GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2009
🢒
Lucerne
🢒
Transmission
🢒
Automatic Transmission - 4T80-E
🢒 Early Torque Converter Clutch Engagement
Checks
Causes
Calibration
Incorrect platform or level
Transmission Fluid Temperature Sensor
Shorted
