key battery
 

any idea how long the battery in the key lasts.

nvm...

From the manual:

The Intelligent Key port does not charge the Intelligent Key battery. If you see the low battery indicator in the vehicle information display, replace the batter as soon as possible.

[If the battery dies] inserting the Intelligent Key into the port allows you to start the engine.

Mine lasted 2 years before replacing.

:icon18:

That isn't a recharger. Just a key holder. In the event your battery dies you can insert your key in the car and get the car started till you buy a battery. You can open the trunk by placing the key in the door and making sure both doors have been opened with a double turn. Then the trunk will open when you touch the button in the rear.

Sorry to burst your bubble but you need a watch battery for your fob. With daily use they last about 1 year. Maybea few months longer???

:icon18: how do you like that huh? Doesn't feel good does it? Yeah take that :icon18::icon18::icon18::icon18::icon18::icon18::i con18::icon18::icon18:

:iagree:

Haha no need to go back and edit your post

But wow that's not long of a life span for such little usage

That's unusually fast.

I been using these fobs for 4 years and the best I've done is about 15 months without changing the battery. Salesmen will tell you 2 to 3 years but I don't know a whole lot of people that get that much out of a bettery.

Thanks for the info my battery has been in since i bought the car 8/09. Guess its time.

Damn, then you're doing better than me. :)

I was told the key port will drain the battery and is only to be used when the battery in the key fob is dead. I was given that information when I went for a test drive in an Infiniti G25x. We should keep an extra battery in the glove box.

Yes, I searched, so forgive me if i'm a dummy.... is it simply a matter of prying open the fob and buying a new battery at a local retail place and pop it in?

Mine has lasted for 3 years and seven months and 100k miles. The battery is pretty low right now.

What is the model # for the replacement battery?

^ What he said

CR2032 and I replace mine on a yearly basis just because...

ummmm
 

So how do you get back in the car if the fob dies (noob question for future purchase) you could drive the car but what if it dies and car is locked :ughdance:

there is a secret button but you have to buy the car first to find out.

the fob comes apart to reveal a key which can be used on the driver side door...

but wat if you drop that key into a sewer?

better get your spare :p if you lose that one, look on the forum for one FS :icon17:

dang you are covered! :tup:



DIY how to open door when battery is dead, or dropped mechanical key into sewer or lost spare. :icon17:

I bought my Z in September of '09 and just replaced the battery a couple of months ago. I noticed that pressing the unlock button on the handle did not always unlock the door, replacing the battery solved that. However, the longevity of the battery is probably because I rarely use the fob buttons to lock or unlock the doors or roll down the windows. When I exit the car I thumb the lock button on the inside of the door to the lock position out of habit and when I walk up to the locked car I'm close enough that pressing the unlock button on the door works.
If you are pressing the fob buttons constantly out of habit, your battery life will be less.

One of mine quit at about the 4 year mark.

Three and a half years here. Obviously, it's a function of how many times you press the buttons on the fob.

battery indicator came on today, iv had it for 2.5 yrs so looks like its time to replace the battery. I have over 50,000 miles.

It lasts until it dies... :D

Ahem, anyway, my first battery lasted well over 2 years. I'm on my second now, I guess it's about 2 years old.

First battery lasted a year and a half but I've been ripping through a battery every two months since... Ordered a new key thinking that might be the problem.

Depending on how often you use the buttons, it can last about 2-4 years. These batteries are dirt cheap to replace if you order them online.

Maybe you press buttons accidentally when the keys are in your pocket. It used to happen to me ALLLLLLLL the time

Just started year 5 with mine, but I've only put 12,700 miles on my '09 and probably used each of the two fobs intermittently.

Also, incidentally,
 

when you do replace your battery, go to Radio Shack, not Nissan. Nissan's battery, from the parts department, is way more expensive than the same darned thing from Radio Shack---and the kid at Radio Shack will put it in for you, too. I did that with my Altima coupe.