You will need to look at your manual on steps required to reset your car alarm security system or either contact your car dealer or your auto club technical advice center if you have such membership. As a general rule, since this is an anti-theft protection device, unless you are know to the car dealership or mechanic, they will not give you the information until they can positively identified you! It is a real necessary 'pain', but persevere as you will not be able to start your car again until the alarm is reset. Hope it helps!