[header] How to reset aftermarket (checkmate) car alarm [title] Identify your valet switch. [step] The valet switch is either a toggle switch or a push button that disarms all alarm functions except the remote panic and remote door lock functions. This eliminates the need to hand your remote to garage mechanics and valets, giving the switch its name. 
Usually this switch is located somewhere under the dash, perhaps on the left kick panel. [substeps] A valet switch is a standard piece of equipment with most factory and aftermarket alarm systems.