There are 1 owner-reported fuel system complaints for the 2019 Cadillac XT4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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.
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