did you do the security learn 3 times? or just once? how is the battery? sounds like its on the weak side.

security learn is key to run for 10 minutes off for less then 5 seconds and back to run for 10 minutes tree times. you cant open the doors or mess with the radio or anything, if the battery cant stay alive for 30 minutes key to run, have a charger on it, or jumper cables off a running car to keep your battery up to 12 volts during this.

i like to open the window and work the key from outside, cause who wants to be stuck inside the car for that long, use a timer on your phone. the off then back on, i turn it off for like 2 seconds and back to run.