Hyundai Sonata Complaints (2006)

1,047 consumer complaints on file.

#11706449December 22, 2025
ENGINE, ENGINE AND ENGINE COOLING
The contact owns a 2006 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. No warning light was illuminated. The contact was able to pull over to the shoulder of the roadway and noticed that engine oil was leaking onto the ground and the coolant level was abnormally low. The contact stated that the vehicle failed to restart and was towed to a local independent mechanic, where it was diagnosed with a valve cover leak. The vehicle was repaired at the owner's expense; however, the failure reoccurred. The local dealer was not contacted. In addition, the contact stated that several other unknown repairs were made; however, the failure reoccurred. The contact related the failure to an unknown NHTSA Campaign; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 112,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663025May 25, 2025
ENGINE, POWER TRAIN
I am filing this complaint regarding a serious engine issue with my 2006 Hyundai Sonata equipped with a 2.4L GDI engine. My vehicle experienced [engine knocking, stalling, and then seized up indicating complete Engine failure] without warning, posing a potential safety hazard while driving. The issue appears to be identical to the known manufacturing defects that Hyundai has acknowledged in its recall of 2013–2014 Sonata models with the same engine Class Type. Although my vehicle is not currently included in the official recall “ SONATA ENGINE RECALL CAMPAIGN it contains the Theta II MPI Engine which constitutes and Further solidifies proof of the ongoing Manufacturing Defects of Theta Model Engine design and exhibits the same symptoms of sudden engine failure. This raises concerns that the defect may affect a broader range of model years than Hyundai has acknowledged. I urge NHTSA to investigate this issue and determine whether the scope of the current recall should be expanded to include earlier model years such as 2006. The defect creates a significant safety risk to drivers and passengers, and Hyundai should be held accountable for all affected vehicles—not just those produced within a narrow window.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659574May 7, 2025
SUSPENSION, STEERING
There is a recall for the rear lower control arms for the 2006 Hyundai sonata getting rusty and not performing. My car was taken in for an alignment and the mechanic said he isn’t able to make the toe match up to be in good driving standards. I tried reaching out to a Hyundai dealership and they checked the VIN and said they couldn’t do anything about it because my car isn’t in a certain part of the United States. If I don’t get this fixed soon the mechanic said my when could fall out of alignment and cause some serious damage to me or someone else.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11617849October 3, 2024
SUSPENSION
The contact owns a 2006 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the contact heard a loud bang and scraping sound coming from the vehicle. The ABS and check engine warning lights were illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the control arm and suspension had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made not aware of the failure. The failure mileage was approximately 176,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607317August 8, 2024
AIR BAGS
The contact owns a 2006 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was not taken to the dealer or an independent mechanic. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 08V161000 (Air Bags); however, the VIN was not included. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 140,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11581825April 8, 2024
SUSPENSION, UNKNOWN OR OTHER, SERVICE BRAKES
I have a 06 sonata 2.4l that had rear control arms rotted out plus the subframe. And my esc light is on not really sure what to wit that. But my car is down now due to rear control arms needed replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11573621February 23, 2024
SUSPENSION
The contact owns a 2006 Hyundai Sonata. The contact stated that while making a turn at 10-15 MPH, the contact heard a loud bang and scraping sound coming from the vehicle. The contact pulled over and discovered that the rear crossmember had detached. The vehicle was towed to an independent mechanic, who diagnosed that the lower and upper control arm bolts were severely corroded; however, the contact was not yet informed of what needed to be replaced. The vehicle was not repaired. The vehicle had previously been repaired under NHTSA Campaign Number: 13V354000 (Suspension); however, the failure occurred. The manufacturer was made aware of the failure. The failure mileage was approximately 97,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11562819December 31, 2023
SUSPENSION
Rear lower control arm snapped
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11549752October 13, 2023
SERVICE BRAKES, HYDRAULIC
The contact owns a 2006 Hyundai Sonata. The contact stated that while his wife was driving at an undisclosed speed, the ABS warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that water had entered the ABS module and caused an electrical short. The contact was informed that the vehicle was included in NHTSA Campaign Number: 18V026000 (Service Brakes, Hydraulic). The vehicle was not repaired. An undisclosed dealer and the manufacturer were notified of the failure and confirmed that the VIN was not included in a recall. The failure mileage was approximately 70,000. The VIN was unavailable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529847June 30, 2023
SUSPENSION
The rear suspension became corroded and one of the coils or bars broke off while driving. After the coil from the suspension broke off, it punctured a tire, which blew while driving. Thankfully, I had just exited the interstate, otherwise this would've happened at high speeds. This is a known issue that has previously been reported in a recall (113). The vehicle is registered in Ohio and has been since 2014.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526092June 8, 2023
ENGINE, SUSPENSION
UNKNOWN
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11524519May 30, 2023
VEHICLE SPEED CONTROL
On 5/30/23 while in traffic I pressed the brake to slow down and the car kept moving forward. I pressed the brake all the way down and I was still unable to stop the car from accelerating. I rear-ended the vehicle in front of me. My car is currently being inspected by a mechanic that my insurance company recommended.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11523016May 20, 2023
ENGINE, UNKNOWN OR OTHER
MY SON WAS DRIVING AND HEARD LOUD POP AND SAW FLAMES COMING FROM HOOD FIRE DEPARTMENT PUT OUT FIRE CAR IS COMPLETE LOSS
Crash:
No
Fire:
Yes
Injuries:
2
Deaths:
0
#11520229May 3, 2023
AIR BAGS
The contact owns a 2006 Hyundai Sonata. The contact stated that the air bag warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The dealer was notified of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 48,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11510743March 8, 2023
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
The contact owns a 2006 Hyundai Sonata. The contact stated that while driving into the driveway and depressing the brake pedal, the brake pedal went to the floorboard. The failure caused the vehicle to roll to a stop instead of stopping immediately. The brake failure warning light was illuminated. The contact, who is a certified mechanic, inspected the vehicle and found that the rear brake lines and the cross over line was completely rusted and there was a hole from the rust in the lines. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 168,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11478910August 11, 2022
AIR BAGS
Passenger occupant classification sensor fails to properly identify whether an adult or child is sitting in the front passenger seat causing the airbag to deploy when it shouldn't. If a child is in the front passenger seat and we get into an accident, the child could be hurt or killed by the airbag. We brought it into the Hyundai dealership after receiving a recall notice that it may fail to properly detect whether a child is in the seat or not. At the time of the recall, the dealerships instructions were to place a certain amount of weight on the seat and if the airbag was still disabled then it was determined to be working correctly. I have since been made aware of a Hyundai TSB that came out a couple of years later that stated in all cases the seat cushion was to be removed and sent back to Hyundai for recalibration. In June 2021 the airbag light came on due to a code B1448. In September 2021 I found another TSB by Hyundai stating that they have extended the warranty on the passenger OCS to 15 years, unlimited mileage. The inspection report for the B1448 was on June 7, 2021 and we purchased the car in July 2006. When I called the closest Hyundai dealership regarding the issue they said I was 2 months past the 15 year warranty and there was nothing they could do. I explained that that the code presented itself before the 15 year warranty. It upsets me that I took it in for the airbag recall and the faulty OCS was not replaced at that time. Now I'm stuck driving around a car with the airbag light on or purchase an OCS emulator to fool the system into thinking there is someone sitting in the seat. While this won't fix the problem of the airbag deploying when it shouldn't it doesn't fix the root cause of a faulty OCS mat that Hyundai is well aware of. The vehicle is available for inspection.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11476301July 28, 2022
AIR BAGS
The contact owns a 2006 Hyundai Sonata. The contact stated the air bag warning light remained illuminated. The contact also stated that the air bag warning light was related to the seat belt which was repaired before; however, the air bag light continued to remain illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473277July 11, 2022
AIR BAGS
I financed my 2006 Hyundai Sonata from a Maryland state car dealer. At the time of my purchase, the dealer didn’t disclose to me that the vehicle had a branded title. The branded title was discovered by Toco Warranty when I requested a auto extended warranty quote. I contacted the MVA, and was informed that it’s illegal to finance a vehicle in the state of Maryland with a branded title since the actual miles are unknown and this is required by dealers in Maryland in order to finance vehicles to consumers. Although I was no longer required to make payments to the dealer, my vehicle has a ABS malfunction, brake line failure, that has caused brake fluid leakage and brake failure as well as a critical control arm needed repair. I’m disabled and on a fixed income, and purchased this vehicle to assist in getting to and from medical appointments. The total cost of repair from Mr. Tire Auto service centers estimâtes at $2700 and Triple AAA Auto repair centers estimates $ 4700 with $ 2800 to get my vehicle in safe driving condition. Because of my low fixed income, I’m unable to make another vehicle purchase without at least $4,600 for a down payment and I don’t have the money for a new purchase nor to make needed repairs.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11470550June 22, 2022
AIR BAGS
The red warning airbag light stays on and it’s visible as I drive. Does this mean the airbags are not going to work should I be involved in an auto accident?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11458760March 29, 2022
AIR BAGS
The airbag light in my car stays illuminated and I’m not sure why. No auto/body shops will touch it and the dealership is backed up so bad it’ll be a month and a half before someone can look at it. My car can’t pass inspection like this and if I were to get into an accident it would be extremely dangerous if the airbags didn’t go off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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