NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
215 reportsClear category filterMileage unknown · Sep 9, 2026
Electrical SystemEngine
The vehicle unexpectedly entered 'Limp Mode' due to engine tracking code P1326. The vehicle severely restricts engine power and RPMs while driving on public roads, preventing normal acceleration. This creates a severe safety hazard as the vehicle cannot safely merge into oncoming traffic, accelerate away from intersections, or m…
Read full complaint
The vehicle unexpectedly entered 'Limp Mode' due to engine tracking code P1326. The vehicle severely restricts engine power and RPMs while driving on public roads, preventing normal acceleration. This creates a severe safety hazard as the vehicle cannot safely merge into oncoming traffic, accelerate away from intersections, or maintain basic road speeds, putting me at a high risk of being rear-ended.The fault is under Hyundai Theta II Txxm. I have been given the runaround by both hyunday corporate and the local dealer.
NHTSA ODI #11763199
Mileage unknown · Aug 15, 2026
Electrical SystemExterior Lighting
This problem was observed about 1 month ago: While driving and headlights set on AUTO, during the day, and the light switch NOT on, the dashboard would indicate the lights were ON, for just a second or two, and would go off. At night with the headlights set on AUTO and the headlights ON, while driving, the headlights go OFF and…
Read full complaint
This problem was observed about 1 month ago: While driving and headlights set on AUTO, during the day, and the light switch NOT on, the dashboard would indicate the lights were ON, for just a second or two, and would go off. At night with the headlights set on AUTO and the headlights ON, while driving, the headlights go OFF and ON briefly (1-3 seconds) causing a dangerous situation as visibility of road is lost. This condition was initially observed at night, after using the turn signals (left/right), but is now happening with greater frequency while driving without using turn signals. I Will schedule a visit with dealership to report/confirm problem.
NHTSA ODI #11757119
Mileage unknown · Jul 23, 2026
Electrical SystemForward Collision AvoidanceLane Departure
All the warning lights in the day lit up. Brake, LDWS, AEB, outside air temperature won’t read and the a/c blows hot. $486 to diagnose at dealer and they state that it’s an electrical issue due to a bad vacuum pump. I can’t get an answer as to whether the vacuum pump safety campaign was completed or not. Dealer wants $1500 to re…
Read full complaint
All the warning lights in the day lit up. Brake, LDWS, AEB, outside air temperature won’t read and the a/c blows hot. $486 to diagnose at dealer and they state that it’s an electrical issue due to a bad vacuum pump. I can’t get an answer as to whether the vacuum pump safety campaign was completed or not. Dealer wants $1500 to replace.
NHTSA ODI #11752545
Mileage unknown · Apr 17, 2026
Electrical System
Took vehicle to dealership and had it diagnosed for the electrical system faults cause all the dashboard warning lights came on. Shop said it could be bad vacuum pump.
NHTSA ODI #11731943
Mileage unknown · Apr 8, 2026
Electrical System
Three power window regulators have failed on my 2016 Hyundai Tucson within a six-month period. The front driver and front passenger windows both failed first and required replacement. The rear driver-side window has now also failed and is currently stuck in the open position. When the failures occur, the window will move up sli…
Read full complaint
Three power window regulators have failed on my 2016 Hyundai Tucson within a six-month period. The front driver and front passenger windows both failed first and required replacement. The rear driver-side window has now also failed and is currently stuck in the open position. When the failures occur, the window will move up slightly but then drop back down or will not stay closed, indicating a failure of the regulator mechanism rather than normal wear. The fact that multiple window regulators have failed in a short period suggests a defect or premature failure of this component. This creates a safety concern because one window is stuck open, exposing the vehicle interior to weather, reducing security, and potentially affecting driver visibility and safe operation. This appears to be a known issue with this model year, but my vehicle is not included in any recall.
NHTSA ODI #11729862
Mileage unknown · Mar 28, 2026
Electrical SystemPower Train
All dash warning lights are on and dash lights have a intermittent bright light surge. Hard to shut off engine and have to disconnect battery for electric power to shut off. Very noticeable hesitation in acceleration starting to drive
NHTSA ODI #11727692
Mileage unknown · Mar 23, 2026
Electrical SystemEngineSteering
I am writing regarding the diagnosis provided for my vehicle [XXX] . I was informed today that the engine failure is being attributed to a "water hose failure" rather than the engine defects covered under the active safety recall/settlement regarding Connecting Rod Bearing failure. As there were no coolant leaks before or after …
Read full complaint
I am writing regarding the diagnosis provided for my vehicle [XXX] . I was informed today that the engine failure is being attributed to a "water hose failure" rather than the engine defects covered under the active safety recall/settlement regarding Connecting Rod Bearing failure. As there were no coolant leaks before or after the vehicle was towed to your dealership. I am formally requesting a re-evaluation and more detailed evidence. Given the known history of these engines seizing, I need to ensure this diagnosis is absolutely correct and not a symptom of the internal defect. I request the following information be provided immediately: 1. Evidence of Overheating: Did the vehicle store any specific "overheating" codes in the ECU prior to the engine shutting off? 2. Oil Pan Inspection: Has the oil pan been removed to inspect for metal shavings or debris? If the connecting rod bearings failed (the recall issue), there will likely be metallic debris in the oil, regardless of the condition of the water hose. 3. Bearing Clearance Test (BCT): Was the mandated Bearing Clearance Test performed? If not, I request that this be done, or that a teardown be performed to inspect the rod bearings specifically. 4. Causal Link: Can you provide evidence that the water hose failed causing the engine to seize, rather than the engine seizing causing a pressure spike that damaged the cooling system? I have no transportation to work and school. They would not honor a loaner. This has happened since Decemeber of 2025. I await your written response with the requested photos and technical data. My case # with Hyundai Consumer Affairs # XXX Please provide: All relevant photographs Freeze-frame and ECU data Technician diagnostic notes Results of oil pan inspection and/or BCT (if performed) Any physical evidence supporting the stated cause of failure I request this information be sent in writing at your earliest convenience. Thank you for your attention to INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U
NHTSA ODI #11726365
Mileage unknown · Jan 10, 2026
Electrical SystemEngine
My 2016 Hyundai Tucson experienced engine failure consistent with known Hyundai engine defects. After reporting multiple battery outages, rapid oil consumption, and limited acceleration ability, outstanding warranties were checked and updated. However, the issues persisted, and the engine failed suddenly while I was driving. Hy…
Read full complaint
My 2016 Hyundai Tucson experienced engine failure consistent with known Hyundai engine defects. After reporting multiple battery outages, rapid oil consumption, and limited acceleration ability, outstanding warranties were checked and updated. However, the issues persisted, and the engine failed suddenly while I was driving. Hyundai denied warranty coverage without proof of the issues being unrelated to the warranty. This presents a serious safety hazard due to unexpected engine failure.
NHTSA ODI #11710087
Mileage unknown · Nov 6, 2025
Electrical SystemEngine
car often does not accelerate when hitting the gas. Was turning onto highway from a stop car did not accelerate causing other vehicle to swerve to avoid hitting me as my car would not move. Couple seconds later it moved
NHTSA ODI #11698032
Mileage unknown · Oct 27, 2025
Electrical SystemEngineFuel/propulsion SystemFireInjury
As I was driving I was stopped & told my car was on fire. I immediately stopped & hopped out & less than 30 seconds later half of the hood caught heat/fire & flew into the windshield breaking it. At least half The car is burnt to ashes
NHTSA ODI #11695722
Official recalls
5Sep 4, 2020
Hyundai Motor America (Hyundai) recalled certain 2019-2021 Tucson vehicles on September 4, 2020. On December 30, 2020, Hyundai expanded the recall population, and added certain 2016-2018 Tucson vehicles. The Anti-lock Brake Hydraulic Electronic Control Unit (HECU) could corrode internally and cause an electrical short, possibly resulting in an engine compartment fire.
Consequence & remedy
Consequence: An engine compartment fire can increase the risk of injury or crash.
Remedy: Hyundai will notify owners, and dealers will replace the HECU fuse. For 2019-2021 model years, the Electronic Stability Control (ESC) software will also be updated. Recall repairs will be performed free of charge. Owners are advised to park outside and away from structures as a precaution until the recall repair is complete. The recall began November 2, 2020. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 195.
Nov 21, 2016
Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.
Additional source detail variants (2)
Trailer Hitches
Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."
Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.
Electrical System:wiring
Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."
Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.
Aug 30, 2016
Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.
Consequence & remedy
Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.
Additional source detail variants (2)
Electrical System:software
Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.
Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.
Power Train:automatic Transmission:control Module (tcm/pcm/tecm)
Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.
Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.
May 24, 2016
Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 19, 2015 to March 14, 2016. In the affected vehicles, if the primary hood latch has been released, and the vehicle is driven, the secondary hood latch may not hold adequately secure the hood to prevent it from opening while the vehicle is in motion.
Consequence & remedy
Consequence: If the primary hood latch is inadvertently released and the secondary latch cannot secure the hood, the hood may unexpectedly open while driving, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the secondary hood latch, free of charge. The recall began on June 30, 2016. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 145.
Mar 10, 2016
Hyundai Motor America (Hyundai) is recalling certain model year 2016 Hyundai Tucson vehicles manufactured May 26, 2015 to January 15, 2016 and equipped with an accessory trailer hitch harness either included with the accessory trailer hitch or sold as a service part. In the affected vehicles, when the vehicle's engine is running and the brake lights are illuminated, if the turn signal is activated, the trailer turn signal lights will either turn off or remain continuously illuminated (not flash). As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard Number 108, " Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: Failure to illuminate the trailer's turn signal lights would prevent the communication of the driver's intent, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will update the tow hitch harness, free of charge. The recall began on May 2, 2016. Owners may contact Hyundai customer service at 1-855-371-9640. Hyundai's number for this recall is 142.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1DP22003 · Loss Of Motive Power
Opened Sep 12, 2022 · Closed Dec 12, 2023
Status: closed (inferred from source dates) · Engine
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Illustration