2025 Hyundai Tucson Hybrid: check engine light

Filed May 26, 2026 · Driver assistance · MD

The rearview camera system on my vehicle intermittently and unpredictably malfunctions when shifted into reverse. Instead of displaying the live rear camera feed, the infotainment screen abruptly turns entirely green or blue, completely obscuring the rearward view. Component that failed: The rearview camera system and/or the main infotainment display module. The components are currently on the vehicle and available for inspection upon request. Safety risk: This failure severely compromises safety by eliminating critical rear visibility while backing up. The sudden loss of the camera feed creates a significant blind spot, increasing the risk of backing into a pedestrian, a moving object, or another vehicle, especially in busy parking lots or residential driveways. Dealer confirmation: Yes, this is a persistent defect that has been reproduced, confirmed, and documented by an authorized dealership service center during multiple service visits. Despite the dealer and the manufacturer being informed of this defect over two months ago, neither has been able to successfully repair the vehicle or provide a permanent fix. Inspected by others: The vehicle and the malfunctioning components have been inspected by the manufacturer’s authorized dealer technicians during multiple attempts to diagnose and repair the ongoing issue. Warning lamps/symptoms: There are no warning lamps, check engine lights, or error messages on the dashboard prior to or during the failure. The sole symptom is the immediate and spontaneous green or blue screen takeover on the center display precisely when the vehicle engages the reverse gear.

Filed Oct 2, 2025 · Transmission · PA

I purchased a brand new vehicle with only 12 miles on it. Less than 72 hours later I had to have it towed. I turned the vehicle on and tried to put it in drive and 2 error messages came up. One was the check hyrid system and the other was a check engine. The diagostic tool on the car says it is related to transmission. The dealership doesnt have time to look into it yet and the Manager from the dealership I bought it from offered no solutions since I travelled home to another state.

Filed Sep 1, 2025 · Acceleration, Driver assistance · CA

I purchased a brand-new Hyundai vehicle on [XXX] from Dublin Hyundai. Since purchase, the vehicle has exhibited repeated, serious defects that compromised the safety of my [XXX] baby and family. Timeline of Events: [XXX] – Vehicle purchased new. Safety concerns arose within weeks of ownership. July 16, 2025 – Vehicle dropped off for major issues: camera display failures, heads-up display malfunctions, and random security errors. Vehicle remained in service for over two weeks. August 2, 2025 – Returned with the check engine light on and a scratch on the deck. August 3–4, 2025 – Dropped off again; dealership instructed that the fuel level must remain between 50–70%. August 11, 2025 – Dropped off again; a loaner vehicle provided was unsafe — gear shift failure, body control system errors, infotainment failure, and inability to lock the vehicle. This put my baby’s safety at direct risk as the loaner could not be secured or reliably driven. August 19, 2025 – Vehicle returned with new scratches and multiple issues still unresolved. Late August 2025–Present – Vehicle was relocated to San Jose without my consent. I only know its location from the Hyundai app, which frequently alerts: “Battery level is below normal. Please check that vehicle lights and accessories are switched off to avoid battery drain.” I have not been provided proper updates from Hyundai or the dealership. Safety Risk: Repeated mechanical and electronic failures in both the new vehicle and the loaner. Vehicle is unreliable, unpredictable, and unsafe for transporting a young child. Manufacturer and dealer have failed to provide a safe, operable vehicle despite multiple repair attempts. I am filing this complaint because these issues pose a serious safety risk to me, my infant child, and other drivers on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 10, 2025 · Electrical · NV

The Heads Up Display and Digital Instrument Panel suddenly go blank as if switched off resulting in no speedometer, tachometer, malfunction indicator lamps, temperature gauge, TPMS, and integrated ADAS components including lane keeping, blind spot monitoring, adaptive cruise control, 360 camera functionality. These failures are intermittent and can last for seconds or minutes while operating the vehicle. Onset seems to be related to ambient temperatures, routine ride disturbances, acceleration and deceleration activities in the normal course of vehicle operation. The issue has been a topic of discussion on several online owners forums. Owners report that Hyundai dealers have attempted to resolve this issue unsuccessfully with harness replacement, pin and connector retensioning efforts, and display replacement.

Filed Jun 16, 2025 · Electrical, Engine · TN

Battery Management System failed Safety-Could not drive on interstate. Very unsafe. Dealer inspected problem afterwards. Warning lights appeared at time of problem. No warnings before. No signs of problem before it happened. SYNOPSIS: After driving through a torrential thunderstorm on the interstate (06-13-25) and as we were getting ready to slow down for our exit on the interstate, we hit the brakes and our SUV gave us a warning. The warning said, "Battery Management System Discharge". The SUV is a hybrid. At this point the SUV locked into E V mode. Our SUV would only go 10 mph which was very dangerous. It should be able to go up to 35 mph in E V mode and then past that, switch into gas mode. As stated, we could only go about 10 mph. We made it to our exit and found a spot to pull off the ramp. We let the SUV sit for a few moments and turned it off. We let it sit for a minute and then turned the car back on. The SUV when we turned it back on gave us a check engine light and still would not go over 10 mph. Luckily we were stopping for dinner. We were able to proceed to our destination. After dinner around an hour or so, when turned the vehicle back on, the SUV still gave us a check engine light. but was able to drive normally and switch between E V and gas modes. We made it home safely at the end of the weekend on 06-15-25. On 6-16-25 we took the SUV to be looked at by the dealer we purchased it from. Our phone app showed code DTC P0AA600. We gave the code to the staff. The staff inspected the SUV. The report stated, "customer states stopped driving and there code P0AA600 Battery Warning Light NPF Could not duplicate problem. Tech scanned for codes Code P0AA600 was found as a history code. Tech checked live data and everything came back within spec. Followed the flow chart procedure for the code. Check for BMS isolation faults none found. Check 12volt battery. Battery is good". We drove it home and filed this report.

Filed Jan 3, 2025 · Driver assistance · MD

While driving in a 70 mph speed zone on [XXX] , I tried to engage the cruise control but it would not activate. After repeated tries i finally was able to get a response and the cruise control engaged but only for about 15 seconds then warnings saying I was not paying attention to the road flashed on the windshield monitor along with check engine light, followed by vehicle slowing. I turned off the cruise control and was able to resume control of the car. This happened twice within 15 minutes so I gave up trying to use the cruise control. I wear progressive prescription transition eyeglasses which turn gray upon contact with sunlight. It was a bright sunny day when this event took place. I bought the car Dec 4 2024. When I contacted the dealers service department, they said the nearest appointment was not until February and they might need the car for up to two weeks to determine the problem. I went online and found that other owners had been complaining about this since April claiming that sunglasses were a problem for the radar camera used in this system. One driver put black tape over the camera to stop the problem. One driver switched sun glass makes and was able to use the system. Another driver adjusted the steering column to solve the problem, but all of these are work arounds for a defective design. You can locate these other complaints by searching "adaptive cruise control problems of Hyundai Tucson" complaints go beyond April 2023. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)