2023 Hyundai Elantra Hybrid: jerking or lurching

Filed Jan 4, 2024 · Driver assistance, Transmission · GA

Horn has now shut off at 11k miles. Jerky shifting transmission Combustion engine failed to start several occasions. Many error warnings for the lane keep assist

Filed Nov 25, 2023 · Engine, Transmission · NJ

Car still jerks forward after their “repair” attempts. Car will also not accelerate on the highway and won’t go past 55 without engine codes and the car going limp

Filed Oct 26, 2023 · Acceleration, Driver assistance · 1,500 miles · OH

The contact owns a 2023 Hyundai Elantra. The contact stated that while driving at highway speeds, the Forward Collision Avoidance: Automatic Emergency Braking brake light illuminated, and the vehicle experienced phantom braking, causing the tires to skid and the speed to abruptly decelerate. Moments later the Forward Collision Avoidance: Automatic Emergency Braking light turned off, and the vehicle operated normally. The failure had occurred on several occasions. Additionally, the vehicle had experienced unintended acceleration, causing the vehicle to lurch forward. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of failure. The failure mileage was 1,500.

Filed Oct 11, 2023 · Transmission · FL

I have been encountering a series of troubling and erratic issues with my vehicle. These problems occur under various driving conditions, including acceleration, steady-state driving, and braking. However, the most prevalent and problematic occurrences seem to transpire during acceleration and braking. During acceleration, I've observed inconsistent behavior. Sometimes, the car shifts smoothly, with minimal torque drop between gears. On other occasions, the vehicle accelerates initially but then abruptly loses all power between gears, resembling the sensation of someone engaging the clutch in a manual vehicle and shifting slowly. This results in a temporary power loss lasting 1-2 seconds, followed by an over-revving and clutch slip, leading to an unintended surge in acceleration. The issues I've encountered during braking typically begin with a chattering noise and vibrations that seem to be an imbalanced or shocked reciprocating mass, I can assume maybe one of the clutches/flywheel . This is often followed by decreased brake pedal linearity, requiring increased brake pedal pressure to stop. This normally results in an unintended aggressive forward jerk just before coming to a stop, akin to someone releasing a clutch on a manual transmission vehicle too quickly when downshifting while the engine speed is too low. The steady-state symptom occurs less frequently but occasionally involves a momentary loss of power, almost resembling a backfire without the noise. I can only assume that this is related to brief disengagement of the clutches. I sought assistance by taking my vehicle to a local dealership who kept it for a little over a week. Unfortunately, they were unable to reproduce these issues, and no actions were taken to address my concerns. This unpredictable behavior from the vehicle often catches me and my passengers off guard and really makes it hard to trust the vehicle.

Filed Mar 19, 2023 · Driver assistance · TX

There have been multiple occasions, both on highway and urban roads, when the Lane Keeping Assist system has forced me out of my lane, both taking control of my car's steering wheel to move me out of the lane while also failing to trigger my Lane Departure Warning. One time, LKA jerked over into a lane of oncoming traffic, another time it jerked me out of my lane into a near collision with a concrete lane barrier, and another time the LKA jerked out of the lane almost into a curb.