Table 1 shows one common exterior lighting related problems of the 2026 Hyundai Palisade.
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting problems |
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 NHTSA investigate these electrical failures. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
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).