There are 1 owner-reported powertrain & transmission complaints for the 2016 Cadillac XTSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Catalytic converter cracked creating exhaust leak into engine compartment. The converter has been replaced 3 times in 75,000 miles for this defect. The latest replacement has now failed and is leaking exhaust necessitating a fourth replacement. Replacements to date: 1) March 12, 2016 2) March 8, 2019 3) March 21, 2021 4) July 25, 2022, not yet replaced
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