There are 1 owner-reported driver assist & adas complaints for the 2003 Cadillac CTSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE LICENSE PLATE BACK UP LIGHT ASSEMBLY TO MY CADILLAC CTS 2003 MYSTERIOUSLY CAME UP MISSING. THIS IS A COSTLY PIECE TO REPLACE. I HAVE CALLED MULTIPLE SALVAGE YARDS TO FIND OUT THAT A LOT OF THEM RECEIVES 2-3 CALLS PER WEEK FOR THIS PART. I TALKED TO A CLAIM REPRESENTATIVE AT STATE FARM AND HE SO HAPPENED TO HAVE HAD 3 OPEN CLAIMS WITHIN ONE MONTH. ALL CONVERSATIONS LEAD THIS TO BEING A DEFECT IN THE MAKING OF THE VEHICLE. NOT HAVING THIS PART, LEAVES MY BRAKE LIGHTS EXPOSED. *TR
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