2016 Hyundai Tucson electrical problems

ELECTRICAL SYSTEM

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 complaint #11757119 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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 complaint #11752545 — an unverified report by a vehicle owner.

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 complaint #11731943 — an unverified report by a vehicle owner.

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 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 complaint #11729862 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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 complaint #11727692 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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 complaint #11726365 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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 complaint #11710087 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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 complaint #11698032 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

While driving, on multiple occasions all warning lights will come on and the car will start to lose power. The headlights constantly go off and come back on randomly. Turn the blinker on and the rear window wipers intermittently come on. The vehicle has been towed to the dealership so many times and we either get “can’t duplicate” or needs oil change, which had just been done. Now we are being told that we need a second engine replacement. Unfortunately this time it will not be covered by warranty. We have reached out to Hyundaii Motors 3 times and the BBB Auto but they stand behind it not qualifying for the Lemon Law. Hyundai should have some obligation as all these issues are “known issues” just not recalls.The 2016 Hyundai Tucson is not a safe vehicle.

NHTSA complaint #11691476 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Front passenger door will not open using the key fob. It has to be opened from the inside door handle. If there was an accident the door would not be able to open from the outside. This is a serious safety issue. There have been numerous issues with this problem. Hyundai should recall these vehicles for this safety issue

NHTSA complaint #11690251 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

For about a year I have had issues with my car not accelerating in stop and go traffic. I push the gas pedal and it moves a little then will not go for about 20 seconds. Sometimes the engine will flutter. I have taken it to Hyundai and was told no diagnostic codes show and they can't find anything wrong despite bringing the reports from my auto shop of these things occuring. My car is going in yet again this week because this issue continues to get worse and I have almost caused several accidents in traffic due to not being able to drive. There is a recall however Hyundai says my car is not in the recall despite the same issues the recall is for. I have all routine service done when needed and have taken care of this vehicle but I feel like Hyundai should step up because this is very dangerous not only for myself but other commuters as well.The Hyundai dealership literally said they just have the sign on their building they don't support these issues

NHTSA complaint #11687044 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

i bought the car used, i took it in for diagnostics on my transmission. they claimed i needed a new one, not claiming i need a new clutch. my car’s model and year match the DCT recall problems. but not the vin. when my car was in the heat or accelerating it had the same issues listed. i believe this is a manufacturing issue.

NHTSA complaint #11680595 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

While driving I noticed my ABS, Traction Control, AEB, and a couple of other lights came on. Upon restarting my car it was still there but the lights went away on their own after a few minutes of driving. They have been periodically turning and and off as I've driven the past couple of days. I went to the local mechanic shop who performed a diagnostic and found it to be a faulty left rear wheel speed sensor. When researching online, I've come across many people with the same make, model, and year as my car that have experienced this issue.

NHTSA complaint #11672809 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2016 Hyundai Tucson. The contact stated that while driving at undisclosed speeds, the transmission started slipping while accelerating. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 16V628000 (Power Train, Electrical System). The contact called an independent mechanic who provided a printout of a recall. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 108,000.

NHTSA complaint #11644742 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The front passenger window regulator failed in Jan 2025. Before the complete fail, the power window was becoming sluggish when lowered/raised. I just paid $1,000 to have the dealer repair. I have seen dozens of online items regarding the identical issue. I consider it a safety issue because of easy entry to the vehicle interior and contents, including inclement weather that can damage interior electrical components

NHTSA complaint #11642614 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The front passenger and rear window regulators failed within 1 month of each other without any warning or symptoms. After inspection, it was identified that the plastic window regulator was completely shattered within the door. There was no damage to my vehicle that could have caused this. With the window regulator not working, my windows were not able to be opened or closed. The front window regulator actually got stuck in a down position. After some additional research online, I found several others who have had the same issues with the window regulators on their 2016 Hyundai Tucsons. This is a safety hazard because if I were ever be in an accident or a place where I need to exit through my windows and they are unable to go up and down for a safe exit. I have spent over $1600 in repairs to fix an issue that is clearly a defective part in the windows.

NHTSA complaint #11636429 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Rear passenger door won’t open from inside or outside. Safety concern

NHTSA complaint #11634273 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

There is a lot of oil consumption, and the turbo is shot. It sits in the back of the engine, which is not collecting air.

NHTSA complaint #11627188 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I’m the original owner of a 2016 Hyundai Tucson with 72,000 miles. I’ve recently encountered an issue where the front passenger side window is stuck down and won’t move. I’ve had it diagnosed at the dealership and found that this seems to be a common issue with this model year, related to the window regulator. I understand my vehicle is slightly out of the 5-year/60,000-mile warranty, however; this issue has made my car vulnerable to weather damage and theft, and it’s affecting my ability to use it safely. I’ve always maintained my vehicle according to Hyundai’s recommendations, and I believe this failure is premature for a part like this.

NHTSA complaint #11626834 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Three weeks ago my dash board lit up like an orange Christmas Tree, with "ABS failure" warnings. I found the Hyundai recall notice in our car file. It said that when the dash warnings appeared, the danger of an engine fire was imminent and that should contact the Dealer that I bought the car from (Hyundai Motors- Naples, Florida-USA). I did so. personally. An appt. was scheduled. This morning (Fri. 11/15/24)upon arrival, a pleasant young woman informed me that Hyundai sent out lots of notices like this, but they didn't apply to my vehicle. I showed her the recall notice with my car's Vin number printed on it. She went back to her boss who told her "We fixed that for him three years ago," Now, I am not certain of anything, but I NEVER brought the car in for an ABS system fix three years ago. I didn't know that I even had an "ABS" system until three weeks back, when the dash board lit up. Politely, I asked the young woman to bring my car back out, as we were done. She offered to make another appointment to "look" at the dash indicators." I said" No, we are done." So, now what do I do? Is the car safe to drive or not? I own and operate an older Hyundai Santa Fe as well. I would be appreciative of your advice. Thank you in advance for your cooperation. The Tucson is a good car. I just don't want it to blow up on me. [XXX] , Florida-USA INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11625605 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Front passenger door won’t open Defroster/heat won’t work on drivers side

NHTSA complaint #11624465 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Purchased a 2016 Hyundai Tucson with approx. 79,000. Was driving with all windows down one day. From the driver side window switch panel, I attempted to roll up the rear, left window.. The window would not roll up. The window rolls down when using the driver’s window switches for the left, rear window, but will not roll up. The rear left window switch will operate the window up and down only. Discovered this problem when going through a drive through car wash and the window would not roll up. Needless to say, the interior of my car got a good cleaning that day.

NHTSA complaint #11620741 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

3 of my window motors do not work and my windows now will not roll up or down.

NHTSA complaint #11620812 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Passenger window regulator went out, then my window and my back passenger window went out and now I have 2 windows that cannot stay up and have paper holding them up.

NHTSA complaint #11619469 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

All four window regulators have failed. The plastic gear has totally disintegrated and has had to be replaced. I have noticed that this has been reported by customers numerous times. I hope that we may be reimbursed for the failure of the part since it is very, very common among these models. I have retained all receipts for parts and labor.

NHTSA complaint #11613000 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Driver window won’t go up & front passenger window won’t go down.

NHTSA complaint #11611520 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2016 Hyundai Tucson. The contact stated while driving approximately 40 MPH, the vehicle lost motive power. The contact depressed the accelerator pedal and the vehicle lunged forward. The contact stated no warning light was illuminated. Additionally, the contact stated that when the vehicle was stopped, after depressing the accelerator pedal, the vehicle hesitated and then lunged forward. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 16V628000 (Power Train, Electrical System); however, the VIN was not included. The failure mileage was approximately 140,000.

NHTSA complaint #11608953 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I own a 2016 Hyundai Tucson and have noticed that NONE of the doors other than the driver door will open either from the inside or outside. I have small children that I drive to and from school, activities. If we were to get into a wreck or were to run off rode into a body of water my children could drown or die due to doors not opening. This seems to be a very common issue with Hyundai and needs to be addressed and recalled and fixed by dealership immediately!

NHTSA complaint #11601027 — an unverified report by a vehicle owner.