Can anyone assist/offer guidance on “Anti-Theft” system fuse/relay #?
Suddenly CANNOT get system to “arm”, (nor does panic button sound from remote).
CAN lock/unlock doors inc'l trunk & front hood but NO BEEP; Fobs ARE recognized (both Driver 1 & 2);
At "Unlock”, interior lights come ON; Exterior lights DO NOT (neither headlights nor “side” lights flash, as had previously);
Have “Reset” remotes (“Lock&Unlock” pressed simultaneously); Have pulled & reset under-hood fuses and relays.
Would like to self-diag & save some dealer labor if issue is a quirky thing or a "simple fix". Gracias...

 

I had the same exact symptoms with my TL and it ended up being that my hood was popped. The "Anti-Theft" system won't trigger until all the doors, trunk, hood, etc. are all closed....similar to a house alarm. I'm not sure if that's your problem but it was for me. good luck

 

I'd check the settings on your car.

If you go to the settings, it should give you the ability to select *beep, honk, or off I believe. Check that, as you may have accidently changed it to *off* at some point.