When I go to remote start my vehicle the lights flash but no start? I called burnettes automotive and gave them my vin and in their system they said it looked like it had the correct code for remote start. When I took it to the GMC dealer to get more fobs programmed he said he thinks someone had it deactivated. I talked to another GMC dealer and he said there's is no such thing as deactivation. My glove box still says AP8 though and not AP3. So what does the lights flashing mean?