having issues with anti theft security turning a 2003 chevy silverado from staying on

Asked by Sep 14, 2016 at 09:54 AM about the 2003 Chevrolet Silverado 1500 SS

Question type: Maintenance & Repair

my 2003 chevy silverado anti theft security lock mode . cant get my truck to
stay on, security light stays on. what is the remedy to get out of lock mode?

2 Answers


Yo may try removing positive cable from battery,with key not in truck,leave off for at least ten minutes,then place key in truck turn to the on position and replace battery cable,then turn key on and off three time,s before trying to crank,if this don,t work you may have to have key reprogrammed by dealer.

1 of 1 people found this helpful.

Put the key in the ignition, turn key to on position and leave it on until the security light goes out. Usually 15min. Once this happens crank the truck without turning the key backwards, just turn to start. This will reprogram the transponder from the ignition switch. Chevy does not have a chip in the get but the key acts as contacts between two points in the switch.

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