There are 1 stored owner reports matching the powertrain & transmission leading-label group for the 2019 Cadillac XTS in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)currently experiencing transmission shuddering — likely due to a torque converter issue. This was confirmed by an experienced mechanic at the dealership of Cadillac. After doing deep research I’ve learned is documented in Technical Service Bulletins such as TSB 18-NA-355 and 19-NA-121. The shuddering has caused the vehicle to slow down or speed up when at cruising speeds. There were no warning lights nor messages, but I've started to experience the issue/symptoms for about a month now. Which came out of nowhere. Recently, I replaced the transmission cooler line and performed a drain and fill, but the shudder continues.
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.