Other Fuel System Problems of Hyundai Sonata - part 1

Vehicle: 2013 Hyundai Sonata GLS recall: 22v-312 / Hyundai 227 incident: engine-compartment fire date: November 8, 2026 description: smoke appeared while driving. I pulled over and turned the vehicle off, then it caught fire.

See all problems of the 2013 Hyundai Sonata 🔎.

The vehicle is currently at greenway orlando Hyundai for a fuel-system-related repair. During the dealership’s inspection, the dealership identified a crack in the fuel pump housing and a fuel leak. The dealership also provided photographs documenting the crack and the leak, and the vehicle has a very strong fuel odor. My primary concern is safety. A cracked fuel pump housing with a fuel leak presents a potential fire hazard. I do not believe it is safe to drive or operate the vehicle in this condition. The vehicle is being serviced in connection with Hyundai TSB 23-FL-004h, “fuel pump filter warranty extension (txxs), inspection and replacement. ” the prior approval/goodwill issue is particularly important in this case. Note 2 on page 2 of TSB 23-FL-004h states that when a part not covered by the TSB is found to require replacement while performing the txxs procedure, and that part is out of warranty, the dealership should submit a prior approval request for goodwill consideration before performing the work. When greenway orlando Hyundai identified the cracked fuel pump housing and the fuel leak, I asked the dealership to pursue this solution with Hyundai. Initially, the dealership refused to submit the prior approval/goodwill request. Because of that refusal, I personally contacted Hyundai, opened a complaint/case, and informed the dealership about the situation. I also insisted that the dealership submit the prior approval request contemplated by Hyundai’s procedure. Only after my insistence did greenway orlando Hyundai submit the prior approval/goodwill request to Hyundai. That request was subsequently denied. Therefore, I want to make it clear that I am not simply disputing the cost of a part that I chose to replace. The damaged component was identified by the dealership itself while the vehicle was undergoing fuel-system-related service. I asked the dealership to pursue the solution provided for under Hyundai’s procedure, but I had to take action directl.

See all problems of the 2015 Hyundai Sonata 🔎.

The car has strong fuel smell in the cabin when tank is full, it is especially strong after car sits. I have taken to Hyundai several times for this problem. They say the computer says nothing is wrong. They refuse to investigate as they dont smell the odor.

See all problems of the 2020 Hyundai Sonata 🔎.

My 2013 Sonata caught fire from the engine I was barely able to get out safely.

Summary of event: this vehicle was brought to an authorized Hyundai dealership for a mandatory safety recall engine replacement under the theta ii engine recall campaign. The dealership successfully installed a replacement engine provided by the manufacturer. However, the dealership and Hyundai motor America are now refusing to return the vehicle to me in a functional, safe condition. Safety hazard & defect: the dealership states that the replacement engine shipped by Hyundai is mechanically and physically incompatible with the vehicle's original, factory-installed high-pressure fuel pump (hpfp). In an official written correspondence from a Hyundai motor America corporate case manager, Hyundai explicitly documented that: "dealership stated that it is not safe to drive the vehicle with old fuel pump. " despite acknowledging that the vehicle is now in an "unsafe to drive" condition due to the mismatched replacement parts provided by the manufacturer, Hyundai corporate and the dealership are refusing to complete the safety recall remedy unless I pay $1,500 out-of-pocket for a new, compatible fuel pump.

See all problems of the 2014 Hyundai Sonata 🔎.

Description of safety defect & immediate hazard:my 2021 Hyundai Sonata sel is currently exhibiting the most severe, catastrophic symptoms of the fuel tank expansion defect covered under NHTSA campaign 25v796000. The fuel tank has expanded so drastically that it physically warped the structural interior of the cabin, violently popping the rear passenger seat completely out of its assembly while the vehicle was in motion. Furthermore, there is a constant, heavy, raw gasoline odor inside and around the vehicle. The vehicle is a documented, active fire, explosion, and vapor inhalation hazard. It is currently physically located at sterling Hyundai in lafayette, la. Description of manufacturer non-compliance & refusal to remedy:Hyundai motor America and sterling Hyundai are in direct violation of their legal obligation to provide a safe, accessible remedy or interim safety accommodations under federal recall guidelines. An executive case manager from Hyundai corporate has officially refused to provide a direct-billed rental vehicle or a dealer loaner. Initially, a third-party rental vehicle was provided. However, that vehicle was compromised in an accident and wrecked through absolutely no fault of my own. Despite my lack of fault, Hyundai corporate and the dealership are now explicitly using that accident to refuse any further direct-billed rental accommodations or dealer loaners. Instead, they are demanding that I pay out-of-pocket for a rental vehicle at a rate of $60/day for a repair process expected to take multiple weeks, knowing I do not possess the upfront financial means to cover these costs. By imposing this insurmountable financial barrier due to an accident I did not cause, Hyundai has effectively stranded me. Because I must maintain my livelihood and have no other means of transportation, Hyundai’s bad-faith refusal to direct-bill an accommodation is actively forcing me to retrieve and operate a verified, explosive fire hazard. Remedy sought:I request that the nh.

See all problems of the 2021 Hyundai Sonata 🔎.

The vehicle experiences a severe delayed start/extended crank condition before finally starting. This is caused by a loss of fuel pressure prime due to the defective fuel filter housing leaking internally, creating an unpredictable and unsafe vehicle operation hazard. The dealership is denying coverage under the 15-year/150,000-mile extended warranty (campaign txxs), claiming the issue is a standard fuel pump failure while completely ignoring that the integrated fuel filter housing defect causes this exact failure. ".

See all problems of the 2018 Hyundai Sonata 🔎.

The fuel tank assembly became pressurized with compressed air due top worn purge control system check valve. This caused the tank to deform and the deformation of the tank led to the fuel pump being pushed out and the back seat of the car was completely unattached and no longer secured. There was a strong presence of gas smell in the car as well. The check engine light came on and the car began to drive poorly. It was taken directly to a Hyundai dealership where it remains as of today. This could have resulted in the car catching on fire and potentially killing everyone in the car. My [xxx] daughter and 2 friends was driving the car from louisiana to mississippi when this occurred. The dealership in ms told her she needed to call and find someone to come and get her because the car was not safe to drive. My daughter was stranded in another state and had a college friend come and get them since I did not have a car and I was in louisiana. After several hours her friend was able to pick them up which she remained stranded in ms for an additional 4 days. I had to get a friend to meet them halfway and bring her home because the dealership said there was nothing they could do to assist with transportation. This occurred on [xxx]. My car remains at this dealership in ms with only the testing to say the gas tank test failed and the car could not be driven. I was told Hyundai would offer a buyback on my vehicle because the repair was costly and time consuming. I have not been reimbursed for my transportation expenses through uber as of today. I was told I could rent a car and they would reimburse my expense after I submitted a receipt and waited several weeks to process and then at least 2 weeks for the payment to clear. Either way I have received nothing. There was not any warning and the dash lights and poor engine running all happened at once. She drove straight to the dealership on [xxx]. We have not been treated fairly with this situation. Information redacted pursuant to the freedom of information act (foia), 5 u. S.

See all problems of the 2022 Hyundai Sonata 🔎.

A franchise dealership performed a federally mandated safety recall service (ecm software update) and a knock sensor replacement on this 2015 Hyundai Sonata 2. 0l turbo. To perform these specific repairs, the technician had to work directly around the intake and turbocharger assembly workspace. Immediately after picking up the vehicle, it suffered a sudden and dangerous loss of power and refused to accelerate normally on the highway, creating a severe traffic hazard. Upon an immediate emergency inspection by the same service center 5 days later, the dealership documented in writing that the turbocharger intercooler hose clamps were completely off/unfastened. Because the technician left the clamps disconnected, the turbo lost sealed pressure, failed completely, and began dumping high-pressure engine oil backward through the air filter intake box. The service center is now refusing to take responsibility for the mechanical safety failure directly caused by their technician's recall repair negligence.

Vehicle experienced intermittent, severe powertrain defect resulting in a critical safety hazard. Between 30k and 36k miles, the vehicle underwent 3 violent highway deceleration episodes. During these events, the engine began shaking, escalating to violent shaking; with deceleration and coming to a stop, it would shake, then sputter as if it would die. Coming to a complete stop, a total stall was prevented only by the ecm forcing a limp mode lock at 1200 rpms. When auto hold was engaged at this point and my foot was removed from the brake pedal, the mechanical surge caused the vehicle to unexpectedly lurch forward, fighting against and nearly overriding the factory auto hold braking safety feature before finally holding. Luckily, no pedestrian was walking in front of my car when this occurred. No check engine light (cel) or dashboard warning ever illuminated. This safety compromise is directly tied to an ineffective or adjacent remedy involving service campaign 9b1 (opcode 40d219r0) and safety recall 286. Under this opcode, a factory software flash deleted the standard obd-ii trouble code p0451and substituted it with a manufacturer-specific shadow code p14ee00. This software manipulation suppressed universal emission/pressure sensor faults, masking a volatile physical defect within the high pressure fuel delivery and ignition systems. Dealer diagnostics on a running, compromised engine flagged an improper fuel injector pulse and subsequently a failing cylinder 3 ignition coil. All four injectors were replaced but only one coil, leaving 3 non-updated , factory defective coils in the engine. The vehicle remains an ongoing highway stalling and brake-override hazard due to an incomplete field remedy of a recall-adjacent system. I've filed a Hyundai complaint with assigned case number 43394228 regarding safety recall 286. (two episodes of the attempted auto hold override occurred - first 09/09/2026 and second 09/29/2026. ).

My car stalls while driving and then I try to restart it but nothing happens. After reading online about the fuel pump issues and extended warranty related to the fuel pump I took the car in for repair. My car has 75,000 miles and the extended repair on this is for 150,000 miles/15 years. The dealer is refusing the repair because my car has a branded/ theft title. The car wasn't damaged just stolen. This is creating a serious safety concern and should be repaired by the dealer. Thank you for your time.

After receiving the Hyundai service campaign 9c2 update on my 2015 Hyundai Sonata on xxx, I have started having jerky acceleration when the car is first started and am driving. Also, while driving at highway speed (~65 mph)) and I take my foot off the accelerator to coast, the engine rpm drops suddenly, anywhere from 250 rpm to 750 rpm, then recovers abruptly to where it was at prior to the drop (typically around 2000 rpm). The engine rpm also drops while driving at slower speeds and recovers but is not as noticeable as it is at highway speeds. It was not doing this prior to the service campaign. There are no check engine lights or pending codes. I brought it back to the Hyundai dealer and discussed the issue with them on xxx. They acknowledged it was likely due to the service campaign and they did not want to keep the car to look at it and said no damage was being done and it was safe to drive. They said a fix was in the works but did not know how long until it was released and I should receive information in the mail on it. Video link [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I took my vehicle in for the safety recall due to an expanding fuel tank on 08/03/2026. I received my vehicle back on 8/12/2026. Hyundai performed an improper repair on the vehicle that will not correct the fuel tank expansion. They replaced the same check valve that was replaced last time I brought the vehicle in for recall on 11/20/2024 repair order # 107221 at jones Hyundai of belair. This valve did not and will not correct the fuel tank expansion issue. The expansion issue is caused by fuel getting past the check valve and entering the purge control system. The correct repair is to replace the fuel tank and the purge control system, as the check valve has already allowed fuel to bypass it and enter the system causing the expansion issue. . Replacing the valve that failed & allowed fuel into the system & caused the tank to expand will not correct the issue caused by the failed valve. My fuel tank has not decompressed. I still have the same problem I brought the vehicle in for because the repair Hyundai advised NHTSA on was not performed.

Gas tank expansion and pcv melted. Car smells like gas when I was driving earlier, and my garage was flooded with the fumes of gasoline.

Issue- fuel pump/supply line causing fuel to leak and fuel smell around the outside of the car. This can cause a major fire, explosion, death for myself and others around me. Problem has been confirmed by auto repair shop. No warning messages on car dash board, just strong smell of gas. Replaced gas cap and smell is still there.

Vehicle stalled in traffic due to recall defect. Manufacturer recall remedy is delayed beyond reasonable timeframe, creating ongoing safety exposure.

See all problems of the 2019 Hyundai Sonata 🔎.

Engine revving at a complete stop. Surging engine while braking. I was forced to put into neutral when stopping. I had check engine prior that read p049d85. It went away. The Hyundai dealer said to be the egr valve. Nick hayes at d'arcy Hyundai and Hyundai motor America (hma) agreeing to a 75% goodwill split of cost to repair.

Diagnosed 07/20/2026 with catastrophic oil ring failure requiring engine replacement. Engine can stall due to oil degradation/absence of causing uncontrolled vehicle handling and fire. This would put myself and others at risk. It has been diagnosed at dealership. Complaint narrative: the subject vehicle is experiencing its third total engine failure due to an inherent manufacturing and design defect, presenting a severe and repeating highway safety hazard. The original factory engine failed catastrophically in 2015 at 116,440 miles and was replaced under NHTSA recall 15v-568. The second engine failed in 2021 at 244,710 miles and was replaced under NHTSA recall 17v-226. The third engine (the second replacement) has now failed prematurely at 334,935 chassis miles, lasting a mere 90,225 miles. An authorized Hyundai dealership diagnosed a total failure of the oil control rings. This mechanical defect allows engine oil to bypass the pistons directly into the combustion chambers. This causes severe, rapid oil consumption, spark plug fouling, engine stalling, and total loss of motive power at highway speeds without prior dashboard warning illumination. The manufacturer is failing to provide safe, durable remedies for its federally mandated safety recalls (see warranty info magnuson-moss warranty act (15 u. S. C. § 2301 et seq. / breach of implied warranty of merchantability). Instead, they are installing subsequent replacement powerplants that suffer from the exact same structural vulnerabilities and component lifecycle failures. This creates a continuous risk of sudden engine seizure and traffic collisions for consumers.

See all problems of the 2012 Hyundai Sonata 🔎.

I am filing this complaint regarding transmission and drivability problems with my 2015 Hyundai Sonata 2. 4l following Hyundai campaign 9c-2. My vehicle was running and driving perfectly before this update. I have always maintained it on time, followed proper maintenance schedules, and have records documenting its maintenance history. I never experienced these transmission issues before the update. The problems began immediately after the campaign was performed. In fact, I noticed the abnormal shifting before I even left the dealership after picking up my vehicle. Since the update, the vehicle has experienced poor and abnormal shifting behavior. I contacted the dealership to report the problem and also filed a complaint directly with Hyundai corporate. I was told that Hyundai is aware of the issue, yet my complaint remains unresolved. I also located a document online indicating that Hyundai is aware of this problem. Additionally, I have seen numerous reports from other Hyundai owners describing similar transmission problems after receiving this same update. My vehicle has approximately 82,000 miles. The engine was replaced approximately one year before this complaint. Given the vehicle's excellent operation before the update, my documented maintenance history, and the immediate onset of the problems at the dealership, I am seriously concerned that campaign 9c-2 caused or contributed to these transmission issues. I am requesting that NHTSA investigate whether this software update causes or worsens transmission shifting problems in affected Hyundai vehicles. Hyundai's awareness of the reported issue and the apparent number of similar owner complaints make this especially concerning. I believe this issue deserves investigation to determine its cause, assess any potential safety risks, and establish whether corrective action.

I am writing to report a direct violation of the theta ii class action settlement terms by Hyundai motor America. This morning , I emailed an executive case manager explicitly explaining that my 2017 Sonata has an active p1326 code, has the 2019 ksds update, and requires a mandatory diagnostic under NHTSA recall 17v226 that cannot be denied due to a salvage title. Instead of replying to my facts, the case manager kathy gave me a hard denial falsely framing my federal recall safety request as a "voluntary goodwill warranty" issue to justify her rejection. Please help me in getting authorization my car with Hyundai dealership in plano TX to run the bearing rod test and get it fixed.

See all problems of the 2017 Hyundai Sonata 🔎.

Fuel line leak, car is parked, fire hazard, a mechanic has been there to inspect.

When my father was driving, the vehicle stalled out with no prior odd activity. He pulled over to the side of the road and attempted to start the vehicle. He saw smoke, opened the hood, saw flames and cleared the area of the vehicle. Due to the large Hyundai/kia engine recall for his year of vehicle, the engine had been replaced 2-3 times and only ever been serviced by the dealership. We do not know if all recall repair work had been done, because there was also a fuel line recall which was "fixed" in 2020 and 2022.

The low-pressure fuel pump module assembly, located directly beneath the rear passenger seat cushion, experienced a plastic housing failure. A stress fracture on the upper plastic fuel outlet nipple caused raw liquid gasoline to actively weep and pool on top of the module inside the passenger cabin. This component is retained and available for inspection upon request. Risk to safety: raw liquid gasoline pooling inside the interior passenger compartment creates an severe, immediate fire and explosion hazard. Additionally, vehicle occupants were exposed to toxic fuel vapors while driving. Inspection & dealer confirmation: an authorized Hyundai dealership inspected the vehicle and confirmed raw fuel leaking at the top of the fuel pump module assembly. This exact module had previously been removed and disassembled during a 2024 manufacturer recall service to replace the internal fuel filter and tank seal. Stress applied to the plastic fittings during that recall service appears to have caused the plastic top-hat to fracture over time under line pressure. Hyundai corporate was notified of the safety hazard and prior recall history, but refused assistance. Warning symptoms: the failure began with a strong, persistent fuel odor inside the vehicle cabin. No dashboard warning lights, check engine lights, or diagnostic trouble codes (dtcs) triggered prior to or during the failure. Summary: a stress-fractured plastic fuel pump housing allowed raw fuel to pool in the passenger cabin following a prior manufacturer recall repair involving the disassembly of the same component.

I purchased fgis car from a used car dealership, for over $6,000. 00 , which is not a ton of money, but plenty enough to not have instant issues. Since my purchase in June 30, 2026, I have already had all of these issues occur. There is white smoke coming from the left tail pipe, it is sluggish when you push on the gas, there is black soot constantly on my rims that is extreamly hard to remove, the high pressure fuel pump jas failed, I can tell because the oil is higher then it was when o had the oil freshly changed, and it smells of gasoline. Inside the oil. The exhaust has stron smell of gasoline. My steering wheel has a loud clinking noise everytime I go over a speed bump on pull into my driveway. Just so many items consistently needing repair or replacement, even though I just had the fuel system cleaned, the oil changed, and filters, and. Oil filter too. I checked to see if any of my issues are covered by a recall warranty, because they all are recalled items for my car year, make, and model, but apparently hyunfai is only covering these dangerous recall items for ul to 10 years. These items shkuld be covered longer, because my carfax states that at least one of these recalled items had already been changed in 2018, and is already broken again!! Hyundai should have covered these extreamly high wear out car parts for a longer period of time, or for the life of the vehicle, if every 5 years your replacing a $1000. 00 part, not including labor, like the (hpfp) I was quoted by auto zone for over that price point!! "ridiculous"! another item is the air bag cover on the driver side windows area, of the body frame it is loose and keeps un-clipping, I am afraid that it is going to possibly just go off and kill me or something!! very disappointed right now, that I cannot get any of these recalled items replaced by the manufacturer!!.

See all problems of the 2011 Hyundai Sonata 🔎.

I own a 2023 Hyundai Sonata sel. Over approximately three years, the vehicle experienced four separate incidents involving sudden loss of engine power and recurring fuel injector/powertrain problems. Three of these incidents occurred while the vehicle was being driven on interstate highways, creating serious safety concerns. The first incident occurred on xxx, on [xxx] [xxx]. My daughter was driving the vehicle at the time when it suddenly lost power while traveling on the interstate. She had to maneuver the vehicle to the shoulder under unsafe traffic conditions. The second incident occurred on xxx, on [xxx] near [xxx]. I was driving the vehicle when it again experienced sudden loss of power while traveling at highway speed. The third incident occurred on xxx, in [xxx]. The vehicle experienced another significant power-loss event and required roadside assistance. The fourth incident occurred on xxx, on [xxx]. The vehicle again experienced a sudden loss of engine power while I was driving on the highway. Despite multiple repair attempts, including repairs related to the fuel injectors, the same or substantially similar power-loss problem continued to recur. Because the vehicle has repeatedly lost engine power while being driven, including multiple incidents at interstate highway speeds, I believe this recurring condition presents a serious safety risk. I am reporting these incidents so NHTSA can evaluate whether this may represent a broader safety-related defect affecting this vehicle model. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2023 Hyundai Sonata 🔎.

At approximately 130,000 miles, vehicle developed and internal coolant leak caused by a failed exhaust heat recovery system (ehrs) in the center muffler assembly, matching TSB 23-em-009h - a known manufacturing defect documented by Hyundai. Coolant has been slowly leaking internally into the exhaust system. The authorized Hyundai dealership initially failed to diagnose the internal leak and told me there was no leak and wanted to send me home. After pushing back, the internal leak was confirmed. If not caught, this defect could result in engine overheating or complete engine failure without warning. Hyundai motor America has denied goodwill coverage despite this being a documented manufacturing defect.

The vehicle’s fuel tank system failed catastrophically. The vehicle is currently grounded and has been inspected at the Hyundai dealership service center where it was towed. My safety and the safety of everyone on the road was put at extreme risk due to a severe fire and explosion hazard. Additionally, the defect caused the vehicle to suddenly lose power, sputter, and threaten to stall out while driving on a major interstate, creating an immediate risk of a high-speed rear-end collision. When attempting to add fuel, the pressurized tank forcefully spit gasoline back out of the filler neck, creating an active chemical and fire hazard at a public gas station. I was able to drive it home and called via Hyundai roadside assistance to have it towed to an authorized Hyundai dealership service department. On June 15th, 2026, the dealership service technicians officially confirmed the failure, stating that the fuel tank had expanded, the back floor base of the car was melting, and the vehicle was on the verge of exploding.

Recall remedy failure and manufacturer coercion my certified pre-owned 2022 Hyundai Sonata limited has been held completely out of service at an authorized Hyundai facility since June 2, 2026, due to severe fuel tank expansion under active NHTSA safety recall 25v-796 (Hyundai campaign 286). The dealership confirmed that the defective expanding plastic fuel tank ballooned with enough force to structurally warp and buckle the unibody center floor pan and frame rails. Rather than providing a safe, timely remedy under federal recall guidelines, Hyundai corporate and the dealership are attempting to coerce me into an unfair, non-statutory "voluntary trade-in" that simply pays off my remaining loan balance ($22,000) while completely wiping out the $9,000 in cash equity ($3,000 down payment and $6,000 in monthly payments) I have invested into the car. Upon rejecting this predatory trade-in offer, the manufacturer immediately threatened an additional 6 to 8-week delay to attempt a massive structural frame and unibody pull, which would bring the total out-of-service time to over 90 to 110 cumulative days. Furthermore, the dealership is actively withholding the internal diagnostic write-ups and structural alignment prints from me. I am requesting that the NHTSA investigate this recall remedy failure. Hyundai is using extreme delays (90+ days) and structural frame threats to force consumers to abandon their financial equity rather than issuing lawful, purchase-price repurchases for vehicles deemed structurally unsafe due to a manufacturing defect. I can't provide any documents as they have refused being able to provide me with any. Was told I would be emailed a copy from the dealership several times and they never end up sending over any information.

The safety recall (Hyundai recall 227, NHTSA recall 22v-312) repair on my 2013 Hyundai Sonata (previously completed by a Hyundai dealership prior to my purchase in April 2026) has suffered a critical mechanical failure. In may 2026, within 30 days of driving the vehicle, the recalled safety component completely failed while the vehicle was in operation on a public roadway. This sudden failure created an immediate safety hazard, resulting in complete fuel loss, forcing me to immediately pull over and have the vehicle towed to a repair facility (meineke). An independent mechanical inspection confirmed that the exact component covered under the manufacturer's original safety recall had failed again. Because a critical, manufacturer-designated safety recall remedy failed to permanently correct the underlying defect within 30 days of use, this vehicle remains an active safety hazard.

1. ) following Hyundai's 9c2 campaign update for the ecu that was completed back on may 27th, 2026, my 2015 Sonata went into limp mode [solid check engine light present] while I was accelerating up an on-ramp on the 2nd drive cycle since the update was performed. I was already far away from the dealership so I was forced to limp it to my local shop that I regularly use to have it checked out. It was confirmed that the code on the vehicle was p200a for intake manifold runners. Since the update was for smog regulation, the code was cleared in order to see if it would come back. Since then, it has not, however the vehicle continues to have one persistent problem. The rpms will dramatically dip and then surge back upwards while the car is coasting (no gas and no brake applied). 70% of the time, you can feel the car violently jerk as it appears to try and correct itself. 2. ) I've brought this car to multiple dealerships, have a case open with corporate and have also found that this is a systemic issue with this specific update in these cars. All and all, nothing has been done. I'm repeatedly turned away over and over again because their techs are only permitted to look into it once they have hard evidence of a fault. In this case, that would be a dashboard light. I'm told that I may only return if the check engine light comes back, which as I mentioned previously, posed a huge safety risk to myself the first time it appeared. If I can only go 55mph down the highway, I am at risk of being rear-ended or struck in some way. 3. ) the problem has not been reproduced by the dealer as they will not test drive it to see the dip and spike. However, the code was still pending for awhile in the vehicle before it cleared it on its own, so that was acknowledged by at least one place. 4. ) vehicle has not been inspected by anyone but a dealership and local mechanic. 5. ) no other signs prior to the vehicle limping out on me other than some acceleration concerns on may 27th, 2026.

I am submitting this complaint regarding a serious safety issue involving my Hyundai Sonata. While driving under normal conditions, my vehicle suddenly entered a low-power ("limp") mode without warning. The vehicle would not accelerate beyond approximately 30–35 mph, creating a potentially hazardous situation in traffic. At the same time, the check engine light began blinking. The sudden loss of power significantly reduced my ability to maintain traffic speed and safely maneuver the vehicle. This condition could have increased the risk of a rear-end collision or other accident. I brought the vehicle to an authorized Hyundai dealership (fred beans Honda of abington ph# 215-392-9020) for diagnosis. The dealership confirmed that the vehicle stored diagnostic trouble code (dtc) p1326, related to the knock sensor detection system (ksds). According to the dealership, the vehicle entered limp mode as a result of this fault. The abrupt reduction in vehicle power and speed occurred without sufficient warning and created a safety concern. I am reporting this incident so that NHTSA can investigate whether this condition represents a broader safety defect affecting Hyundai Sonata vehicles equipped with the ksds system. Vehicle information: make: Hyundai model: Sonata model year: 2014 I request that NHTSA review this issue and evaluate whether additional action is warranted regarding vehicles experiencing dtc p1326 and associated limp-mode operation.

I went shopping notice needed gasoline filled the tank 3/4 the next day I smell gasoline on my2013 Sonata hybrid VIN [xxx] inside the car and I did not notice any light alerts etc. , just the smell of gasoline inside the car. I ask for a ride I was scare to drive to the dealer on Monday 5/6/26 around 12:30 pm I called the dealer I was gonna dropped the car they told me diagnostic would take 3 days , I was afraid to cut on fire since my gas left a big stain and was wet gasoline in the parking lot at work. , I called Hyundai USA mentioned the problem I notice there is a recall for gas pump leaking and causes gas tank to crack recall for 17v-226 for fuel pump leaking 0n Hyundai Sonatas hybrid 2011-2016 my car is in the Hyundai dealership [xxx] [xxx] they called me telling me my gas tank is cracked cost of repair labor 2800. 00 and 280. 00 diagnostic charge and is ready for pick in 30 min no recalls I must pay for this service information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Was driving and stopped at a stoplight. When I went to drive it started sputtering and if I wouldn’t have driven into a gas station, it would’ve given out in the middle of the road. It wouldn’t let me switch to drive or reverse , only neutral or park. It threw a code p0301, cylinder 1 misfire. Had to get it towed. Now I have to get my spark plugs and fuel injectors replaced.

Evap code and catalytic converter malfunction. I bought the car used and had to have the engine replaced immediately, within a year the catalytic converter needs to be replaced and an evap leak code has been acknoweldged. The safety of the engine and fuel line is a concern, I am unsure of what risks myself or my family can be exposed to when but may include carbon monoxide poisioning, control of the vehicle due to acceleration issues. The components were inspected by multiple dealerships across 3 states. A warning light is visible and costs are astronomical.

This is a well-known and widely reported issue: 2013 Hyundai Sonata hybrid car, which has recently experienced the following dashboard alert: "hybrid system warning! safely stop and do not drive. " when the car is pulled over and shut down and sits for roughly 10 minutes, it starts up just fine and runs again for an undetermined amount of time, and then the alert will go off unexpectedly. This has happened twice, once the car was driven about 4 miles, and the alert came on, and the second time the alert came on as the car was started for the first time of the day. The car repair shop indicates that there are no codes saved when this happens. This is apparently a documented issue, where the codes are not saved, and difficult to diagnose by repair shops and dealers. It could lead to the vehicle completely shutting down while driving at highway speeds within traffic, which could cause a serious accident involving multiple vehicles and people. Why is this not recalled by the dealer and fixed? this has been reviewed by the dealer and by an independent repair shop. Is the NHTSA waiting for the death count to require the manufacturer to address the issue?.