2020 Hyundai Palisade: hesitation when accelerating

Filed May 12, 2026 · Engine · MS

2020 Hyundai Palisade, VIN: [XXX] . Excessive engine oil consumption beginning at ~95,418 miles. Oil drops to critical levels between oil changes, causing engine hesitation, rough running, and Check Engine Light activation — CEL clears only after oil is manually added, confirming oil starvation as the cause. SAFETY RISKS: Engine seizure or stall at highway speed; engine fire from oil burning on hot components; sudden loss of vehicle control; CEL only illuminates after oil is already critical, leaving no safe warning window. DEALER: Vehicle brought to dealership in [XXX] on 8/25/25 (95,451 mi) and Barnes Crossing Hyundai, [XXX] on 4/22/26 (99,969 mi). RO# XXX/1. HMA Case# XXX. Both dealers confirmed abnormal oil consumption. MANUFACTURER RESPONSE: Hyundai Motor America denied all repair or engine replacement solely because the title was transferred from a family member. Hyundai's own XXX (Dec. 2023) acknowledges systemic oil consumption across all Hyundai gasoline engines and mandates a repair protocol including engine replacement. A title transfer does not cause a mechanical defect and Hyundai failed to apply its own TSB procedures before denial. REQUESTED ACTION: Investigate HMA's pattern of denying TXXX remedies after title transfers; compel engine repair/replacement at no cost; evaluate safety recall eligibility. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 3, 2026 · Electrical, Engine · AZ

I recently purchased this vehicle, and shortly after, it began having serious powertrain issues. When I accelerate, the vehicle intermittently loses power and starts shaking violently. It feels like the engine or transmission is slipping or failing. The RPMs surge and drop rapidly, and the vehicle hesitates, jerks, and sometimes briefly slows down before suddenly accelerating again. This creates an unsafe and unpredictable driving condition, especially when merging or driving in traffic. I’m concerned about a loss of propulsion while the vehicle is in motion. My mechanic indicated the issue may involve the torque converter clutch not engaging properly (possible “stuck off” or circuit performance issue), which would explain the shuddering and inconsistent power transfer. Despite how severe this is, there are no warning lights or check engine light, and no diagnostic codes, which raises concern that the failure is not being detected by the vehicle’s onboard systems. I am also experiencing low and fluctuating engine oil levels even after topping it off and a recent oil change, which may indicate an additional engine-related defect. The vehicle has a clean title and no accident history. - Failed system: Powertrain (engine/transmission), suspected torque converter clutch malfunction. Vehicle is available for inspection. - Safety risk: Intermittent loss of power, hesitation, and surging creates a high risk of collision, especially in traffic or at highway speeds. - Confirmation: My independent mechanic has identified as likely a torque converter related issue. - Inspection status: Not yet inspected by manufacturer or insurance. - Warnings/symptoms: No warning lights or codes. Symptoms began shortly after I purchased and have worsened over time.

Filed Feb 27, 2026 · Transmission · OH

I own a 2020 Hyundai Palisade. The vehicle began jerking while driving, particularly during acceleration and shifting, prior to reaching 100,000 miles. Over time the issue worsened, and the vehicle started failing to accelerate properly when pressing the gas pedal. There have been significant hesitations before the vehicle would move forward. This creates a serious safety concern, especially when merging into traffic or turning at intersections. The condition appears to be related to the transmission. The symptoms began while the vehicle was still under the powertrain warranty period. I am concerned this may represent a broader transmission defect affecting other vehicles of the same model.

Filed Mar 22, 2025 · Engine, Suspension · TX

Oil consumption causing hesitation and near-stalling. Hard shifting as well. These issues led to dangerous situations where I was afraid to drive the vehicle and feared for my family's safety. Also had a failed A/C compressor which i had to replace out of pocket. These things shouldn't be happening on a 4 year old vehicle.

Filed Jul 16, 2024 · Engine · 8,500 miles · FL

The contact owns a 2020 Hyundai Palisade. The contact stated while driving at various speeds, the vehicle hesitated while attempting to accelerate. The contact stated that on another occasion while driving 60 MPH, the vehicle lost motive power and stalled. There was no warning light illuminated. The contact was able to restart the vehicle. The vehicle was taken to the dealer to be diagnosed and the contact was informed that there was no oil in the engine. The contact stated that the vehicle received an oil change however, the failure recurred. The vehicle was returned to the dealer twice and was diagnosed with a failure of cylinder #4. The contact stated that cylinder #4 was replaced; however, the failure recurred. Due to the failure persistent failure, the dealer was diagnosed, and it was determined that cylinder #2 had failed, and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and opened a case. The failure mileage was 8,500.

Filed Oct 18, 2023 · Engine, Fuel system · PA

My wife and I Were driving then all of sudden the engine light would come on and the car would hesitate and go then at anoqtpher time it stopped on my wife we travel often back and forth to the veterans hospital for treatment and we don’t feel safe any longer. We had it at the dealership about three times. Faulkner Hyundia. We thank you for your help

Filed Jun 20, 2023 · Engine, Transmission · TN

Car began giving us an issue while driving several months ago : driving up hills at a speed of 20 mph or less, the vehicle begins to jerk and pulse. There is also a knocking sound coming from the rear of the vehicle. Much of this also happens in parking lots at speeds of less than 10 mph. Driving at a speeds of greater than 60 mph / highway the car will pulse as well. This does not change with driving modes: ECO, Comfort, Sport or SMART mode. The engine is the same throughout modes- jerking and hesitating. When driving from highway to get gas or stop the car will have trouble when pressing on the gas pedal after being stopped then trying to enter the highway. The car is slow to respond to the gas pedal and will not accelerate matching your foot on the pedal. After some time the car will jerk forward and will not slow down when you take your foot off the gas. One incident in the past week I was pulling out into a 3 lane road, the car just stopped for no reason. Gas pedal down.. NOT moving. I was sitting in 3 lanes of oncoming traffic. I have reported this to my Hyundai Dealership. They are unable to locate the problem because NO codes pop up. They are unable to duplicate my problem when test driving. My concern is safety with having 3 children in the car and it just STOPS / lurches forward at a fast rate of speed. This happens on a daily basis. Unknown as to component or system failed or malfunctioned.. Yes available for inspection upon request.