2022 HYUNDAI TUCSON HYBRID Complaints

This relates to an Intermittent Braking Anomaly that started occurring within 1 year of this Hyundai Tucson Hybrid Ltd. purchased "New" in Aug. 2022. The 1st Service Invoices (Jun23 & Dec23) only reflected "Customer Requests Complimentary Maintenance Plan Tire Rotation," but did not reflect the braking anomaly; eventhough the braking anomaly was discussed with the Service Advisor at those times. There have been at least 7 Service Appointments that this braking anomaly was identified by the vehicle Owners to the Service Advisor. This has been, and is, an intermittent anomaly/problem that occurs most often when slowing down to stop, and especially when going downhill. There is a very noticeable "Shaking/Shuddering/Pulsating" recognized by the Driver, and when present, Passenger(s) also. On average, this occurs 1x/week , and inconsistent. One time it started pulling left towards oncoming traffic. Another time it was violent shaking, and almost unable to stop at stop sign. The Dealership 1st attempted to repair this by refacing front rotors in 2024. This did not fix the anomaly. In Dec 2024, returned to the Dealership, and a Tech. was able to duplicate the braking anomaly. With that, they then replaced both Front Rotors (51712-L1100 Disk) and Brake Pads (58101-P0A011 Pad Kit) in Jan. 2025. The braking anomaly continued later that very same day the Front Rotors and Brake Pads were replaced! Returned to the Dealership the next day and discussed this braking anomaly with the Service Mgr., and He and the Service Advisor drove it for about 15 minutes but were not able to duplicate the intermittent braking anomaly. Both Service Mgr. and Sales Mgr. suggested to buy new vehicle. Returned to Dealership in Feb. 2025 for about 2 weeks for them to again evaluate. They were unable to duplicate the braking issue after several test drives and multiple individuals driving. This anomaly continues and neither Hyundai Corp. nor Dealership will do anything else to solve this anomaly.

- Component that Failed: The Panoramic Sunroof (glass side that opens) - Safety Risk: Glass shattering above your head while driving, tons of glass falling below to the driver & passengers in the car | Shock of a loud gunshot while driving - causes wrecks - Vehicle Inspected: Currently at Hyundai, figuring out what to do - Warning signs: ABOLSUTLEY NONE - spontaneous explosion My husband, two friends, and I were traveling down the interstate at 55 mph, we heard a loud bang (like the sound of a gunshot)! Our panoramic sunroof sunshade was pulled back with the sunroof closed. Instantly, the sunroof exploded into a million tiny pieces of glass that partially rained down on our heads and shoulders and all over the rest of our car. It was quite a startling sound. There was a hole about 10 inches across in the sunroof and more pieces were continuing to fall out. To protect our heads, I closed the sunshade. Then, we could hear pieces hitting the shade and glass falling behind us on the road. Once we got home, the hole became much larger.

The contact owned a 2012 Kia Optima. The contact stated while driving 65 MPH, the vehicle lost motive power and was driving slowly. There was no warning light illuminated. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that the failure persisted. The contact stated that recently, while driving 65 MPH, the vehicle lost motive power and stalled with an unknown message displayed. The contact was helped over to the side of the road. The vehicle was restarted. The manufacturer was made aware of the failure. The failure mileage was approximately 20,000.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The hybrid powertrain system, transmission, or engine appears to be malfunctioning. The vehicle hesitates or stalls when pressing the gas, losing power as if it doesn’t recognize when to transition between EV and gas mode. Yes, the vehicle is available for inspection upon request. 2. How was your safety or the safety of others put at risk? The issue caused the vehicle to lose power unexpectedly, particularly while driving at highway speeds, which forced me to pull over multiple times for safety reasons. This happened on [XXX] before the [XXX] Tunnel, creating a hazardous situation in heavy traffic. If the vehicle stalled at the wrong moment—such as in an intersection or while merging—it could significantly increase the risk of a crash. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? No. I have taken the vehicle to a Hyundai dealership, but no official errors or diagnostic trouble codes (DTCs) have been detected. The dealership has not confirmed the issue unless I agree to high-cost diagnostics that may not guarantee a resolution. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been looked at by a Hyundai dealership, but no official findings or resolutions have been provided. The issue persists, and no recall or technical service bulletin (TSB) has been mentioned to me as a possible cause. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? No warning lights, error messages, or dashboard alerts appeared before or during the power loss. The issue first started occurring at approximately 35,000–40,000 miles and has continued to around 50,000 miles. The first time I noticed the problem was during a long-distance drive from Los Angeles to CO INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

Hyundai has a service bulletin for their 12V battery but isn’t notifying owners. Today my vehicle stopped working and lost all acceleration on a busy 3 lane street that is 55mph. I was able to limp it to a left turn lane where I had to research the issue and found many others had instances like mine. The battery stops working and subsequently stops the vehicle from accelerating and tells you to ‘stop safely’ with no warning or indication that you’re about to stop moving on a road.

This problem has happened 4 times in the last two months. After about 15 minutes of either moving very slowly, or being parked and idling, the engine does not start when the gas pedal is pressed. The car accelerates as normal since it is in EV mode, giving the driver the impression the car is operating properly. After driving around 1/4 mile the car loses drive power very quickly - full speed to zero in several seconds - because the car is in EV (battery) mode only. This sudden loss of power twice occurred in traffic, which increased the risk of an accident. Fortunately the car was not running at highway speeds and the car was pulled over safely despite the traffic. After the car lost all drive power, the warning “check hybrid system“ appeared on the instrument cluster. There were no warning lamps, messages or other symptoms prior to the problem occurring. Twice a dealer was unable to reproduce or confirm this problem. An independent service center also could not reproduce or confirm this problem. The vehicle is available for inspection, but has not been inspected other than the dealer and the service center.

12-volt battery dead after 5 days sitting in garage without starting the car. As a result, the doors could not be opened without removing the cap covering the door keyhole. This cover was very difficult to remove and required roadside assistance. The dealer service department advised on 10/28/24 that the battery required replacement but that no batteries were available. The dealer service department advised that procuring a replacement 12-volt battery would take 1 to 3 months. The car is in the possession of the dealer service department and cannot be driven as of today, 11/23/24.

While driving down interstate, the panoramic sunroof panel above the driver and front seat passenger spontaneously exploded and shattered. This occurred on a clear sunny morning and there were no other vehicles on the road in the area at the time.

After dark, the headlights will randomly switch from auto to parking lights to headlights on or completely off. When using the selector sometimes takes a few seconds to switch from auto to off and sometimes won’t switch off. This just started three days ago. It happens while it’s parked and while driving the lights will shut off. You can use the switch to turn them on but both auto and off take a while to be selected.

A week ago, I was driving my 2022 Tucson Hybrid Limited on the highway on my way to work around 7:50 a.m. It was a bright day, good weather. I was in the center lane when my car suddenly braked HARD and came to a stop on the highway! My foot was still on the gas pedal, but the Automatic Emergency Braking light was on. I panicked because I had no control over what the car was doing. Thankfully, I was not rear-ended and didn't cause an accident. I put on my hazard lights, shifted into park on the highway's center lane, then back into drive and it seemed fine. There was not really any traffic in front of me that I remember, but there were some cars on either side and behind me that had to swerve around me. I don't trust this car anymore. It is going to get me or someone else killed. I took it to the dealer 2 days ago and the initial inspection didn't show any problems or error codes. They told me I could have it back since there didn't seem to be a problem or they could give me a loaner car and keep testing my car. I have a loaner. I hope they find something wrong with the car, otherwise, I am afraid of my car getting me or someone else killed. I am especially scared after reading about all the others here who have had this same issue.