cadydeville

Hi, i have a 97 deville and my ABS & TC lights are both on . My car now starts in 2nd & shifts up but will not start in first . I took it to chevy dealer to have it looked at & 4 days later i had a mechanic tell me he took it on a test drive with a transmission tech that had a computer hooked up to it . He said he dont think anything is wrong with the tranny he commanded it to shif...