Hyundai Palisade adaptive cruise problems

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 20, 2026 · Brakes, Driver assistance · TX · crash

I was driving to work, at a rate of 75 mph (permitted speed limit). As I approached an intersection, I tapped the brakes to turn off the cruise control. It did not turn off. I then pressed the brake pedal and it went further down than normal. The vehicle did not appear to even try and slow down or brake. I tried again, standing on the brakes with both feet. At this point, I knew I would not be stopping, as the pedal continued to feel strange, and not catching for lack of better terms. I did my best to steer around two sign poles directly in my path. Unfortunately due to not being able to control speed, I did hit one. I then continued on for approximately and 1/8 of a mile before my car finally came to a stop in the middle of a dirt field. I do not know if this was a software or mechanical issue with the brakes. I only know they did not work when needed, under normal circumstances.

Filed Sep 7, 2026 · Driver assistance · FL

Adaptive cruise control controls the speed limit based on Maps or actual signs was making an error! I was in a 60 MPH area when the system would read the route number sign and mistake it for speed limit. This happened both on state route 80, and state route 70, the car would accelerate up to that speed indicated by the route sign for a few seconds and then realize somehow it was in error and drop down to legal speed. Its a surprise for the driver.

Filed Aug 13, 2026 · Acceleration, Driver assistance · PA

This 2025 Hyundai Palisade Calligraphy is a “Top of the Line” model loaded with automatic gadgetry that is NOT ready for Prime Time or any roadway. It is unsafe for the following reasons: Problems appear to be software up-date related; the software updates way too often via overnight web connection. These updates not only change existing status of mundane systems (hatch or doors unlocking opening, etc.); these updates appear to insert bugs into the operating system which then affects the safety of automated vehicle systems which then create unsafe driving conditions on roads. The biggest safety concern is with Hyundai’s “Smart Cruise Control” system. When a driver chooses a set speed they want to follow, here is what happens often: The Hyundai Smart Cruise Control is turned on and a driver “attempts” to index to the desired speed. Once this speed is actually attained all is good. IF the posted road speed limit increases from 25 MPH to 40 MPH the driver has 2 choices, hold the speed increase button in for 3 seconds for a 5 MPH bump up OR press the button quickly for 1 MPH bump ups. Instead, here is what happens OFTEN, a 3 second hold jumps the speed to 65 MPH desired speed! Or, a quick bump jumps to 50 MPH desired speed! It is random and sporadic to what actually happens, so a driver must pay attention and cancel cruise control quickly, then get things back to normal and begin over. All this occurs while moving on a roadway at speed, hence UNSAFE biggly! Also, what happens, these vehicles front view camera read the posted speed limit (on a street-side sign) and “automatically” sets the posted speed into the Hyundai “Smart Cruise Control”. It has upped this SUV’s speed to 95 MPH and 75 MPH automatically! The driver needs to be attentive to what the automated “Smart Cruise Control” systems are actually doing; all while driving on busy roadways! This is VERY UNSAFE! I believe web software updates are creating these problems - STOP updates immediately.

Filed Jul 6, 2026 · Acceleration, Electrical · KS

Was driving 70mph on the highway, all instrument cluster speed gauges go to 0mph and I lose ability to manage speed through cruise control. Was driving blind and had no clue what speed I was going and was extremely worried for my safely. Dealership said my instrument cluster has failed, won’t cover under warranty or as a safety issue. Ridiculous a 80k 6 year old car has a main gauge part fail.

Filed Jun 19, 2026 · Driver assistance · NJ

1) Front collision sign keep coming up. 2) Cruise control does not function. Dealer claims it's wear and tear and maybe due to bumper loose. Claims maybe if someone backed up into our bumper making it loose. 3) Display on the front windshield is distorted, which is also camera related. 4) Paint on fender is peeling and they call that also wear and tear. Picture attached showing paint coming off Overall Hyundai palisade claims nothing is part of warranty. Everything they are claiming as wear and tear. It's not even 5 years since I bought this car and nothing is covered under warranty.

Filed May 12, 2026 · Driver assistance · MA

The safety sensors mounted on the front of the car seem to disable frequetnly. I belive it is the bumper sensors. I read it is a known issue that they disable when it's snowing/raining/mud. I cleaned them off and took a 3 hour drive in clear weather, dry roads. they would disable and then come back on intermittently through the drive.. drive started in day time and ended in the evening. When they are disabled the cruise control will not work and then the car just starts to slowly slow down on the the highway. On the drive back, it was daytime, roads were clear, no inclement weather and it did the same the whole way back. periodally disable and then come back on.

Filed Apr 19, 2026 · Driver assistance, Electrical · NY

While vacationing in Myrtle Beach with my family the vehicle alarmed and then progressed to critical failure of safety functions while traveling at approximately 55mph on Friday April 3, 2026. The vehicle was brought to Myrtle Beach Hyundai where it was eventually diagnosed and repaired as an Alternator issue that I have found to be common with this specific vehicle. The issues I have experienced with this vehicle go far beyond a typical mechanical concern. Over time, the vehicle has exhibited repeated electrical system malfunctions, including: - False blind spot collision warnings when no vehicles are present - Intermittent failure of the crash avoidance system - Loss of cruise control functionality tied to system faults - A broader electrical failure event that triggered multiple warning systems simultaneously Most concerning, these failures have occurred while the vehicle was in motion, creating an unpredictable and potentially hazardous driving condition. The loss and unreliability of critical driver-assist and safety systems directly impacts driver awareness and vehicle control, which raises serious safety concerns. Despite multiple attempts to have this diagnosed through the dealership network while under warranty, no definitive root cause was identified, and the issue has persisted. This suggests the possibility of a systemic electrical defect rather than an isolated component failure. Additionally, I have found that similar complaints involving electrical system irregularities and cascading warning system failures have been reported by other owners of this model, further supporting the concern that this may represent a known or emerging defect pattern. Given these factors, I do not believe this situation should be categorized as routine. Instead, it warrants review under the lens of: - Vehicle safety risk - Potential defect trend - Failure of critical driver-assistance systems during operation This vehicle has not been inspected by the manufacturer.

Filed Apr 8, 2026 · Acceleration, Electrical · MS

Instrument cluster has stopped working. Issue has been confirmed with Matt Bowers Hyundai in Gulfport, MS. Similar to the TSB 22-01-058H. Instrument cluster fails to display RPMs, Temperature, Speed, and Fuel level. Auto Bright headlights fail, seatbelt warning lights fail. Cruise control becomes inactive. Also have noticed this to cause parking sensors to become inaccurate.

Filed Apr 2, 2026 · Driver assistance, Electrical · FL

2026 Hyundai Palisade Calligraphy, VIN [XXX] , purchased March 6, 2026 with under 2,200 miles at time of incident. SAFETY INCIDENT: While operating under adaptive cruise control at highway speed, the vehicle experienced sudden unintended acceleration followed by severely delayed braking response. At least three trailing vehicles were forced into emergency evasive action to avoid a multi-vehicle collision. Family members were present. This event represents a direct and immediate threat to the safety of vehicle occupants and the public. The root cause has not been definitively identified or resolved. The authorized dealership confirmed CAN-Bus resistance irregularities — 160 ohms versus the designed 120-ohm specification — governing acceleration, braking, and all driver assist systems. Prior symptoms included flickering interior lighting. An initial module replacement failed. Repair has escalated to full wiring harness replacement with no parts availability and no confirmed timeline. The safety event remains undiagnosed and unresolved. The vehicle carries three simultaneous active safety recalls — 293, 296, and 297 — all involving electrical and wiring systems on the Calligraphy trim exclusively. None have permanent remedies. The vehicle has been in dealer custody since March 21, 2026 and is available for inspection. Hyundai Motor America active case — No. XXX. This vehicle is not safe to operate. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)