Our 2025 Ram 2500 was purchased new in March 2026 with 41 miles. It had 17,254 miles on October 19. We completed a six week cross country trip towing a trailer without problems until September 25, 2026. September 25: The doors failed to lock automatically while driving above 35 mph. Neither key fob nor the interior electric lock switches worked, and the power windows failed. The engine and 12 inch screen remained on. Turning the truck off and restarting it did not restore these functions. As soon as we got home,...
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we called our regular servicing dealership. They said the key fob batteries were dead. We disagreed because the interior controls and windows also failed. I independently tried the manufacturer's mobile app. Its first lock command failed; after restarting the app and retrying, the doors locked and the other functions resumed. No cause was confirmed. October 17: While slowing for a stop sign, the engine suddenly shut off. The display instructed the driver to shift into Park to restart. A vehicle was behind us, but the hazard warning lights and power windows would not work, so we could not warn its driver. The truck restarted after shifting into Park, pressing the brake and pushing Start. October 19, about 6:40 AM: A different driver was coasting toward a traffic light at approximately 5 mph or less, without hard braking, when the engine shut off again. The display said "Shift to Park to Start." The driver shifted into Park and pressed Start to restart. Both shutdowns happened during deceleration without advance warning. The Ram app recorded the trips but showed no active driving alerts. Unexpected stalling in traffic, especially with failed hazard lights, poses a collision risk. I called Ram Customer Care as soon as they opened on October 19. A dealership inspection is scheduled for October 21. The cause remains unknown, no repair has been completed, and the truck is available for inspection.