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.


pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
6,379 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 engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2009 Hyundai Sonata:

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

2009 Hyundai Sonata Owner Comments

problem #3

Dec 112011


  • 18,941 miles


The contact owns a 2009 Hyundai Sonata. The contact stated that while driving 65 mph, the vehicle stalled twice. The vehicle was merged to the shoulder with the engine off for approximately 35 minutes before it was able to be restarted. There were no warning lights illuminated. The vehicle was taken to the dealer who inspected and test drove the vehicle but could not locate the problem. The manufacturer was notified and a claim was filed. The manufacturer advised that a representative would be calling within 24 hours. The failure mileage was 18,941.

- Coconut Creek, FL, USA

problem #2

Mar 312009


  • miles
The contact owns a 2009 Hyundai Sonata. While driving approximately 5 mph he heard a squealing noise in the front of the vehicle. The failure had been on going since 2009. The contact stated that the failure only happened when it was turned on for the first time each day and then began to function normally. The vehicle was taken to the dealer who test drove the vehicle and was unable to duplicate the failure. The vehicle was not repaired. The failure mileage was unknown and the current mileage was 20,000.

- Leesburg, FL, USA

problem #1

Sep 092008


  • 197 miles
New car was delivered to me with a major engine oil leak. Could have resulted in engine failure and loss of control of car. Car has been in dealers garage for 10 days with no repair yet made.

- Port St. Lucie, FL, USA

Not what you are looking for?