2016 Hyundai Tucson electrical problems

Filed Oct 14, 2026 · Electrical, Locks · 95,000 miles · SC

The contact owns a 2016 Hyundai Tucson. The contact stated that while driving at 15 MPH, the vehicle failed to accelerate when the accelerator pedal was pressed and released repeatedly at 1,200 RPM. The transmission warning light illuminated. Additionally, the rear driver's and rear passenger's side doors failed to open. The dealer was notified of the failure but informed the contact that there was no recall associated with the VIN. The contact associated the failure with the federal safety agency Campaign Number: 16V628000 (Power Train, Electrical System); however, the VIN was not included in the recall. The manufacturer was notified of the failure by email. The failure mileage was approximately 95,000.

Filed Sep 22, 2026 · Brakes, Electrical · LA · fire

Caliber / Breaks sticking after changing them, Car stopped in the middle of traffic after they locked up. Changed them again Brought to Hyundai dealership I was told Caliber needed changing . It was changed Caliber caught fire while driving Now Hyundai says the ABS system has to be replaced

Filed Sep 9, 2026 · Electrical, Engine · NM

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.

Filed Aug 15, 2026 · Electrical, Lights · RI

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.

Filed Jul 23, 2026 · Driver assistance, Electrical · WV

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.

Filed Apr 17, 2026 · Electrical · PA

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.

Filed Apr 8, 2026 · Electrical · VA

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.

Filed Mar 28, 2026 · Electrical, Transmission · PA

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

Filed Mar 23, 2026 · Electrical, Engine · FL

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

Filed Jan 10, 2026 · Electrical, Engine · MS

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.