2012 Hyundai Veloster: engine knocking or ticking

Filed Sep 10, 2026 · Engine · IL

The contact owns a 2012 Hyundai Veloster. The contact stated that while driving 37 - 40 MPH, the accelerator pedal was depressed, and the vehicle made knocking sounds. Additionally, while parking the vehicle, there was a fuel odor and smoke coming from the vehicle. The check engine warning light was illuminated. The vehicle was diagnosed by a mobile independent mechanic, who determined that the vehicle needed an oil change and that there was engine failure with the vehicle.

Filed Mar 3, 2026 · Acceleration, Engine · 100,000 miles · AR

The contact owns a 2012 Hyundai Veloster. The contact stated that the vehicle was taken to the local dealer for an unknown recall repair. Upon retrieving the vehicle, the check engine warning light illuminated. The reverse and drive gears were inoperable. The vehicle was towed to the local dealer, where an unknown diagnosis was provided. The vehicle was repaired, but the failure recurred. The contact stated that the transmission was inoperable, the starter, the engine light were blinking, and the vehicle was slow to move. There was smoke coming from the vehicle. There was an abnormal knocking sound coming from the engine. The manufacturer was not contacted. The failure mileage was approximately 100,000.

Filed Aug 29, 2025 · Acceleration, Engine · TN

After an update for a recall for brake issues, the dealership updated the knock sensor update without my consent. After the knock sensor software was installed, my 2012 Hyundai veloster will not operate without going into protection mode. Hyundai states that they can not reverse the software update to make my vehicle operable again. This has already come up as a safety concern as my wife was on the interstate when the vehicle shut down in 70+ mph traffic.

Filed Dec 11, 2023 · Engine · SC

I was driving up to the mountains yesterday and my car began to make a knocking noise, my check engine light began to flash, the car turned off, and we had to basically let the car coast to an exit. Firestone said that my spark plugs 1,2,3 failed and my engine is knocking aggressively (code P1326).

Filed Sep 26, 2023 · Engine · 141,000 miles · MD

The contact owns a 2012 Hyundai Veloster. The contact stated that while driving at various speeds, there was a knocking sound coming from under the hood. The check engine warning light was illuminated. The vehicle was taken to an undisclosed dealer where it was diagnosed that the knock sensor detection system (KSDS) needed to be replaced. The contact stated that the vehicle was repaired; however, the contact stated that the failure recurred. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 141,000.

Filed Aug 22, 2023 · Engine · 150,000 miles · VA

The contact owns a 2012 Hyundai Veloster. The contact stated that after the dealer had completed the knock sensor detection system (KSDS) software update under Hyundai Campaign Number: 966, the check engine warning light illuminated while driving. Additionally, the vehicle failed to exceed 35-40 MPH while depressing the accelerator pedal. The vehicle was taken back to the dealer, where it was determined that the engine needed to be replaced. The dealer contacted the manufacturer; however, the manufacturer denied assistance. The vehicle was not repaired and remained at the dealer. Additionally, the contact became aware that the VIN was included in the federal safety agency Campaign Number: 23V132000 (Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 150,000. Parts distribution disconnect.

Filed Aug 15, 2023 · Acceleration, Engine · TN

I have issues with past recalls, but they are not showing up in this list. I had a Body Throttle recall and 5 minutes after it was fixed it broke down and then again a week after and a month after altogether until the body throttle had to be replaced. I had the knock sensor recall done and now it went off code P-1326 is showing with a check engine light and it only drives 62mph. I mean the engine is bad and may catch on fire, and need to be replaced. Yes, the dealer knows and is waiting for my car to be put on the engine replacement list, which has been over 4 months now. There is a lawsuit to change it but Hyundai is not doing it.

Filed Mar 3, 2023 · Driver assistance, Engine · FL

I am writing to formally file a complaint against Hyundai USA regarding the engine damage, defect caused by connecting rod bearing failure that I am experiencing with my 2012 Hyundai Veloster. Hyundai is fully aware that countless owners have experience the same issues and have sent letters detailing the problems. I have always choose a Hyundai affiliated dealership to have all my services and repairs done. It has always been more expensive, but I wanted my vehicle to be in good shape and believed that I would receive the best services through them. The problems with my vehicle started in late 2019 or early 2020 when I was driving with my family on the highway. It felt as if the car was about to fall to a sudden stop, and the speed suddenly started decreasing, and eventually the vehicle couldn’t go over 60 miles/ hour and dropping even lower. That problem created a safety hazard to me and my family since we were driving on the highway and were hundreds of miles away from our destination. After months of not being able to drive the car and having the same problems, I took the vehicle back to the dealer’s service center and had paid them to have some repairs done. However, after a few days, the same issue started again, and had to get it repaired again. The same problems persisted, and after consulting with the technicians, I was told that the dealer had contacted Hyundai and that it is a manufacturing defect and Hyundai needs to change the engine since all the many repairs that had been done but did not solve the known issues. They had reassured me that because I have always kept with regular maintains of my vehicle through the affiliated Hyundai dealers and should have no problems getting the engine replaced. The engine still has not been replaced, all the while I am still paying car insurance on the vehicle. I have bled enough money on a vehicle that I am not be able to drive. I shouldn't have to pay Hyundai close to $5,000 for their defected engine.

Filed Dec 12, 2022 · Engine · TX

I got a routine oil change at an old change place and then needed another one 2 1/2 weeks later. The employees at the shop informed me that my vehicle was burning through the oil extremely fast and that the oil dipstick was bare when they checked the oil level. They checked for leaks and found none. The very next day I started hearing a clicking noise coming from the engine and the check engine light was on. I took the vehicle to Autozone in order to run diagnostics on the vehicle to find the problem. The employee there said it was the knock sensor informing us that something is wrong with the engine. I then took the vehicle to a mechanic to see if the problem could be alleviated. The mechanic informed me that there was nothing he could do because of the manufacturing defects of this specific engine. He informed me of a number of filed complaints about this specific engine and it having the same exact problems. The mechanic also informed me that I should immediately stop driving the vehicle because the engine knocking and there is an extremely high risk of it blowing up. I had no idea this engine would do that and have been taking care of the vehicle through routine maintenance since I purchased the vehicle.

Filed Nov 29, 2021 · Engine · 65 miles · CA

The contact's granddaughter owns a 2012 Hyundai Veloster. The contact stated that while his granddaughter was driving 65 MPH, an abnormal booming sound emitted from the vehicle as the vehicle shutoff without warning. Due to the failure, his granddaughter had the vehicle towed to his home where he discovered that the compression rod bearing had blown threw the engine block. The contact stated that the engine needed to be replaced. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was unknown.

Filed Aug 13, 2021 · Engine · GA

Engine knocking around 75k miles. Oil changed every 2000 miles. Proper maintenance. Loud knocking noise.

Filed Jul 28, 2021 · Engine · VA

Started with knocking and ticking noise then failure to accelerate. Engine failed due to unknown reasons. Have been confirmed by car mechanic licensed and insured