NHTSA Complaint #11424150 — 2021 CHEVROLET SILVERADO 2500

Front Park Assist (FPA) system did not provide any level of advanced alert until after impact when all conditions were fully met as stated in the user's manual for the Park Assist system. NOTE: Text after bullets are extracts from user's manual while test in () are owner's feedback during incident when FPA failed to alert. •as the vehicle moves at speeds of less than 8 km/h (5 mph) ( the vehicle was going 1-2 MPH) •the sensors on the bumpers may detect objects up to 1.2 m (4 ft) in front (Front Park Assist (FPA) detection was not until pipe contact was made with bumper/sensor) •within a zone 25 cm (10 in) high off the ground and below bumper level. (Pipe was in full zone from 0 to >30" high) •Blocked sensors will not detect objects and can also cause false detections. Keep the sensors clean of mud, dirt, snow, ice, and slush; and clean sensors after a car wash in freezing temperatures. (The sensor was not blocked in anyway. The truck has never been in mud, dirt, snow, ice, or slush.) •When an object is first detected in the rear, one beep will be heard from the rear, or both sides of the Safety Alert Seat will pulse two times. (Initial FPA alert level was never reported) •(There was not an intermediate level description in the user's manual as implemented by GM. Intermediate FPA "yellow" alert was never reported) •or <0.3 m (1 ft) in the vehicle front — a continuous beep will sound (Continuous beep from FPA was reported only after contact was made with the pipe) •The Park Assist system does not detect children, pedestrians, bicyclists, animals, or objects located below the bumper or that are too close or too far from the vehicle. (The pipe as an object was above bumper height and passed from outside the range slowly (1-2mph) until contact was made without any alert from the FPA) This is a single occurrence issue and was reported to GM.