Battery / Alarm

[is200 Newbie]

Anyone know if disconnecting the Battery will set the alarm off - dont know if these have Battery back ups or even if they are fitted to all the IS's

[ChrisIS200SportTTE]

No that won't set the alarm off as long as the car is unlocked. You get about 5 beeps from inside the car when you disconnect it. Just lock each door manually then lock the drivers door with the key once your disconnected.

I always disconnect mine when going on holiday or leaving it stand for more than 3 days :)

[sparkystav]

The siren is Battery backup though so if the battery's removed with the alarm set itll go off.

[ChrisIS200SportTTE]

Oh right Stav. Im confused now, so how do you change a Battery then? Lexus swapped mine over for me so never done it. I just disconnect the negative when I'm going away, gives off those beeps and that's it

[sparkystav]

Because they changed it when the alarm wasn't set.