Automatic transmission vehicle’s uphill driving mode can provide good acceleration performance but can result in new performance problems in noise and driving convenience perspective such as wide engine speed range, shift busyness and engine speed hanging if not calibrated in proper way. DFSS used to optimize above driveability performances by calibrating control factors and found out that using uphill driving mode longer and more torque converter clutch release are effective. Results showed 2.5 S/N gain, 27% improvement in engine speed standard deviation and 7.0 S/N gain, 67% improvement in shift counts.