2019 Cadillac XT4 Fuel system Problems
- Complaints
- 3about this part
- Share
- 14%of 22 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2019 Cadillac XT4, 14% of the 22 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Rodents chewed wiring because it is soy based. I'm lucky because my car was not disabled while driving etc because the EVAP system was affected . This could have been much worse and could have caused death etc if it happened to another system of the car. ie: brakes, propulsion, headlights, air bags, etc etc etc...Cadillac dealer who fixed the issue said that it is a common problem and not warranted and my car has no warranty anyway.”
NHTSA complaint #11772069, filed 2026-10“Had a check engine light occur after a dealer warranty installed engine. The DTC code was po496 . This turned out to be a parge pump failure. Vehicle is 4 years and 9 months old, milage at 34285. Dealer saying that part is not covered any longer under warranties of any type. The repair cost me $671.89. This is an extremely early failure of an emmisions control component.”
NHTSA complaint #11628324, filed 2024-12Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10254012Apr 17, 2024This technical bulletin provides a procedure to correct the condition of Check Engine Lamp Illuminated on Driver Information Center (DIC) with DTC P0451 Set.
- 10253062Mar 5, 2024This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to…
- 10253061Mar 4, 2024This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
Fuel system: other model years
Other parts of the 2019 Cadillac XT4
12 complaintsTransmission and drivetrain
6 complaintsElectrical system
4 complaintsExterior lighting
4 complaintsOther or unknown
3 complaintsBrakes
1 complaintsSuspension
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2019 Cadillac XT4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology