2006 Cadillac STS engine problems
The 2006 Cadillac STS has 28 engine complaints filed with NHTSA — 14% of the year's total, and up sharply from the prior model year.
28
Engine complaints
14%
Share of year
4
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“I WAS TRAVELING THROUGH THE COUNTRYSIDE ON MY WAY HOME FROM WORK. MY CAR SUDDENLY STALLED, I LOST CONTROL OF THE VEHICLE AND SLAMMED INTO AN ON COMING CAR IN THE OTHER LANE. THIS CAUSED PERMANENT TRAUMATIC BRAIN INJURY AS OUR AIRBAGS NEVER DEPLOYED CAUSING US TO SLAM OUR HEADS OFF WINDSHIELD AND…”
Common questions
How many engine complaints does the 2006 Cadillac STS have?
NHTSA has 28 complaints about the 2006 Cadillac STS engine — 14% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.