I have a 2000 chevy blazer ls 2door and the security light stays on all the time. Nnw when I get out of the truck and get back in i have to wait 10 minutes for it to start. Is there a way to disable.
Do you have an original key? If so, start the truck with the original key then shut it off. Immediately remove that key and insert the other key. Turn the ignition to the run position but do not try to start it. Watch the security light. Within a few seconds it should go out. When it does, turn the key off then start your Blazer. The second key will then be programmed into the computer. HTH. -Jim