2020 Hyundai Palisade driver assistance problems

Filed Jun 16, 2026 · Driver assistance, Engine · MD

On XXX I took my vehicle to Ourisman Hyundai of Bowie because my engine light was on. That same day the Service Adviser (Edson XXX) informed me that the engine was burning oil excessively. They performed an oil change and replaced engine oil gasket and asked me to return after driving 1000 miles. Mileage at the time was 103,380. I return on XXX, mileage was 104,580. [XXX] informed me that vehicle failed oil consumption test. He submitted request for engine replacement. On 11/25/2025 I returned to dealer because engine light came on again, and still no approval for engine replacement. I was informed that Hyundai approved combustion chamber cleaning. The service was complete four days later. However, it did not fix the problem. The engine excessive oil burn still happens as of this report. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 1, 2026 · Driver assistance · FL

"The front view camera (FR_CMR) failed due to an internal control chip defect. The component is available for inspection — it is currently at the dealership. Multiple ADAS safety systems were simultaneously disabled, including Forward Collision-Avoidance Assist, Lane Departure Warning, Lane Keep Assist, Driver Attention Warning, and High Beam Assist. This puts both the driver and other road users at risk by removing all active collision prevention and lane keeping systems while driving at highway speeds with no backup warning. The problem has been confirmed by the Hyundai dealership via GDS diagnostic scan showing two DTCs: C160649 (ECU Software Error – Front View Camera) and C180581 (LKAS CAN Signal Error). The vehicle has been inspected by the dealer. Dealer repair order quotes $1,511.87 for camera replacement and calibration. Warning lights for Forward Collision, Driver Attention Warning, and High Beam Assist appeared on the instrument cluster and have remained on continuously. Systems have been disabled since the warning lights first appeared. This is a known internal control chip defect documented in Kia TSB ELE231 (Rev 2, August 2021), covering the identical camera assembly shared across the Hyundai/Kia platform. The same DTCs and same fix — front camera replacement, variant coding, and calibration — are confirmed repaired on other 2020 Palisade Limited vehicles under warranty. Hyundai has not issued a corresponding TSB for the Palisade despite the identical failure mode and shared part. VIN: [XXX] ." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 11, 2026 · Driver assistance, Electrical · NJ

While idling at a traffic light on a busy city street all of the warning lights on the car went off and the car shut off on its own.

Filed Jan 4, 2026 · Body, Driver assistance · TX

Rear sunroof exploded randomly.

Filed Nov 5, 2025 · Driver assistance, Engine · KY

I am the 3rd time owner of this palisade. Car was bought after a transmission replacement at 27,000 miles. (Second transmission). At around 70,000 miles, we started to have oil consumption problems/ignition coil problems. After a slew of tests and other recommend procedures that cost us money out of pocket, hyundai recommended to get a new engine. We get the new engine. They call to tell us the new engine is done, and proceed to share the transmission is bad and it needs a new one (3rd transmission). They are asking us to pay for the transmission as well. We want a buy back as we think this is a lemon car. 3 transmissions and a new engine under 85000 miles is not good and definitely grounds for investigation. These repeated failures make it unsafe/unreliable for us to drive our 6 month old baby in, let alone my wife and my myself. . We request and investigation/buyback.

Filed Oct 26, 2025 · Driver assistance, Electrical · OH · crash · 3 injuries

I was driving through town at a low rate of speed (20-30 mph) with 2-3 car lengths between me and the next vehicle. I continued through light to next light. This distance was on an upward incline. After traveling approximately 500 ft, I noticed the traffic slowing in front of me and took my foot off the accelerator to start to slow down. This is when the car suddenly accelerated (instead of slowing down as would be expected when traveling up an incline), picking up speed quickly. The car's response happened so quickly that I was unable to swerve to avoid hitting the car in front of me. I hit the car in front of me that was slowing down at the light which then subsequently hit several other vehicles that were in front of it that were also slowing/stopped for the light. The front airbag deployed as a result of the collision, knocking my glasses off. The vehicle was still continuing in forward motion after the collision….Traffic Crash Report states, “... [witness] went up to Unit 1 [Palisade], and the tires were still spinning…” As I was in shock after the collision, a bystander came up to the vehicle to turn it off and this is when the wheels/forward motion was completely stopped. This Palisade is equipped with Forward Collision Avoidance Assist (FCA) system. There was no warning given nor did the vehicle attempt to slow down during the event so I believe that this system failed to operate which contributed to the collision. I also believe that there was a failure with the engine/electrical system, ETC, and/or transmission that caused the system to suddenly accelerate while traveling uphill AFTER I removed my foot from the gas pedal. The vehicle was totaled by my insurance company. They did say that they were sending an engineer to review the Event Data Recorder. I have not seen any results from that nor do I have the vehicle in my possession as it was totaled.

Filed Sep 16, 2025 · Brakes, Driver assistance · MD · crash · 1 injury

I was recently involved in an accident with my 2020 Palisade that I believe may have been caused by a brake failure. I was simply moving the vehicle from one part of a driveway to another when, as I drove over a drainage ditch, the brakes did not respond and the car suddenly accelerated into a tree. I sustained facial injuries and was transported by ambulance to a nearby hospital. The vehicle is currently at Canby Motors in Bel Air and is available for inspection. The vehicle has only been inspected by Canby Motors to my knowledge at this time. There were no warning lamps, messages or other symptoms of the problem prior to the failure.

Filed Sep 8, 2025 · Brakes, Driver assistance · VA

Passenger side rear brake caliper failed causing the brake to scrape into the rotor. The emergancy brake remained in the lock postion when the caliper failed. Locking the caliper in the up position and releasing brake fluid. Driver side brakes, caliper, and rotor completly intact and does not need replacing.

Filed Feb 18, 2025 · Driver assistance, Suspension · AK

The rear self leveling shocks continually break. They do not last, no recall given even though multiple people say they have same problem.

Filed Sep 20, 2024 · Driver assistance, Electrical · PR

On rainy days, the vehicle will start malfunctioning putting at risk my family's life and others. It appears to be an electrical problem according to dealer. It had 15 codes activated, all dashboard lights were lit and safety messages showed up, while driving. No power steering, emergency brakes were activated, transmission wouldn't change, a/c stopped working, temperature and tachometer were erratic. It is very scary because it happens while driving and an accident is imminent.