Exhaust System Emission Control Urea Injection System (def) problems of the 2024 GMC Sierra 1500

The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the fuel level indicator on the instrument panel became inoperable and provided incorrect information. The contact stated that due to the inaccurate fuel level, the vehicle almost went into limp mode with the message “refuel - empty now” displayed. The vehicle was taken to the dealer, where it was diagnosed, and determined that the def tank had failed and needed to be replaced. The vehicle was not repaired. The contact was informed by the dealer that parts to repair the vehicle were on backorder. The manufacturer was made aware of the failure. The failure mileage was approximately 34,895.