There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2015 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)Please note GM PIP5146A...Chatter or Bind Feel on turns... AKA transmission shudder. According to Cadillac dealer in Durham, NC. The car needs it's rear differential replaced; 90,000 miles.. That is happening now. Ally, the extended warranty company, sent a technician to inspect the part. I don't know if the original part is still available. I 1st noticed the problem in Fall 2019. Shop invoice, 62,187miles, reflects differential fluid & filter change which temporarily, partially mitigated the problem for a few years. It never disappeared. I am not sure what the worse case safety scenario is. I never let it get that far.
TRANSMISSION WON'T SHIFT INTO GEAR AFTER SHIFTER IS MOVED WITH ENGINE RUNNING. DASHBOARD INDICATOR SHOWS SELECTED GEARS, BUT TRANSMISSION DOESN'T ENGAGE.
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.