Hyundai Palisade loss of power problems

Filed Nov 8, 2026 · Engine · FL

I am filing an immediate safety complaint regarding a severe engine defect on my vehicle and the manufacturer's dangerous diagnostic protocol. The vehicle is experiencing active engine failure symptoms, including [insert symptoms here, e.g., severe knocking, sudden hesitation, intermittent stalling, or a flashing check engine light]. I have clear video evidence of the failure, and the dealership's Shop Foreman inspected the vehicle and diagnosed it with an internal engine problem. Despite a formal diagnosis from their own Shop Foreman and video proof of the failure, Hyundai Techline is attempting to deflect liability by blaming a previously installed aftermarket oil filter. The dealership has since replaced the aftermarket filter with an OEM filter. However, instead of repairing the diagnosed internal engine defect, they are forcing me to drive this malfunctioning vehicle for an additional 1,000 miles to "duplicate" the issue. Operating a vehicle with a known, documented internal engine failure on public roads poses an immediate and severe safety hazard to myself, my kids, and other drivers. The vehicle is at imminent risk of sudden engine stalling, complete power loss, or catastrophic mechanical seizure at highway speeds, which could cause a serious collision. The manufacturer is actively demanding that I operate a dangerous vehicle as a condition of their warranty process, shifting extreme physical liability onto the consumer.

Filed Oct 29, 2026 · Engine · NE

Vehicle Information: 2021 Hyundai Palisade Limited (3.8L V6 Engine) Complaint Description: While driving at highway speeds, the vehicle suddenly began making a loud engine knocking noise, followed immediately by a total and catastrophic structural failure of the engine. A connecting rod bearing seized and the rod broke, punching a hole directly through the metal engine block. This mechanical failure caused an immediate, complete loss of motive power and propulsion while traveling in high-speed highway traffic. The sudden loss of engine power simultaneously disabled the power steering and power braking assistance, creating an extreme and immediate safety hazard as I was forced to navigate a completely dead, non-responsive vehicle across multiple active lanes of traffic to reach the shoulder. The vehicle was manually pushed directly to a licensed Hyundai dealership 1/2 a mile, where technicians confirmed a catastrophic internal engine failure with a thrown rod through the engine block. The vehicle had a consistent and documented maintenance history prior to the incident. No warning lights or oil pressure indicators illuminated on the dashboard prior to the sudden knocking and immediate engine destruction. This defect poses a severe, life-threatening safety risk due to the sudden loss of vehicle control on public highways.

Filed Oct 27, 2026 · Acceleration, Transmission · VA

My vehicle suffered a complete loss of power when trying to accelerate from a low rate of speed. This has now happened twice while driving and poses a safety risk to me and my family. The problem has not been reproduced by the dealer. The vehicle has been inspected by the manufacturer. There was no warning or symptoms before the problem occured. Warning lamps appeared after the problem.

Filed Oct 24, 2026 · Electrical, Engine · ND

Our 2026 Hyundai Palisade has experienced repeated dangerous electrical failures while driving. XXX All instrument displays went completely black while driving. The engine continued running. Gateway Hyundai in Fargo, ND, checked the vehicle but verbally reported finding no diagnostic codes. XXX While driving on the highway at night, the interior displays and exterior lights repeatedly flickered off and on. XXX The vehicle unexpectedly lost power and shut down at highway speed, requiring a tow to Don Bessette Hyundai in [XXX]. The dealership documented 36 stored diagnostic trouble codes, primarily communication faults. The codes were cleared, and an ECM software update was performed. No confirmed cause was identified. XXX The instrument panel went completely black twice while driving, lasting approximately 10 minutes and 14 minutes. XXX While driving at night, the interior and exterior lights again flickered off and on. Approximately 30 minutes later, the instrument panel went black and the exterior lights dimmed. We pulled over, activated the hazard lights, and restarted the vehicle, but normal lighting did not return. We drove approximately 14 miles with hazard lights on to reach the nearest town. The lights eventually returned, but the instrument panel continued flickering, the front camera repeatedly reported being disabled, and driver-attention warnings appeared during the drive home. These failures continued after dealership service and a software update. We are concerned about another sudden loss of engine power, headlights, or critical driver information at highway speeds. These failures pose a serious safety risk to occupants and other motorists. We request that the federal safety agency investigate these electrical failures. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 17, 2026 · Electrical, Suspension · SC

I came to a complete stop at the stop sign and waited for several vehicles to pass on the street I needed to turn onto. I proceed to turn right but the vehicle stalled mid turn. The motor rev'd as I pressed the gas and made weird noises like the truck was stuck in neutral although it was in drive. The tires would not spin to propel me forward. I was stuck in the middle of the street. I shut the truck down for about a minute while flagging others to go around me then started the truck up again. The issue cleared. This has happened several times. Other times, the dashboard display completely blacked out and the drivemode button (eco vs sport vs comfort) changed on it's own and I was not able to manually change settings or get the dashboard to reappear or get the truck to move forward when placed in drive gear. I had to power cycle the truck to get it to work. Very unsafe to be stranded in the road. Dealership reported no trouble found, issue cannot be replicated. I also have suspension issues and reported power loss while driving. Please investigate.

Filed Oct 8, 2026 · Seat belts, Seats · CA

1. Component or System Failed Seat Anchor/Restraint System: Driver's seat mount bolts left hand-threaded following Campaign 283 recall service. (RO available for inspection) Suspension & Steering Geometry: Alignment/subframe failure causing severe tire wear under 6k miles across 2024, 2025, and 2026. (RO's available for inspection) Dealer Documentation System: Falsified "Recall Declined" entry in WebDCS and on RO, omitted and undocumented flagged safety recall on RO (Oct 28, 2025), unrecorded oil leak inspection findings, withheld technician notes and VIN and repair records. (RO's and Webdcs,- Warranty History available, technicians notes possibly available). 2. Safety (Me, Husband, and 2 Children) Put at risk Seat Anchor / Restraint System -Loss of Control: Loose seat bolts allow the driver's seat to shift unexpectedly, impairing pedal and steering control while driving. -Restraint Failure: Unsecured bolts risk complete seat detachment during a crash, rendering seatbelts and airbags ineffective. Suspension & Steering Geometry -Tire Blowout Hazard: Severe tire wear under 6k miles drastically increases the risk of a high-speed blowout. -Unstable Handling: Continuous misalignment causes vehicle pulling, reduced braking efficiency, and compromised control during emergency maneuvers. Dealer Documentation System -Forced Operation of Unsafe Vehicle: Logging safety recalls as "Declined" and omitting flagged recall alerts in WebDCS and on Repair Orders hides known safety hazards from official records, leaving uncorrected recall risks active while driving. -Concealment of Mechanical Hazards: Suppressing oil leak inspection results and withholding technical VIN notes hides active fluid or mechanical defects, creating sudden engine failure, loss of power in traffic, or fire hazards without the driver's awareness. 3. Problem reproduced confirmed most(yes), some(no) 4. Manufacturer inspected = yes to most UNKNOWN to some 5. No, seat moving, big+uneven tire wear under 6k

Filed Oct 2, 2026 · Electrical · 300 miles · PA

The contact owns a 2026 Hyundai Palisade. The contact stated that while at a stoplight and attempting to depress the accelerator pedal while making a left turn, the vehicle lost power. The Police showed up on the scene and were able to jumpstart the vehicle and called AAA to have the vehicle towed to the dealer. A dealer was contacted. The vehicle was towed to the dealer, where it was diagnosed and determined that the engine control module needed to be updated. The engine control module was updated; however, the failure persisted. The contact stated that the dealer test drove the vehicle and informed the contact that the vehicle was operating as intended. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline to report the failure. The approximate failure mileage was 300.

Filed Sep 28, 2026 · Driver assistance · OH

On August 10, 2026, at approximately 12,302 miles, I took the vehicle to an authorized Hyundai dealer after it stalled multiple times, including once while accelerating. I also reported sluggishness/loss of power. The dealer was unable to duplicate the problem. The vehicle subsequently stalled two additional times. In September 2026, while driving at highway speed with cruise control engaged, the vehicle suddenly and aggressively decelerated/braked as though it detected an obstacle ahead, although no vehicle or obstacle was present. A similar event occurred the following day. Unexpected braking, loss of power, or stalling at highway speed creates a serious collision risk. I have also experienced a forward-collision warning when no vehicle was in front of me and intermittent jerking/hesitation. I returned the vehicle to the Hyundai dealer on September 22, 2026, at approximately 14,548 miles. The dealer performed diagnostic scans and approximately 42 miles of road testing. No relevant DTCs were found, the problems could not be reproduced, and no repair was performed. The dealer documented the result as No Trouble Found. There were no consistent warning lamps or messages before the stalling or unexpected deceleration. The cause remains unresolved despite multiple dealer visits.

Filed Sep 18, 2026 · Engine · FL

I am reporting severe and recurring oil consumption in my 2020 Hyundai Palisade that could cause engine damage, engine seizure, stalling, or a sudden loss of power while driving. On April 14, 2026, at approximately 89,950 miles, an authorized Hyundai dealership documented that the engine had consumed approximately 1.3 quarts of oil in only 1,275 miles, equivalent to approximately one quart every 982 miles. The vehicle failed Hyundai’s initial oil-consumption test. Hyundai then authorized a combustion-chamber cleaning. On May 12, 2026, at 91,087 miles, the dealership completed the follow-up test and stated that the vehicle passed at that time. On September 14, 2026, at 95,512 miles, I returned to the dealership because the engine again had no measurable oil remaining. Only 4,425 miles had elapsed since the May oil change. The dealership’s repair order states that the vehicle “has no oil again.” I also reported that the vehicle had begun stuttering and rattling when pressing the brake and coming to a stop, creating concern that the engine may already have sustained damage from insufficient lubrication. The dealership initiated another oil-consumption test and instructed me to return after 1,000 miles. However, the earlier combustion-chamber cleaning did not correct the underlying problem. I am concerned that the vehicle may again consume its oil without adequate warning and could stall, seize, or lose power while being driven, placing the occupants and other motorists at risk. Hyundai should investigate the cause of the recurring oil loss and determine whether 2020 Hyundai Palisade vehicles have defective piston rings, cylinders, valve components, PCV systems, or other engine components causing excessive oil consumption. I am requesting that the federal safety agency document and investigate this potentially dangerous engine defect.

Filed Sep 1, 2026 · Electrical, Engine · IL

I am reporting a potential safety defect involving my 2021 Hyundai Palisade Calligraphy AWD. The vehicle has experienced repeated engine and drivability problems and multiple breakdowns following replacement of the engine by Hyundai. The original engine developed excessive oil consumption and was ultimately replaced by Hyundai with a new engine. Following the engine replacement, the vehicle experienced numerous additional mechanical problems and repair attempts, including engine rattling/pinging, intake-manifold replacement, oil valve-seal replacement, multiple cylinder misfires, ignition-system problems and an ignition-coil failure. Most concerning are repeated incidents involving severe shaking/lurching, loss of engine power, stalling and failure to restart. During one incident following repairs, the vehicle ran extremely rough, stalled and would not restart after approximately 20 miles of driving and had to be towed back to the dealership. During another incident, the vehicle experienced heavy shaking on startup, stalled and had severely limited power. Diagnostic history showed misfires involving multiple cylinders. On June 29, 2026, at approximately 103,671 miles, I was driving at approximately 50 mph when the vehicle began to lurch and shake, lost power, stalled and would not restart. The vehicle had to be towed back to the Hyundai dealership. The unexpected loss of propulsion and stalling while traveling at approximately 50 mph created a serious safety concern because I could no longer rely upon the vehicle to maintain power in traffic. The dealership subsequently identified an ignition-coil short/failure and replaced an ignition coil. The vehicle has nevertheless continued to experience additional mechanical problems. The vehicle is currently again at the Hyundai dealership. It has generated diagnostic code P0430 for Bank 2 catalyst efficiency below threshold, and Hyundai has recommended replacement of both catalytic converter/manifold assemblies. Th