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.


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
70,000 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.

2004 Hyundai Sonata accessories - exterior problems

accessories - exterior problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Hyundai Sonata:

Unsubscribe any time. We don't sell/share your email.

2004 Hyundai Sonata Owner Comments

problem #1

Dec 092009

Sonata 4-cyl

  • 70,000 miles


The ac/heating electric [fan] control comes on when it wants to but will not activate when turned on. When taken to a mechanic on 3 occasions, it activates and remains on for days then stops and will not come on again. Mechanics do not want to work on it unless it does not work at all. Everyone wants to "investigate" and charge me accordingly but no one wants to tell me the actual problem. This had been going on for many months on my car, as well as other Hyundai models. The unresolved situation remains dangerous because of window fogging and lack of air flow through the vent system in the front and rear. Last winter a partially fogged window, while the fan was running, contributed to an accident during a very heavy rain storm.

- Millersville, MD, USA

Search for these popular complaint phrases...

Not what you are looking for?