anyone know why my 2016 IS300 makes a alarm noise while i'm washing the outside mirrors?

 

Elaborate a bit.. You mean while you're washing the car?

 

Is the car running and the key in your pocket?

It could be 'Key Not Detected' alarm

 

Yes, while i'm washing the car and the key is inside on the console. Car is not running.

 

That's your car telling you not to leave the keys in the car lol. If the key is within the vicinity of the car while you're washing it, spraying the door handles will lock and unlock the car, or in your case, telling you the key is still in the car.

 

Thanks, didn't know that. I'll remove the key next time.

 

Alternatively, you can cover the key (even with key case) in aluminium foil completely while washing your car. The foil will block the transmission. This is what I recently do in coin car wash bay as it is quite incovenient to have the doors unlocking and locking during a car wash process.

On extra caution if you plan to do so ------ALWAYS put your key in your pocket rather than in the car as if you press the lock button on the door accidentally and then close the doors while your foil-covered key is inside the car, you will be stuck with a locked car with a aluminium foiled key inside!

 

Oh, I forgot... If you press and hold the lock button then press the unlock button twice it puts the key into battery saver mode. The key will be in "sleep mode" and won't be sending out any wireless signals out to the car. You can way it back up by clicking the lock button.

 

noticed this the other day too... why does water on the unlock sensor in the door handle do this? Does this mean during a heavy rain storm if you leave the key in the car it'll sit there beeping?

 

The lock and unlock "button" is capacitive, similar to the screen of your phone. Same logic if there's a drop of water on your phone screen, the phone will sometimes register the droplet as a finger and the screen will move.

The rain has never locked or unlocked the car before, but then again I've never left the key in the car...

 

Thanks for the tips. I didn't know that. Will try this trick next time.

 

Thank you!!!! That helps.