2023 Hyundai Tucson Hybrid Transmission and drivetrain Problems

“My suv is a hybrid. I slowed down before making a right turn to check if it was clear before continuing with the turn. I see one car and its pretty far away. My gas engine switch off to go into EV. I step on the gas and my suv goes no where for about 5 seconds. Now the car down the street is approaching me fast. Finally the gas engine kicks on my suv started moving. The other car honk and went around me.”

“On June 3, 2025, I experienced a terrifying and dangerous incident while driving my 2023 Hyundai Tucson Hybrid on a three-lane road at approximately 50 mph. Without any warning, the gas pedal became completely unresponsive, and the car abruptly decelerated from 50 to 20 mph. This sudden loss of acceleration was incredibly frightening, especially with vehicles close behind me that nearly collided with mine. There were no warning lights or check engine alerts. Fortunately, I was able to safely cross all lanes and pull over before having the vehicle towed to a local Hyundai dealership. …”

“On four occasions in the last five weeks, I have been driving at relatively low speed (20-30 MPH), and when I attempt to accelerate, the vehicle will not accelerate when I press the gas pedal. The tachometer shows the RPMs are maxed out, but the vehicle does not accelerate no matter how hard I press the gas pedal. I have to pull off the road, turn off the vehicle, and restart to fix it. I am certain I have not accidentally hit any buttons or switches each time. I have tried changing drive modes (eco/normal/sport) and using the paddle shifters and that has no effect. …”

“Two times in the last two weeks of March and about 10 times since we purchased the vehicle new in December 2022, after starting the vehicle and backing out of our garage onto our street, then stopping then shifting from reverse to drive and going no faster than 15-20 mph for about 300 yards, the Tucson revs up to about 3ooo-3500 rpm and will not shift into second gear. After about 1 minute or so it seems ok. But until then the transmission does not shift smoothly like it did the first six weeks of ownership. It did not operate like this until about the beginning of February. …”

“Vehicle exhibits a dangerous 2-to-3-second delay/total loss of accelerator response at low speeds or rolling stops (5–15 mph). When stepping on the gas pedal to pull into traffic or make a turn, the vehicle hesitates completely before engaging power, even when the pedal is fully depressed. This creates an extreme crash risk when entering oncoming traffic or merging.”