2026 Hyundai Palisade: adaptive cruise control problems

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 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)

Filed Mar 24, 2026 · TX

Component that malfunctioned - "Keep you eye on the road" On a 300 mile trip the alarm went off numerous times even though my eyes were on the road and at times it would disengage the Cruise Control. At highway speed when a car is following closely the disengage of the cruise control and a rapid reduction in speed could cause an accident. The dealer indicated that this system is controlled by software and a correction would likely come from the manufacturer.

Filed Feb 4, 2026 · Acceleration, Driver assistance · WV

Constant and consistent Alerting (Attention) with the (steering and eye alert) icons present. NOTE: It would be helpful to understand and be told the exact sensor or type of alert (eye camera, steering input, forward camera) that triggered the alert! As it stands, every few seconds to minutes the alert states driver is not attentive. Eventually between 2-8 warnings is unrecoverable and the cruise control shuts itself off after a myriad set of warnings. No matter what is attempted the car ends the cruise control and the driver MUST maintain control at that point (decelerating from highway/interstate speeds dramatically). Myself and all family drivers experience this IMMEDIATELY after activation. Dealership has reported no trouble after 50 miles of driving (as stated). I have video of this issue and am adding them to youtube (2026 hyundai palisade cruise control fail) for others to see. This is UNSAFE and DISTRACTING! The alerts alone are enough to deactivate this (if available, but: it cannot be deactivated!) let alone decelerating from speed for "no good reason" outside of drivers DIRECT control. The only solution I HAVE is to not use cruise control and the safety features (as they are marketed to work) and negate the safety features I purchased the vehicle for.

Filed Oct 1, 2025 · Acceleration, Driver assistance · TN

Problem Statement: Instrument cluster has an instrumentation update lag of approximately 10 seconds. The problem may or not be present when you turn the vehicle on. Description of Problem: Turning on the vehicle. The Instrument cluster does not load properly. Different display elements appear in a different sequence than normal. The speedometer remains at zero even though the car is moving. The lag to begin changing the speed indicated is approximately 7-10 seconds. The car can be moving at 60 miles per hour, and the speedometer indicates zero. When the car is stopped the guage may read the prior steadystate speed of the vehicle. For example. Going from 65mph to a stop the speedometer will continue to read 65mph even though it has stopped. Potential Safety issues •Driver Speed Awareness: The driver may unknowingly exceed speed limits, exposing themselves to traffic citations or legal liability. •Inability to gauge speed accurately may lead to unsafe driving behaviors, such as entering curves or approaching intersections too quickly. •Braking and Stopping Distance Misjudgment: If the driver believes they are traveling more slowly than they actuallyare, they may underestimate stopping distances. This can result in rear-end collisions, failure to yield, or inability to stop in time for pedestrians or cross traffic. •Acceleration and Merging Risks: During highway merging or lane changes, the driver may not accelerate appropriately relative to surrounding traffic. A lagging or frozen speedometer can cause misjudgments of closing speeds, leading to sideswipe or merging collisions. •Entering a curve: Navigation-based Smart Cruise Control might expect you to slow down for a curve or exit. But if speed is misrepresented, it might delay braking or deceleration, causing the vehicle to approach the curve too fast, increasing risk of lane drift or rollover. Dealerhas been excellent to work with. They are aware of the issue and are recitifying the problem.