Torque Converter Lock-Up

The purpose of the automatic transaxle torque converter lock-up feature is to eliminate power loss of torque converter stage when vehicle is in cruise condition. Converter clutch will engage under the following conditions: vehicle is moving faster than a precalibrated speed, engine is at normal operating temperature, throttle position sensor output is not changing (indicating a steady road speed), transaxle is in high gear, and brake switch is closed.