Code result
P0742
Torque Converter Clutch Circuit Stuck On
High severity
What it means
The torque converter clutch (TCC) cannot disengage. Symptom is engine stalling when coming to a stop, because the engine is mechanically locked to the transmission output.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
TCC solenoid stuck on
highOne of the most commonly reported causes for this code — check this first.
Valve body contaminated
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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