[631]

I checked my battery using my meter, and saw that while the battery tested as good, it was only at 30% charge and needed to be put on the charger.

I let the car sit for around an hour to make sure whatever was going to fall asleep would, and then attached my amp clamp to the positive battery line.

There's a constant 800 mA draw that's always there.. engine off, ignition off, car cold and quiet.

Left alone, this could easily drain your battery in a couple of days.. this is likely one reason why Toyota tells you to drive it 30 minutes once a week to keep the battery up.

This draw is caused by the Smart Key system; that module never goes to bed, as it is always sending out pings looking for local transponders.. and the one to your car, in particular.
I verified this by pulling the fuse, and the draw plummeted to around 80mA or so.

So.. for all you fellow Cross owners out there... if you've got the SmartKey system (I honestly don't know if all trims have it or not. Mine, the XLE, does), then I'd recommend getting a Battery Tender and plugging in your car when you can, to top the battery off. I've put one in mine, and haven't had a low battery voltage situation since.

They're pretty cheap, weatherproof, and you can tuck the pigtail in such a place as to be able to plug your car into a 120v without even having to raise the hood.

-Hinoki

 

[pelfrank]

You can try to enable the "battery-saving mode" and verify if it makes a difference. I enable this every time because I don't drive much and for would be thief’s who try to amplify your remote key signal to steal your car.

 

[631]

That certainly might help.. I’d previously done that to my spare fob. If I do that to my primary one, then perhaps the SmartCar module will shut down, given that there are no transponders in range. I’ll still keep it hooked up to a battery tender, though.