consumer stepped on the brakes to slow down and the vehicle swerved to the right, made a 360-degree turn, skidded, and mercifully stopped on the grassy shoulder. It was a miracle that no car bumped the consumer's vehicle during this episode. The consumer heard a popping sound and thought that one of the tires had blew out. The consumer got out of the vehicle to inspect the tires and saw skid burns. The consumer went back to the vehicle and tried to drive on the shoulder. The consumer then proceeded to drive on the highway again. On labor day, September 5, 2005 the consumer called the Hyundai dealer in alexandria, Virginia where the vehicle was purchased. The consumer talked to the salesman who sold them the vehicle last year. The consumer told him what happened and he suggested that the consumer call a Hyundai service outlet for a service check-up appointment. The consumer called bob bell Hyundai in glen burnie for a service appointment and the recording said they would call him within the hour. This was the second time that the brakes locked. The first time was in July 2005 while driving on ritchie highway near pasadena, Maryland at 60 mph the traffic light at the whites road intersection turned red consumer stepped on the brakes a little hard and the vehicle lurched forward and swerved to the right. That was the first time I that the consumer suspected something might be wrong with the brakes.

- Severna Park, MD, USA

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