There are 1 owner-reported powertrain & transmission complaints for the 2013 Lexus CTin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE ENGINE CONSTANTLY RATTLED/SHUDDERS VIOLENTLY UPON INITIAL START FOR ABOUT 20-30 SECONDS, AND CHECK ENGINE LIGHT IS ON. DRIVING, ACCELERATION, AND FUEL ECONOMY HAS DECREASED/WORSENED. A MECHANIC IN SANTA MONICA STATED THAT THE OBD READINGS SHOW RANDOM ENGINE'S CYLINDERS MISFIRES; AND A THREE-DAY PHYSICAL OBSERVATION AFTER THE INTAKE MANIFOLD REMOVAL SHOWS: UNEXPLAINED COOLANT OIL CONTAMINATION ISSUES, OIL MIXED WITH COOLANT AT EXPANSION TANK, RAW FUEL ON CYLINDERS, FUEL BLOW BY, AND REPEATED SPARK PLUGS BURNING AFTER EACH REPLACEMENT. AND DUE TO THE HIGH COST OF FORECASTED REPAIRS AND PARTS REPLACEMENT, THE TECHNICIANS RECOMMENDED REPLACING THE WHOLE ENGINE UNIT. WE'RE EXTREMELY DISAPPOINTED, LEXUS!
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 May 4, 2026