There are 8 owner-reported fuel system complaints for the 2009 Cadillac CTSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Gas leaking from above gas tank took car in for service 5/6/24. they could not duplicate issue on 5/24 engine light comes on. On 5/26/24 code indicated fuel pump issue. Several months before all of this, I would notice a strong gas smell after driving
The fuel pump is leaking gas on top of the fuel tank. I just bought the car and didn’t know about the consistent problem with second generation CTS. The problem is stated to ba a plastic elbow attached to the fuel pump that ruptures.There is a fuel smell inside while I’m driving and around the car when the car is motionless. This a fire and explosion hazmats that is common to this model year. I can see some fuel on the side of the fuel tank. From reading , I can see that GM has recalled other vehicles for the same problem. I believe that the first generation CTS was recalled and the second generation was not included. Replacing the fuel pump is a very expensive a labor intensive process and I would like to have 2009 CTS included in the recall.
NOTICED GAS SMELL COMING FROM CAR. I GOT WORRIED ONCE THE GAS SMELL BECAME A EVERYDAY THING. MECHANIC STATES A GAS LEAK IS COMING FROM THE GAS TANK AREA. DID A SEARCH ONLINE AND A LOT OF PETIOLE ARE HAVING THE SAME ISSUE WITH THIS MAKE AND MODEL.
TL* THE CONTACT OWNS A 2009 CADILLAC CTS. THE CONTACT STATED THAT THE FUEL INJECTORS HAVE BEEN REPLACED SIX TIMES ON THE VEHICLE. THE MOST RECENT TIME WAS THREE WEEKS AGO. THE VEHICLE WAS TAKEN TO BE REPAIRED BUT THE FAILURE RECURS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 92,000.
STRONG SMELL OF GASOLINE WAS COMING FROM THE CAR WHILE DRIVING AND WHILE STATIONARY. TOOK CAR TO BE CHECKED OUT AND LEARNED THAT A CRACK AND LEAK WAS IN THE PLASTIC SUPPLY LINE OF THE FUEL PUMP MODULE. THIS CAUSED FUEL TO SPILL AND SETTLE ON TOP OF THE FUEL TANK WHICH CREATED A DANGEROUS CONDITION AND POSSIBLE FIRE.
TL* THE CONTACT OWNS A 2009 CADILLAC CTS. WHILE DRIVING AT ANY SPEED, AN ODOR OF FUEL EMITTED FROM THE FUEL PUMP INTO THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER THREE TIMES, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 75,000.
FUEL PUMP ASSEMBLY LEAKS FROM THE PLASTIC "PVC" 90 DEGREE ELBOW LOCATED ON THE TOP OF THE FUEL PUMP. NORMAL VEHICLE OPERATION WILL CAUSE THE PLASTIC "PVC" ELBOW TO CRACK WHICH IN TURN LEADS TO A PERVASIVE AND DANGEROUS FUEL LEAK. THE FUEL LEAK THEN BEGINS TO PUDDLE ON TOP OF THE FUEL TANK WHICH THEN FLOWS DOWN THE FUEL TANK TOWARDS EXHAUST AND EVENTUALLY THE GROUND. A STRONG SMELL OF FUEL IS PRESENT WHILE VEHICLE IS ON OR OFF. THE LEAK BECOMES GREATER AS MORE FUEL IS SENT TO THE MOTOR. THIS IS A PERVASIVE ISSUE ON MANY 2009-2015 CTS AND CTS-V VEHICLES WHICH CAN BE SEEN ON MANY MESSAGE BOARDS AND FORUMS. THIS ISSUE HAS THE HIGH POTENTIAL TO CAUSE A FIRE IN WHICH INJURY OR DEATH CAN OCCUR. IN ADDITION, THIS LEAK DOES CAUSE A FUEL SHORTAGE TO THE MOTOR AFFECTING DRIVABILITY OF THE VEHICLE. THE PIECE THAT LEAKS IS INFERIOR AND SHOULD BE REPLACED TO AVOID ISSUE. A RECALL SHOULD BE ISSUED TO RESOLVE THIS POTENTIALLY DEADLY ISSUE.
CADILLAC CTS, 2009 MODEL YEAR. PLACED THE CAR IN "PARK" AND TRIED TO TURN THE IGNITION OFF. KEY WOULD NOT TURN TO "OFF" POSITION. ENGINE KEPT RUNNING. KEY COULD NOT BE REMOVED FROM THE IGNITION. THE SERVICE TECHNICIAN SAID THAT HE HAS ENCOUNTERED SIMILAR OCCURRENCE WITH MANY 2009, 2010 CTS VEHICLES. MY FATHER DISABLED THE ENGINE BY REMOVING THE FUEL PUMP FUSE LOCATED IN THE REAR TRUNK OF THE VEHICLE. THE CAR WAS TOWED TO A CADILLAC DEALER FOR REPAIR. THIS IS A DANGEROUS CIRCUMSTANCE. IF THERE WERE AN ENGINE FIRE, ONE COULD NOT "TURN-OFF" THE MOTOR AND FUEL WOULD FEED AN ENGINE FIRE. *TR
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 25, 2026