How do I access the computer via the dash. I know how to do it on my 1995 SLS and my 2000 STS, but can't figure it out on my 2002 Escalade. I just bought the Escalade and both the Security and Airbag lights are lit. Carfax had no record of accidents or damage--which is why I bought it but it is starting to look like it may be a theft recovery. I can't figure out how to reset the codes. In the meantime, my key fob remotes don't work. I assume that is because they are disabled.