Hyundai Santa Fe check engine light comes on

Filed Nov 5, 2026 · Engine · TX

I am submitting a complaint regarding engine oil consumption in my 2017 Hyundai Santa Fe Sport 2.4L 4-cylinder with approximately 117,000 miles. The vehicle consumes approximately one quart of engine oil every 5,000 miles during normal operation. There are no visible oil leaks or noticeable exhaust smoke. I am concerned that the engine may be consuming oil internally due to a possible defect involving the piston rings, valve seals, or another internal engine component. The exact cause has not been professionally diagnosed. Excessive oil consumption creates a safety concern because low engine oil levels can lead to inadequate lubrication, sudden engine failure, or loss of engine power while driving, potentially putting the driver and other motorists at risk. The condition has not yet been formally confirmed by a dealership or independent repair facility. The vehicle has not undergone a formal manufacturer or third-party inspection specifically for this issue. The engine is available for inspection upon request. There are currently no check-engine warning lights or diagnostic trouble codes. No visible smoke or external oil leaks have been observed. The primary symptom is the gradual loss of engine oil during normal driving. I am requesting that the federal safety agency document and investigate this condition to determine whether it may be related to an engine defect affecting Hyundai vehicles equipped with the 2.4L engine.

Filed Nov 5, 2026 · Electrical · KS

I have had my Santa Fe SEL 2022 in the Hyundai service shop 3 times for the reoccurring "Shifter System Malfunction" warning. I have investigated this issue on the internet and found the federal safety agency reports this affects models equipped with the push-button "shift-by-wire" systems. Hyundai has acknowledged this issue with the TSB 23-AT-006H-2. However my vehicle continues to have this intermittent issue and the problem is never fixed. This electrical/mechanical issue poses a severe hazard to my safety as well as makes the car crippling and inoperable. My Santa Fe is unreliable to drive. I never know when I will get stuck somewhere and be stranded. No car owner should experience anxiety every time they drive because they fear the "Shifter Malfunction" warning will appear and make the car inoperable to drive. Then as of late in Oct 2026, I had another malfunction with my car that it went into limp mode and can't accelerate much higher than 25 mph and had to get my car towed to Hyundai Svc center. Could this be related to my reoccurring issue? The 1st time of the SSM warning was on 5/20/25. I could not get my car out of park. Shop found code in car related to SSM warning but it was operating normal for them. 2nd time of SSM warning on 6/30/26. I was stranded and called a friend for help. We had to disconnect battery for 15 min then turn car back on. Was able to take car out of park and drove to Hyundai service. It still had the engine warning light on did but techs said it did not show any codes. Shop had opening not until 7/14/26. Had my car for 7 days. I had to tell them of the TSB on the issue. They said they found issue with my wiring harness and replaced part. I thought my issue with the SSM was solved. IT WAS NOT SOLVED. For the 3rd time on 8/15/26, I once again got on my dashboard the "Shifter System Malfunction Service Immediately" warning. This was only a month and half from when the shop supposedly fixed the problem. They could not duplicate problem so no fix.

Filed Nov 2, 2026 · Engine · NV

On October 14, the vehicle experienced a sudden and catastrophic loss of motive power ("limp mode") while driving at highway speeds, creating an immediate and severe risk of a high-speed rear-end collision. Notably, no Check Engine Light or dashboard warning illuminated prior to or during this sudden deceleration to warn of the failure. On October 16, the vehicle was transferred to an authorized manufacturer dealership (ABC Hyundai in Las Vegas, Dealer Code NV031), where it is currently located and available for inspection. The vehicle has now been in the dealership's custody for 17 consecutive days. Despite telematics data proving the vehicle is being actively started and driven around the dealership lot across multiple shifts, the service department has refused to formally document the diagnostic trouble codes (DTCs) or submit the mandatory engine failure diagnostic paperwork to the manufacturer. The manufacturer's corporate customer care department confirmed on day 17 that the dealership has submitted zero diagnostic data to them regarding this failure. Furthermore, the vehicle had three open safety recalls when surrendered. Records indicate the dealership has performed two of these recall repairs during this 17-day hold without providing any notification, status updates, or documentation to me. Yet, they have deliberately left the most critical mandate—an "URGENT: FIRE RISK WHEN PARKED" safety recall (the federal safety agency Recall 22V056000)—unrepaired. The dealership is actively holding, starting, and driving the vehicle without mitigating this urgent fire risk, while simultaneously refusing to process the engine failure diagnostics or provide a safe alternative vehicle. The dealer's deliberate refusal to process the catastrophic engine failure while selectively performing other recall work in secret presents an ongoing safety hazard and a gross lack of transparency.

Filed Nov 2, 2026 · Engine, Fuel system · MO

2019 Hyundai Santa Fe, XXX oil light came on but it wasn't time for my next oil change. I stopped by Advanced Auto to get code read, was told Camshaft sensor error. A week later, had my mechanic check code before doing oil change. He got the same code and ordered and replaced camshaft along with doing oil change. Drove two miles away from mechanic, oil and engine light came on. A week later I left my car with mechanic to check and replace oil sensor. The oil light was still on and he told me to take the car to the dealer because the engine is probably bad. Took car to the dealer, told them of all the previous work I just had done and asked them to check for any recalls or campaigns. Two recall/campaigns were updates, 9C2 and P33. Was told I needed Oil Flow Control valve Exh, got that replaced but lights were still on. Next, I was told I needed an Oil Pressure Switch, got that replaced, lights were still on. Dealer wants to do exploratory search to see if they can find out why lights are on but tell me I will have to pay for everything as they replace parts. What? I just paid them $1224.67 and nothing's fixed, lights are still on. Spoke with svc rep, [XXX] over the phone, she told me the engine light is still on and the oil light goes off during acceleration, I picked up my car as I can't keep getting nickeled and dimed after every part is replaced with no correction to the issue I came in for. Now the car runs like shit and burning gas like crazy. Engine is making sounds and acceleration is loud and slow. I believe this engine is going out and needs to be recalled as well. So many Santa Fe's are having this same issue and at 44,000 miles, I shouldn't be having any problems with this car. How is this allowed from the manufacturer? These engines are going to stop working, hopefully not while anyone is driving. Hyundai should be made to fix this asap. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 1, 2026 · Driver assistance, Fuel system · FL

My 2021 Hyundai Santa Fe SE (VIN: [XXX]), with approximately 93,000 miles, has repeatedly experienced a dangerous loss of acceleration while driving at highway speeds of approximately 60 mph. When I press the gas pedal, the vehicle fails to accelerate, making it difficult to merge, pass, or respond safely to traffic. The vehicle does not suddenly slow down, but it will not increase speed when needed. This creates a serious safety risk to me and other motorists. The problem occurs without a check-engine light or advance warning. I have noticed abnormal behavior involving the Idle Stop & Go “A” indicator, which changes between orange and white. Coconut Creek Hyundai, an authorized Hyundai dealership, has inspected the vehicle multiple times. The dealership initially replaced the battery, then diagnosed and replaced the high-pressure fuel pump. The pump was replaced a second time due to a reported issue with the replacement. Software updates or resets were also performed. Despite these repairs, the original acceleration problem continued. The dealership has now diagnosed all four fuel injectors as severely clogged or defective and recommends replacing them. The service advisor stated in writing that the high-pressure fuel pump failure caused the injectors to fail. However, the dealership has not explained why this damage was not identified during earlier repairs or provided assurance that replacing the injectors will resolve the acceleration problem. Hyundai Motor America has been contacted regarding the repairs. The vehicle and dealership service records are available for inspection upon request. Availability of previously removed parts must be confirmed with the dealership. I request that the federal safety agency investigate this recurring highway acceleration failure as a potential vehicle safety defect. Multiple repair attempts have failed to resolve a condition that could result in a serious accident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 29, 2026 · Engine, Fuel system · CO

The engine light came on. Upon driving it on the highway it would lost acceleration but was able to drive under 50 miles per hour about 5 miles. When opened the hood there was fluid splattered on the engine. There is a hole in the upper left quadrant beneath the engine cover.

Filed Oct 29, 2026 · Driver assistance, Electrical · AR

2025 Hyundai Santa Fe - The sound for the blinkers, rear-view camera alerts, and radio sounds has gone out 2 times, once in XXX and then on XXX. This is a safety issue. I have had issues with an electrical battery drain with the key fob antenna being one of issues draining the battery and replaced in XXX. After the sound went out on XXX, I did not drive the vehicle for 1 day, then went to get into the vehicle on Wednesday, XXX and the vehicle was dead. No lights were on, it would not unlock. I missed the scheduled service appointment I had on the XXX due to the dead battery. The car had sat unused for less than 24 hours. I had to call Hyundai roadside assistance for them to jump the car off and tow it to the dealership yesterday afternoon. The battery drain started happening at 700 miles on the car, where I jumped it off myself, and continued to happen every month or two. I kept jumping it off and taking it to the dealership to let them know what was going on. Sometimes, they would investigate it, and sometimes nothing would get done about it. I have had to jump this vehicle off myself at least 6 times since XXX. Yesterday, I just called roadside assistance. There is clearly an electrical drain on the car battery somewhere in this vehicle. XXX, the car was located in [XXX] on a vacation and started having shuttering and engine light came on. This was fixed on XXX by replacing #4 fuel injector prior to 30,000 miles. This is not a reliable vehicle, or safe. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 14, 2026 · Engine, Transmission · CT

the ongoing safety defect affecting my leased 2025 Hyundai Santa Fe. This summarizes the facts as discussed, the danger this defect presents, and the urgent need for resolution. Summary of the Defect Since leasing the vehicle, it has intermittently and without warning decelerated to a complete stop (0 MPH) while driving, regardless of the speed at which I am traveling — including at approximately 30 MPH on local roads and at approximately 65 MPH on I-95. The specific facts of this defect are as follows: The vehicle decelerates to a full stop within approximately 5-10 seconds of the malfunction beginning, with no advance warning. After the vehicle stops, attempting to accelerate again takes approximately 30-45 seconds before the vehicle begins to move, and it does so only slowly. When this occurs, the vehicle beeps and a flashing green “OFF LIMITS” light appears. No check engine light or other diagnostic warning is triggered at any point. This has occurred approximately 25 times since I leased the vehicle. On the last three occasions I reported this, Hyundai/dealership personnel drove the vehicle and were unable to duplicate the problem. As I have repeatedly explained, the defect occurs intermittently and unpredictably, so this is not evidence the problem does not exist. The Danger This Defect Presents I want to be direct about the severity of this situation. A vehicle that decelerates to a complete stop without warning — whether on a local road or on a highway at 65 MPH — creates an immediate risk of a rear-end collision, a multi-vehicle accident, or worse. The fact that the vehicle then takes 30-45 seconds to regain even slow movement compounds this danger, particularly in moving traffic. This is not a comfort or inconvenience issue; it is a significant, stressful, and potentially deadly safety defect, both for me and for any passengers in my vehicle, as well as for other drivers on the road.

Filed Oct 12, 2026 · Transmission · TX

On September 20, 2026, my 2021 Hyundai Santa Fe Calligraphy suffered sluggish acceleration while operating on a public roadway due to an internal dual-clutch transmission (DCT) failure. The Malfunction indicator light illuminated, and a diagnostic scan revealed stored history code P1C2D03, indicating a total breakdown of the high-pressure electric pump assembly. As of September 21, 2026 the vehicle is currently grounded at an authorized Hyundai dealership under an approved factory warranty repair Prior Authorization (PA) request. However the dealership has issued a written admission of "NO ETA" because the replacement transmission components are on an indefinite national backordered and are no longer being manufactured . Because the vehicle cannot be repaired in a reasonable timeframe due to a severe factory design defect , it remains unresolved.

Filed Oct 5, 2026 · Transmission · MT

Driving at highway speed, vehicle stuttered/lurched. The check AWD, engine light, tire pressure warning lights came on. Check by mechanic resulted in error code P0741 (Torque Converter Clutch Circuit Performance or Stuck Off). Search of error code P0741 indicates that there is a Technical Service Bulletin TSB-23-AT-005H regarding this KNOWN problem. A stutter or lurch of the vehicle can cause the driver to over react, stop or swerve suddenly in traffic potentially causing an accident not to mention possible being struck on the side of the road while waiting for a tow/service truck. Vehicle/components have not been checked by manufacturer--only diagnostic code by Mechanic. Warning lights after incident included the AWD system, Check Engine Light, and Tire Pressure sensor light. Vehicle is being towed to a Hyundai Dealership as Mechanic advised it is not safe to drive.