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Key Fob Battery Replacement

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Old Jan 6, 2015 | 08:27 PM
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Default Key Fob Battery Replacement

One of the things scheduled for the 15K service is key fob battery replacement. Does everyone do that on schedule? I looked up CR2032 as the key. But since two people drive the car thus the 15K is spread across both fobs(75-25), what has been everyone else's experience?

Going to replace them, but curious. Also, Sometimes maintenance can cause wear, like opening the plastic shell of the fob.
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Old Jan 6, 2015 | 08:32 PM
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I'm going to replace mine at 15K, I'll just buy some from AutoZone and do it myself.

To pry it open, don't use the metal key to do it. Take out the metal key and stick both of ur thumbs on the opposing side in opening and separate them open. U don't need a lot of force to do this, I've done it before and no damage to the plastic.
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Old Jan 6, 2015 | 09:31 PM
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No. Just replace it when the battery no longer works.

My keyfob battery is 2.75 years old and still works perfectly after 23k miles
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Old Jan 6, 2015 | 11:34 PM
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im at 25k mile still working.
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Old Jan 7, 2015 | 08:36 PM
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The mileage has nothing to do with it. If you use your fob to open windows or start your car it will obviously use far more battery than if you just keep it in your pocket or purse.

And, when you do feel as though you need to replace it, (I got a warning on my dashboard that the fob battery was weak) unless the dealer is going to comp it, get the CR2032 at Walmart for peanuts and put it in your self. It might take a minute or 90 seconds.
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Old Jan 7, 2015 | 08:38 PM
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Oh I didn't know u'll get a warning on the dash.. In that case then I'll wait until I get a warning too.
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Old Feb 23, 2017 | 09:59 AM
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Any reprogramming required with the replacement of a battery? My wife just took her car in the for the 15k and the dealer quoted something crazy like $300 to do this. I want to know if they were trying to take advantage of her as we know the prior dealership owner and would plan informing new management that this is the kind of stuff that gives dealerships a bad name.
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Old Feb 23, 2017 | 10:07 AM
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Originally Posted by Voda48
Any reprogramming required with the replacement of a battery? My wife just took her car in the for the 15k and the dealer quoted something crazy like $300 to do this. I want to know if they were trying to take advantage of her as we know the prior dealership owner and would plan informing new management that this is the kind of stuff that gives dealerships a bad name.
What? What what what? Are you sure they are not quoting you a full replacement of the key fob? The battery replacement is $15-$20 tops and requires no programming at all.
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Old Feb 23, 2017 | 10:55 AM
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Originally Posted by Voda48
Any reprogramming required with the replacement of a battery? My wife just took her car in the for the 15k and the dealer quoted something crazy like $300 to do this. I want to know if they were trying to take advantage of her as we know the prior dealership owner and would plan informing new management that this is the kind of stuff that gives dealerships a bad name.
Like already mentioned, I think the dealer may have misunderstood you and quoted you for a new key. I told my dealer not to change the battery once (since I haven't used the second key much) and they took $10 off the bill; I'm assuming that's what they charge.

Changing the key battery is one of the easiest you can do yourself. Just buy the battery, take metal key off out, use the edge of the metal key to pry the key open on the bottom edge of the fob (there is a small slot to insert it), change battery, and snap it back in place.
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Old Feb 23, 2017 | 11:15 AM
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Get the battery from Walmart and do it yourself. Here you go YouTube video how to open the fob.

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Old Feb 23, 2017 | 11:30 AM
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You can wait until you get the warning on the dash and just buy your own battery and easily replace. Got my Fob battery at AutoZone for a couple dollars...works great!!!
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Old Feb 23, 2017 | 11:57 AM
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Good to see my videos are helpful!

We normally get about 2 years before the battery needs replacing in our remotes. The car will tell you when the battery is low -- look for the message on the instrument cluster when you shut the car off.
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Old Feb 23, 2017 | 12:59 PM
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Originally Posted by Voda48
Any reprogramming required with the replacement of a battery? My wife just took her car in the for the 15k and the dealer quoted something crazy like $300 to do this. I want to know if they were trying to take advantage of her as we know the prior dealership owner and would plan informing new management that this is the kind of stuff that gives dealerships a bad name.
I think the dealer must have misunderstood your wife...and thought she wanted to buy and program a new key fob remote to the car, which probably would cost around $300.

You can buy the CR2032 coin batteries at any drug store (CVS, Walgreens, Rite Aide, Walmart, Target, etc.) for a couple dollars - or $4.00 for a 2-pack. It takes all of 5 minutes to replace the battery, taking your time. I think it's best to replace the batteries in both key fob remotes at the same time just so you know they are both fresh. They should last at least a couple of years based on usage. There is a 'Low Battery' warning that displays on the instrument cluster when the key fob remote battery needs changing, but I would not wait until you see that warning...





Last edited by bclexus; Feb 27, 2017 at 07:21 AM.
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Old Feb 24, 2017 | 10:30 AM
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I got 3 batteries for $1 at the 99 cents store.
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Old Feb 27, 2017 | 02:41 AM
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Originally Posted by bclexus
I think the dealer must have misunderstood your wife...and thought she wanted to buy and program a new remote to the car, which probably would cost around $300.

You can buy the CR2032 coin batteries at any drug store (CVS, Walgreens, Rite Aide, Walmart, Target, etc.) for a couple dollars - or $4.00 for a 2-pack. It takes all of 5 minutes to replace the battery, taking your time. I think it's best to replace the batteries in both remotes at the same time just so you know they are both fresh. They should last at least a couple of years based on usage. There is a 'Low Battery' warning that displays on the instrument cluster when the remote battery needs changing, but I would not wait until you see that warning...




https://youtu.be/8tmuDNY2oFQ
Thanks, the $300 quote was apparently something else on the car. It was actually my mom's GX where the dealer quoted her $80 to replace the battery, I quickly Swapped batteries in both remotes with issue for about 9 total.
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