HYUNDAI ELANTRA GT

POWER TRAIN

In mid-2024, the vehicle experienced a flashing check engine light. I brought it to Murfreesboro Hyundai (TN), where they confirmed the oil was low and started an oil consumption test. A bearing clearance test (BCT) was also performed and passed. After back-and-forth over several weeks, I was told the oil consumption was within spec, but the dealership stated Hyundai would cover all necessary repairs, including a combustion chamber cleaning, under warranty. I was told this work was completed and the vehicle was returned to me. In July 2025, the exact same flashing CEL returned. I brought the car back to the same dealership, where they again found the oil was 2.5 quarts low. However, this time they claimed no previous combustion cleaning or repairs had been done, and that I would now need to pay over $1,100 out of pocket for the same cleaning that was supposedly already performed — and which they had told me would be covered under warranty. This indicates that the dealership misrepresented completed service work, failed to address a recurring defect, and is now trying to shift the financial burden to me. Hyundai’s claim that oil consumption is not “high enough” to warrant coverage is concerning, especially when the condition continues to damage the engine and cause driveability issues. This appears to be part of a broader known defect affecting Hyundai 2.0L engines. I am requesting that NHTSA investigate Hyundai’s handling of oil consumption, engine misfire, and warranty practices related to the 2018 Elantra GT and similar models.

ENGINE

In mid-2024, the vehicle experienced a flashing check engine light. I brought it to Murfreesboro Hyundai (TN), where they confirmed the oil was low and started an oil consumption test. A bearing clearance test (BCT) was also performed and passed. After back-and-forth over several weeks, I was told the oil consumption was within spec, but the dealership stated Hyundai would cover all necessary repairs, including a combustion chamber cleaning, under warranty. I was told this work was completed and the vehicle was returned to me. In July 2025, the exact same flashing CEL returned. I brought the car back to the same dealership, where they again found the oil was 2.5 quarts low. However, this time they claimed no previous combustion cleaning or repairs had been done, and that I would now need to pay over $1,100 out of pocket for the same cleaning that was supposedly already performed — and which they had told me would be covered under warranty. This indicates that the dealership misrepresented completed service work, failed to address a recurring defect, and is now trying to shift the financial burden to me. Hyundai’s claim that oil consumption is not “high enough” to warrant coverage is concerning, especially when the condition continues to damage the engine and cause driveability issues. This appears to be part of a broader known defect affecting Hyundai 2.0L engines. I am requesting that NHTSA investigate Hyundai’s handling of oil consumption, engine misfire, and warranty practices related to the 2018 Elantra GT and similar models.

ENGINE

It uses a lot of oil with no visible leak or reason. I put new oil in all the time. All the time! For two years since buying it used. Warning light does not come on till it's out. Car is hot, of course, and stops running in the middle of the road. I see there is a recall on some elantras for oil piston seals but not this car. Seems it should be.

ENGINE

Y check engine light started flashing and I have a code reader and it come up p1326 wh I ch is knock sensor lost power and I checked into that and it said a lot of engines were affected by that and they had to replace thousands of engines for this and my vehicle was in the affected ones b6t I put the Vin in and it has no recalls can't even drive now

POWER TRAIN

Was driving the car on a two lane road and engine shut off. Had to coast to side of road. Had car towed to deal and they say it is a bottom end knock and engine has to be replaced. It has 54,000 miles and has been serviced regularly by Hyundai dealers. Dealer can not specify what is wrong with engine other than bottom end knock and won’t drop the pan or do an oil analysis to find out more details.

UNKNOWN OR OTHER

when i was in the rear seat and closed left side door, i found myself stuck. the window would not go down from switch as well so i could not use outside handle for exit. after climbing to other side of backseat with my physical impairment (difficult in tight space backseat) i exited and checked outer handle the door opened. i then checked child saftey lock switch and it was not in child safety position. i checked the window power switch at driver door main control and window went down but not back up.

ELECTRICAL SYSTEM

when i was in the rear seat and closed left side door, i found myself stuck. the window would not go down from switch as well so i could not use outside handle for exit. after climbing to other side of backseat with my physical impairment (difficult in tight space backseat) i exited and checked outer handle the door opened. i then checked child saftey lock switch and it was not in child safety position. i checked the window power switch at driver door main control and window went down but not back up.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

when moving during heavy traffic the car, when braking, will suddenly stop or stop heavily at slow speeds. this causes passengers to be jolted as well as following cars. possible rear end collision is the effect as well. passenger safety of accident is a concern. no warning or indication has been shown at dash.

SERVICE BRAKES

when moving during heavy traffic the car, when braking, will suddenly stop or stop heavily at slow speeds. this causes passengers to be jolted as well as following cars. possible rear end collision is the effect as well. passenger safety of accident is a concern. no warning or indication has been shown at dash.