/en/qa/tag/gmt5 Powered by Question2Answer /en/qa/94709/truck-wont-start-by-ignition 2016 GMC 3500 standard key  I installed EVO-ALL RS w/GMT5 stand alone.  It will start with the factory key fobs (lock, lock, lock) but will not start via the key in the ignition.  Once the ignition is turned to start, display advises "SERVICE THEFT DETERRENT SYSTEM".  EVO module is dark, when ignition is turned to ON yellow light activates.  When using key fob blue light flashes with each lock, then red light turns on, truck starts.  Once started red and yellow lights activate.  Any thoughts....? GMC /en/qa/94709/truck-wont-start-by-ignition Tue, 07 Jan 2020 20:18:49 +0000 /en/qa/89289/2016-sierra-1500-truck-wont-3x-start 2016 sierra 1500 truck wont 3x start fortin unit is flashed and encrypted i did not wire the on star side of the unit but i do have on star however i dont pay for it . went through the system options and turned on the standalone function still no start . GMC /en/qa/89289/2016-sierra-1500-truck-wont-3x-start Fri, 30 Aug 2019 01:15:56 +0000