2016 Chevrolet Silverado 2500 FUEL SYSTEM, DIESEL

The contact owns a 2016 Chevrolet Silverado 2500. The contact stated that upon starting the vehicle, the check engine warning light illuminated. The contact used a diagnostic scanner and retrieved DTC: P21DD. The vehicle was taken to the dealer, where the redundant tank reservoir and module kits were replaced; however, the failure persisted. The contact used a diagnostic scanner and retrieved DTC: P205B. The vehicle was taken to Abel Chevrolet (280 N Front St, Rio Vista, CA 94571), where the redundant tank assembly was replaced under GM Campaign Number: N192210260. The vehicle was repaired. The contact stated that he was concerned that the repair was a temporary fix. The manufacturer was notified of the failure, and a case was filed. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 32,000.

The contact owns a 2016 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The driver was able to coast to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed failures with the fuel injection pump and diesel particulate filter. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who diagnosed failures with the catalytic converter and fuel injector sensor. The vehicle was repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 174,000.

The contact owns a 2016 Chevrolet Silverado 2500. The contact stated while driving approximately 65 MPH, the vehicle lost motive power, stalled, and stopped in the middle of the roadway. The contact stated that there were unknown warning lights illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the high-pressure fuel pump needed to be replaced. The vehicle had not been repaired due to a national backorder on the part. The manufacturer had been informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 21E101000 (Fuel System, Diesel). The failure mileage was approximately 70,000.

The contact's husband owns a 2016 Chevrolet Silverado 2500. The contact stated while her husband was driving 20 MPH and approaching a traffic light, the engine started to misfire. The contact's husband was unable to restart the vehicle after several attempts. The vehicle was towed to the hotel where he was staying. The vehicle was then towed to a local dealer where it was diagnosed that the CP4 high-pressure fuel pump had failed. The dealer also informed the contact that there were metal fragments inside the fuel lines and the fuel injectors. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 115,000.