NHTSA Complaint #11682770 — 2025 JEEP WAGONEER S

While traveling on the interstate at approximately 70 mph, I pressed the accelerator pedal to increase speed. Instead of accelerating, the vehicle suddenly jerked, and the wheels locked up as though the brakes engaged on their own. I continued pressing the accelerator, but the vehicle rapidly decelerated without responding to throttle input. The most concerning part was that the brake lights did not illuminate while the vehicle slowed down, which created an extreme safety hazard because drivers behind me had no warning that I was slowing. A large truck traveling directly behind me nearly collided with my vehicle because the sudden deceleration was not signaled by the brake lights. This incident placed both myself and surrounding drivers in immediate danger. The vehicle is currently at the dealership service department for inspection, and I have reported this issue. At this time, the problem has not yet been confirmed or reproduced by the dealer, but the failure was unexpected, severe, and occurred without warning. Prior to the failure, the only indication was that a red wrench symbol with a lightning bolt illuminated on the dashboard. The failure itself happened suddenly with no audible or mechanical warning. The malfunction appears related to the braking system, power train, and/or speed control systems. I am requesting that this incident be fully documented and investigated as a potential safety defect, as an uncommanded deceleration at highway speeds without brake light illumination presents a serious risk of high-speed rear-end collisions.