[Ironhorse]

An up-date on the dash "security" light and no start condition. Took the Tahoe to a mech. I've used for several years. Scanner showed an in-correct password to the "theft deterrant". Changed the theft deterrant module, re-programmed and also removed an after market alarm system with remote door locks. So far the security light situation and the no-start condition have not re-turned. Keeping my fingers crossed on this.