How to put horn sound when locking a Scion tC???

Question

tC owners: how to put on the horn sound when u lock ur car, like every other car (when u press lock their's a horn beep) but how to activate that horn when locking the tC.

Answer 1

Only the 2007+ Scion tC's do this.

It beeps twice to unlock, and once to lock. The 2005-2006 Scion tCs don't make a beeping noise.

Answer 2

Try pressing the lock button twice.