Need help starting my trailblazer

[Cbmorris39]

I have a 2003 trailblazer my driver door doesn’t lock but I locked my doors and my cousin opened my door and the alarm went off I wasn’t around with the keys to stop the alarm so he unhooked the battery I hooked the battery up now it says unknown driver and want start how can I get it to start

 

[TJBaker57]

There is very likely a time period that has to run out before you will be able to start it. It will remember this after the alarm goes off even if the battery is disconnected. By the time you read this it might start.

 

[Cbmorris39]

It was unhooked around 4pm I still can’t get it to start keep say driver unknown

 

[Mooseman]

Unknown driver just means that the door wasn't opened using a key fob (#1 or #2), or a module is misbehaving and throwing gibberish into the communications bus.

Unknown Driver

This will be long, so please bear with me. I was doing some grocery shopping earlier tonight and decided to make one last stop. I jumped back in my car, started it up, and left the parking lot. I was cruising about 30 when first my ABS and Brake lights lit up. About a second later my DIC...

gmtnation.com

The identification of driver 1 or driver 2 is mostly for radio presets.