key battery low

Change the battery in the key fob

 

welcome to priuschat! instructions in your owners manual, or the dealer will do it for you for a 'small' fee. all the best!

 

It's very easy to change. Take your real key out and on the bottom you will see a spot to insert the tip of the key just twist and your key fob will come apart. ( This is for smart keys ) If you don't have a smart key then I am not sure.

 

if you can't take the key how, and kinser the tip of the key, pm me.

 

@TC400, turn off the Autocorrect, or put down the alcohol lol.

 

You can use your spare key until that bad boy goes bad and then change the battery on both of them

 

Don't worry, I got this warning on my LS460, just change the key fob battery (I think I went on Amazon and bought 10 batteries for $11.00 )

 

lol whoops. sometimes it's both

 

The battery in the non smart keys is only for the remote for the door locks. If you can live without the remote lock/unlock ability then the key's battery isn't actually needed to start and run the car. The anti-theft immobilizer reads the electronic code from the key's passive transponder chip - it's powered by the electric field put out by the reader next to the key slot on the steering column. It works much like the passively-powered smart chips in "pay wave" credit cards.

 

I just got this same warning. Easy enough to change battery, but I am curious. Does anyone know (from experience) whether this warning means the battery is low and will be dead in a couple of months or more like a couple of days?

 

it probably varies like any battery, but keep in mind you can still start the car.

 

Oh yeah, I keep forgetting about that as I've never tried it. I'm assuming if it happens to die, it's not going to need to be re-programmed, will it?

 

nope, just put in a new battery, and you're good to go. do you have two fobs?

 

Yeah, I have two. I was going to use the other for a while until it starts giving me the warning.

 

I dealt with that message for a month or so before I changed it.

 

When you open up the fob, everything's really exposed/funky. For something that costs $200~400 to replace, they could have made the battery access a little less like open heart surgery. Also, I find a flat blade screw driver that's slightly wider than the manual key tip makes it easier to prise open.

 

Remove key hold remove key slider then slide bottom off remove 4 screw 04-09

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check the voltage before installing. i suppose loudal is all set.