2015 Cadillac XTS Problems: 21 Known Issues
2015 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Cadillac XTS has 21 documented known issues, with 6 rated critical. The most serious are High-Pressure Direct-Injection Fuel Pump Failure ($450-$950 repair), Passenger Presence System Fault / Passenger Airbag Light On ($300-$1,500 repair), Rear Air Suspension Sudden Collapse (F38 Air Ride) ($700-$2,500 repair), Water Pump Weep-Hole Coolant Leak (3.6L V6) ($350-$700 repair), Recall 14V541: Electronic Parking-Brake Software May Allow Brake Drag and 2015 XTS Airbag Inflator Rupture Recalls: Side Airbags (15V666) and Driver Frontal Airbag (26V329) ($0-$0 repair). Across all issues with published estimates, repair costs range from $100 to $4,000. DIY maintenance guides at au7o.io.