There are 1 owner-reported fuel system complaints for the 2021 Cadillac CT5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Car interior smelled like gas when the car is started. but seemed to clear while driving. Found that the Fuel hose between the pipe and the fuel intake was leaking when the car initially started. You could smell the odor when the hood was raised. This is the Pipe and Hose that you need the Fuel clamp removal tool for that is located in the rear center of the engine just in front of the firewall. The leak was about 3 inches from then end where it connected to the engine. Currently I have a temporary repair on it (Fuel coupling) where the hole was. Note, This car is out of warranty. It has been to the dealership (Step One Cadillac in Ft. Walton Beach, FL) for other recalls, but the dealership did not mention any issues.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026