Table 1 shows one common diesel fuel system related problems of the 2021 Chevrolet Suburban.
| Problem Category | Number of Problems |
|---|---|
| Diesel Fuel System problems |
The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving on the highway, the vehicle experienced reduced engine power and failed to exceed 30 mph. A message pertaining to the deceleration was displayed. The following Monday, the vehicle failed to exceed 35 mph, and a friend followed the contact while driving to the dealer. The dealer recommended a fuel filter replacement. The contact declined the repair because the fuel filter life was at 47%; however, the dealer proceeded with the replacement. The contact provided the diagnostic trouble code to an independent mechanic, who informed the contact that the failure was associated with TSB numbers: 20-na-197 and 18-na 361. The contact then advised the dealer of the tsbs, and the dealer determined that the fuel pump module and fuel tank module needed to be replaced. The vehicle was repaired. Additionally, the contact stated that the second-row passenger’s side seat belt buckle failed and was replaced under an extended warranty, although the part was previously replaced under a recall. The manufacturer was notified of the failures several times, but no assistance was provided. The failure mileage was approximately 92,709.