The contact owns a 2024 Chevrolet Silverado 1500. The contact stated while driving 55 MPH on a highway entrance ramp, the vehicle failed to accelerate upon depression of the accelerator pedal. The contact stated that the ‘Reduce Acceleration Drive with Care’ message was displayed on the instrument panel. The dealer was notified of the failure and the contact was instructed to take the vehicle in for a diagnostic test. Once the contact arrived at the dealer, 13 diagnostic trouble codes were retrieved; however, the dealer could not duplicate the failure. An appointment was scheduled with the same dealer, and it was discovered that the diesel particulate filter was clogged with soot, causing the vehicle to enter LIMP Mode. Despite this discovery, the dealer was unable to duplicate the failure after the filter was unclogged. The vehicle resumed normal operation. The manufacturer was notified of the failure but offered no assistance. The vehicle was not repaired. The failure mileage was 11,267.