I charged mine by putting the fob on the Oral B electric toothbrush charging station, it uses the same charging tech so will work. You have to play around with the positioning but really works well. Mine is a 2005 E60 and all the keys were charged this way from completely dead for years. Hope this comment helps.
Are you serious? I have the same problem. One of my keys is dead from 16 years without usage, but I also have Oral B charge station… Could you explain a bit more detailed how to do that? Thanks!
Give also heard the apple wireless works ALSO YOU CAN PLUG YIUR KEY into your car and keep the trickle charger on your battery so drainage doesn't happen and charge yiur key there inside it's domain keyhole lol
I am not speaking about people who live in London. Didn’t realise I even had people from that s**thole ! I was speaking about people who live in the nice country sides and travel 20 miles to local town like me 😁
So glad I came across this after getting my e90 a month ago. Really enjoy working on my car myself but worried this car isn't as easy. Subscribed to your channel thank you.
Good video, however, comfort access fobs don't charge up, they have disposable 2032 batteries, and they're not rechargeable, nor is the wired with induction coils for charging either. So if you have comfort access, you can drive with the fob in your pocket for a couple year's, and replace the simple battery when range or the battery icon appears on the dash. I repeat, disposable batteries do not charge. Non comfort access cars are in fact exactly as this video stated. They must be charged. And don't have replaceable batteries. People cut them open to make the change, however, once you remove the rechargeable battery, and replace it with a readily available one at any store, you run the risk of at the very least battery leaks, non rechargeable batteries will not respond well to being charged. There is a reason why some controller's open, while others don't. The one that do, comfort access cars, as those are regular batteries, designed to last only a couple year's. Your non comfort access cars with the rechargeable batteries. Tend to last upwards of 10 plus year's I hope this helps.
This response makes the most sense. So am I forced to go to the dealership to replace the " Non-Replacable" battery. My fob is now intermittent, not very often will it open the lock or engage the lock. I have to used the actual key to unlock and lock the door, but when I slide into cassette port vehicle starts just fine. Any confirmation would be great. 2011 BMW 328i E90
Cars with comfort access, the key fob battery is replaceable. Non-comfort access cars, the key fob battery is rechargeable when it is inserted in the key receptacle. The reason is with comfort access you don’t need to insert the key fob to start the car, as long as you have it with you. That’s why the battery is replaceable, people just have the key fob in their pocket or purse. It’s like this for US BMW e90. Not sure about other countries.
I didn't know but it .makes sense cause I've been working o drainage battery drain issues on my whole car from wiring trunk harness and my key fob judt died weeks ago never works but I've had it plugged into my car and charging? And works flawless again.... soo....
Partly incorrect, Some bmw keys including mine are a sealed unit with a rechargeable battery built in. It takes according to the manual 60 hours of driving to fully charge from dead. States right in the manual it's rechargeable. I've heard you can use a wireless charger, toothbrush charger, watch charger to charge them. However it doesn't work for mine as I came here because my battery is low.
yep but it might only be first gen e90 comfort access like pre facelift. I have a 2007 335i with keyless and the key's back just opens and you pop a new battery in. shame every bmw Ive ever bought only came with one key lol
Dean, you’re amazing. Thank you for your expertise and for making these videos. Sharing your knowledge is priceless and it’s great to have a resource like you for all of us BMW guys. Thanks again!
I know this sounds crazy, but hold the key to the bottom of your chin, open your mouth and press the key button. Doing this uses your body as a transmitter and will work from 25+ feet away. Hear me now believe me later!
The f90 isn’t a rechargeable coil cell , that slot is for use when the battery is dead . Wireless charging wasn’t available when the e90 came out nor the other one
How about F44? There is no key hole to put the remote key in! Would like to get the Forte products that you recommended, but the Amazon links said they dont ship to US!
With this key if you have comfort access there is a changable, non-chargable battery in the key. If you don't have comfort access there is a rechargable but not (by the average user) removable battery.
Looking forward to the video on swapping out the battery but changing the case as well. Hopefully you can change to a non rechargeable battery and just leave the fob in your pocket the whole time
This video is useful, but what about when your car is unlocking and the boot is opening by the fob, but it will not lock? I'm having to pull out the blade key and lock the car. Thanks for any help!
I want to toss the keys on the wireless phone charger. Split the uncomfort key looks like a simple swap if u can find button cell with contacts already tack welded which it just so happens to be you can.
Do not take the sealed key remote apart to change a battery unless you are willing to risk ruining it altogether. The batteries should last at least 7 years for non comfort access car key remotes. You need to buy a new key remote if it stops working as only the comfort access car key remotes can have the batteries replaced. If your non comfort access key remote stops working, you can use the emergency key blade (inside your remote) to get into the car via the door barrel on drivers side (alarm will go off) your remote should disengage the alarm and allow you to start the car after you push it into key port. If this doesn’t work it means your remote is totally kaput. To stop the alarm in this case close the door and lock it using emergency key blade. Top tip - Using the emergency key blade in the door barrel long term will eventually cause a collapse of the mechanism inside the barrel. Then you will have to break a window or call someone out to break into your car to get your log book out before you can buy a new remote at the dealer (if your one of those people)
Good morning, I was just wondering if you could shed some advice, you seem to be the main guy on you tube who knows his bmw stuff, I have just bought my first bmw, a 2015 120d msport, and I get a clunking and knocking from the steering rack when the cars up to temp, I've seen some videos where people replace a Bush that's re greased at the bottom end of the rack. Is it that simple, and does it cure the issue? Great channel, cheers nigel
@@brokelightskin9222 if you have an electric toothbrush place it on the charger for the night. Otherwise it may have a dead battery or need to be re - paired with your car. There is a way to do that but you'll need to Google it
Great timing, Dean as I was going to ask you about my E82 fobs. I always alternate my two fobs to keep them charged. My 1er is 2008 and I do not have comfort access so I need to insert into the cartridge. When I first bought the car (new) my spare fob went "missing" for three years. It was hibernating in one of my wife's purses that she used on a trip (bring spare in case primary goes missing). After three years it worked no problem. Question: how long will these fob batteries last do you think? They're essentially twelve + years old now so far no issues. Look fwd to your upcoming battery replacement vid thx again boss!
got same key on X5 E70. using one key i used to open my car from about 20meters, not have to be about 2-3meters away from the car... sounds like battery? I'm driving minimum 70mins on motorway everyday, so the key should charge, if it is not charging how to replace the battery? the key is sealed, like a glue...
How does this work on a 2011 X3? I purchased a new battery and the minute I replaced, the key fob stopped working. I paid over $100 to get it repaired but it stopped working after 3 days. I have to enter and start the car manually
I need to know how can get my hands on some of the seal treatment from Forte, I have a 2012 BMW X5M and I'm starting to notice smoke when I mash the gas hard so I would like to purchase some of the valve seal treatment from Forte. Could you send me any relevant info
Hi Dean I have 2010 mini r56 and installed a new/used cas3 and dme and have synchronized them and programmed a new key fob to them the car starts and drives but the buttons don't lock or unlock the doors can you tell me how or where to look to fix this problem please
Hi, I have 535xi 2014,i think I have a transmission problem, because when the car change from 2 to 1st gear I it make a dump, but not every time, when is on a full trotle is doesn't have the problem but some time it have???
Hi boss I have BMW series 1 2015 1.5 in disel I get sign of Drivetrain can u safest sir from where this problem come what exactly issue is car is normal drive normal after 20min I get sign Drivetrain
I have an E46 coupe and because of Covid and not using the car often the key went flat. Question.. can you charge this key on the phone charger pad on my new Audi TT?
Lol diversity antenna is your problem, its located on the off side of the rear window soon you won't even be able to do it at all. Replace it and it should be good again. Same happened with mine but now I can lock and unlock my car from the other side of a large supermarket car park. Dean has a video on this, look up "diversity antenna" replacement. P.s, the doc taught me how 👍
@@mkm7962 Well my garage seemed to think the problem is my tints on my rear screen and said he would have to peel the tint but I was like naaaah mate! So how much did that set you back mate?
my e82 has the ribs on the door handle and I've noticed the handle has felt hot to the touch? is the door handle gone bad? comfort access does not work
Does the key on my 2008 335i put out the RF signal while in the key slot in the dash. Engine on or off( listening to music). Worried about duplication of my RF signal out put against car thieves.
I have a 07 750i and my alarm randomly going off so I grab my key fob and realize nothing I press works so I replaced the battery in the key fob and it still didn’t work then eventually the alarm went off. What do I do now? I’m locked out and the door key dosent work ether
Honestly idk might want to Google it up and see what the forms say. You won't be the only one with that issue . First time I heard of it. I'm guessing weak battery and also might be a issue with the hood sensor.
I charged mine by putting the fob on the Oral B electric toothbrush charging station, it uses the same charging tech so will work. You have to play around with the positioning but really works well. Mine is a 2005 E60 and all the keys were charged this way from completely dead for years. Hope this comment helps.
No way????
Are you serious? I have the same problem. One of my keys is dead from 16 years without usage, but I also have Oral B charge station… Could you explain a bit more detailed how to do that? Thanks!
Give also heard the apple wireless works ALSO YOU CAN PLUG YIUR KEY into your car and keep the trickle charger on your battery so drainage doesn't happen and charge yiur key there inside it's domain keyhole lol
So, you're trying to say I don't need to buy a new BMW every time the key's battery ends?
Wish he said this earlier I'm on my 13th e9x
You can change the battery...
Hehe I don’t know bro it doesn’t really tell you just says “insert fob to charge”
😂😂
@@Mach_bro 😂😂😂 very good. Great laugh was achieved.
50 Miles a day?? bro thats like a 6 hour journey living in London
I am not speaking about people who live in London. Didn’t realise I even had people from that s**thole ! I was speaking about people who live in the nice country sides and travel 20 miles to local town like me 😁
@@BMWDoctor the reply of a real BMW owner
130 miles a day here in my n52
I used to drive over 120 miles a day to and from work lol
Aye aye painful
I recharged my spare keys by using an electric toothbrush charger! Just plug the charger in and leave key on top (touching) overnight, job done
What type
What type of toothbrush charger?
So glad I came across this after getting my e90 a month ago. Really enjoy working on my car myself but worried this car isn't as easy. Subscribed to your channel thank you.
Memsmnsage me man. Self taught bmw guy here and this is new shit for me too hahahaha
I guess I’m lucky. I have a 2007 328i that is nearing 14 years old.
Both key fobs still have their original batteries and have no problems!
Good video, however, comfort access fobs don't charge up, they have disposable 2032 batteries, and they're not rechargeable, nor is the wired with induction coils for charging either. So if you have comfort access, you can drive with the fob in your pocket for a couple year's, and replace the simple battery when range or the battery icon appears on the dash. I repeat, disposable batteries do not charge. Non comfort access cars are in fact exactly as this video stated. They must be charged. And don't have replaceable batteries. People cut them open to make the change, however, once you remove the rechargeable battery, and replace it with a readily available one at any store, you run the risk of at the very least battery leaks, non rechargeable batteries will not respond well to being charged. There is a reason why some controller's open, while others don't. The one that do, comfort access cars, as those are regular batteries, designed to last only a couple year's. Your non comfort access cars with the rechargeable batteries. Tend to last upwards of 10 plus year's
I hope this helps.
This response makes the most sense. So am I forced to go to the dealership to replace the " Non-Replacable" battery.
My fob is now intermittent, not very often will it open the lock or engage the lock. I have to used the actual key to unlock and lock the door, but when I slide into cassette port vehicle starts just fine.
Any confirmation would be great.
2011 BMW 328i E90
He stated that😊
Cars with comfort access, the key fob battery is replaceable. Non-comfort access cars, the key fob battery is rechargeable when it is inserted in the key receptacle.
The reason is with comfort access you don’t need to insert the key fob to start the car, as long as you have it with you. That’s why the battery is replaceable, people just have the key fob in their pocket or purse. It’s like this for US BMW e90. Not sure about other countries.
Didn't even know the keys can recharge
Same
They can’t
I drive a bmw with the same key and I didn’t even know if ima be real with u
@@titleistprov69 yeah they do because you're BMW straight up tells you to charge it when it's low duh
I didn't know but it .makes sense cause I've been working o drainage battery drain issues on my whole car from wiring trunk harness and my key fob judt died weeks ago never works but I've had it plugged into my car and charging? And works flawless again.... soo....
Just got a quote from bmw, 10 keys would match the trade in value. It's ludicrous how expensive a new key is.
I bought my E91 used. It only came with one fob. I managed to wash the fob a few years ago....... That was fun.
Lmao 🤣🤣🤣
This only applies to certain types of key fob and certain models of BMW.
Would be good to know what the fob/model combinations are.
Usually from 2007 to whatever later year lol😊
If the car has keyless entry, the key contains a user replacable, non-rechargeable battery unless someone ordered the wrong spare key.
Partly incorrect, Some bmw keys including mine are a sealed unit with a rechargeable battery built in. It takes according to the manual 60 hours of driving to fully charge from dead. States right in the manual it's rechargeable. I've heard you can use a wireless charger, toothbrush charger, watch charger to charge them. However it doesn't work for mine as I came here because my battery is low.
So where’s this charging hub then?
🛑 How were people charging fobs wrong? I mean, how else were people trying to charge the key fob??
Might not be the same overseas. In Australia my e60 comfort access has a non rechargeable battery in the remote
TanR My EU 2006 E91 has comfort access and CR2032 non rechargeable battery.
@@ulf5738 then it is even better as you can change the battery easily.
E90 Comfort access fob doesn’t have rechargeable battery. You replace the battery from time to time.
yep but it might only be first gen e90 comfort access like pre facelift. I have a 2007 335i with keyless and the key's back just opens and you pop a new battery in. shame every bmw Ive ever bought only came with one key lol
Dean, you’re amazing. Thank you for your expertise and for making these videos. Sharing your knowledge is priceless and it’s great to have a resource like you for all of us BMW guys. Thanks again!
Cant wait to see how to replace my batteries! I need to be within 10ft for it to work right now
thats not your battery thats your diversity antenna my friend
I know this sounds crazy, but hold the key to the bottom of your chin, open your mouth and press the key button.
Doing this uses your body as a transmitter and will work from 25+ feet away. Hear me now believe me later!
Same here😒
@@Dlawman69 or u could put it up to your ear and the key can always reach 100+ ft away text it out
@@Dlawman69 lol
I use an electric toothbrush charger to recharge my BMW key fob. Works perfect.
The f90 isn’t a rechargeable coil cell , that slot is for use when the battery is dead . Wireless charging wasn’t available when the e90 came out nor the other one
So how does it recharge if you don’t have that slot where you inserted the key fob?
🥴🥴
How about F44? There is no key hole to put the remote key in! Would like to get the Forte products that you recommended, but the Amazon links said they dont ship to US!
It'd be really cool if you linked to the key videos you talked about.
With this key if you have comfort access there is a changable, non-chargable battery in the key. If you don't have comfort access there is a rechargable but not (by the average user) removable battery.
HOW DO YOU KNOW IF U HAV COMFORT ACCESS
@@maxgeetar9423 the backs are different and comfort mode easier to take out but no charge while driving, you have to change batteries out so often
Looking forward to the video on swapping out the battery but changing the case as well. Hopefully you can change to a non rechargeable battery and just leave the fob in your pocket the whole time
🤦🏾♀️ my fob completely dead
@@mzbonita441 same. I have to get a whole new one at bmw. Emergency key gets annoying.
I didn't know the batteries could be recharged. I just replace them when they go bad.
How did u open the key ?
Rechargeable? The keys on my comfort access e90 and comfort access F87 were both non rechargeable batteries.
Yes on comfort access they are replaceable un like the normal witch is welded in
This video is useful, but what about when your car is unlocking and the boot is opening by the fob, but it will not lock? I'm having to pull out the blade key and lock the car. Thanks for any help!
I want to toss the keys on the wireless phone charger. Split the uncomfort key looks like a simple swap if u can find button cell with contacts already tack welded which it just so happens to be you can.
The non swappable battery key fobs was the dumbest shit BMW ever did. Good riddance.
This is my very first bemmer and your videos are just what I needed to understand what the hell im doing…!!! Thanks
So from my experiences with my E61, that i own since 2017, if something is wrong, or damaged, get it fixed. Or it will cost you a hell lot more after.
Right, well I swap keys every other week... And they are both still dead... What else could be the issue? Surely not both keys are buggered..
Could be diversity Antenna under the rear spoiler.
Haha! The image shown on the videos seems there's another key charging port on the back in the trunk.
You can use any wireless charger to charge these, i used a toothbrush charger to recharge mine
The interior of that thing looks bad compared to my E46. I'm glad I have a normal key too.
Do not take the sealed key remote apart to change a battery unless you are willing to risk ruining it altogether. The batteries should last at least 7 years for non comfort access car key remotes. You need to buy a new key remote if it stops working as only the comfort access car key remotes can have the batteries replaced. If your non comfort access key remote stops working, you can use the emergency key blade (inside your remote) to get into the car via the door barrel on drivers side (alarm will go off) your remote should disengage the alarm and allow you to start the car after you push it into key port. If this doesn’t work it means your remote is totally kaput. To stop the alarm in this case close the door and lock it using emergency key blade. Top tip - Using the emergency key blade in the door barrel long term will eventually cause a collapse of the mechanism inside the barrel. Then you will have to break a window or call someone out to break into your car to get your log book out before you can buy a new remote at the dealer (if your one of those people)
You can use any wireless charger, 8h on the wireless charger is enough
I've tried that, doesn't work
your thumb pic for this video shows a fob charging station. Where is that in the bmw?
Good thing my US spec x91 just uses 2032 button cells. I have enough stuff that uses them I have them by the case.
You can program the keys for each different driver
Stupid how bmw made the keys without replaceable batteries, unless you have comfort access
they made it so you never had to replace the batteries
Do you have to charge BMW indicators? I've seen so many who've forgotten to do so.
Good morning, I was just wondering if you could shed some advice, you seem to be the main guy on you tube who knows his bmw stuff, I have just bought my first bmw, a 2015 120d msport, and I get a clunking and knocking from the steering rack when the cars up to temp, I've seen some videos where people replace a Bush that's re greased at the bottom end of the rack. Is it that simple, and does it cure the issue? Great channel, cheers nigel
Where is this port for the diamond keys? I'm getting sick of having to use the electric toothbrush charger on an invertor
My diamond key went dead and idk how and what yu do ab it
@@brokelightskin9222 if you have an electric toothbrush place it on the charger for the night. Otherwise it may have a dead battery or need to be re - paired with your car.
There is a way to do that but you'll need to Google it
@@brokelightskin9222 also please sober up or at least proof read your comment before hitting send..
@@brokelightskin9222 you can buy the batteries on eBay or Amazon and there's videos here on how to replace. It's a pain to do though
Great timing, Dean as I was going to ask you about my E82 fobs.
I always alternate my two fobs to keep them charged.
My 1er is 2008 and I do not have comfort access so I need to insert into the cartridge.
When I first bought the car (new) my spare fob went "missing" for three years. It was hibernating in one of my wife's purses that she used on a trip (bring spare in case primary goes missing). After three years it worked no problem.
Question: how long will these fob batteries last do you think? They're essentially twelve + years old now so far no issues.
Look fwd to your upcoming battery replacement vid thx again boss!
I've got an '05 E90 and mine still works just fine, so you should be good for at least another 3 years :P
@@233kosta I just buy new batteries every 3 to 5 years they’re five bucks
got same key on X5 E70. using one key i used to open my car from about 20meters, not have to be about 2-3meters away from the car... sounds like battery? I'm driving minimum 70mins on motorway everyday, so the key should charge, if it is not charging how to replace the battery? the key is sealed, like a glue...
I have the same problem at the same car..
@@mariamihai1960 have you solved a problem?
Or you can use ur electric toothbrush charger and leave them on top (closer to the base) like u how u leave ur toothbrush.
Don't they need to be rechargeable batteries so they can charge?
No Bmw all has rechargeable batteries in there controls
I wonder if you put the key on a wireless charging pad if it would charge the key?
Recharge mine with my Samsung wireless charger
How long does a 2007 Z4 diamond blade key need to stay in ignition to properly charge?
How does this work on a 2011 X3? I purchased a new battery and the minute I replaced, the key fob stopped working. I paid over $100 to get it repaired but it stopped working after 3 days. I have to enter and start the car manually
Mine doesn’t charge but it explains a few things
What about for newer models that doesnt have that just the little key logo on the side
My key will open the car but for some reason dont lock... same thing happened for spare key I changed battery and now the key dont even work
Pull your light switch out
I need to know how can get my hands on some of the seal treatment from Forte, I have a 2012 BMW X5M and I'm starting to notice smoke when I mash the gas hard so I would like to purchase some of the valve seal treatment from Forte. Could you send me any relevant info
Hi Dean I have 2010 mini r56 and installed a new/used cas3 and dme and have synchronized them and programmed a new key fob to them the car starts and drives but the buttons don't lock or unlock the doors can you tell me how or where to look to fix this problem please
Hi mate, thanks for the video. I regular have my key in the ignition but it still isn't charging. It's the 2nd key to do this. Any thoughts?
How do I charge the keys for F25 X3? Of course there is no key-slot!
Thank you
Hi, I have 535xi 2014,i think I have a transmission problem, because when the car change from 2 to 1st gear I it make a dump, but not every time, when is on a full trotle is doesn't have the problem but some time it have???
great video, simple, clear, & useful... subscribed
Where the video to open the key fob
Key stuck in ignition, and dead car battery...
ANY BODY have answer
I have a 2012 320d sport and I don't have that hole for the key
Hello sir…my bmw e90 2010 is smoking so bad what’s the problem and what do I do about it?
Hi boss I have BMW series 1 2015 1.5 in disel I get sign of Drivetrain can u safest sir from where this problem come what exactly issue is car is normal drive normal after 20min I get sign Drivetrain
i just leave the car where its parked when the keys dont work anymore and go buy a new car from the dealer.
I waited this video, thanks man...🙏👍
Is there a place for the f80?
how about a g80 m3, it doesnt have anywhere to stick in the key, do i just replace the battery every time?
key charging hub?? where is that?
Still don’t get it
I have an E46 coupe and because of Covid and not using the car often the key went flat. Question.. can you charge this key on the phone charger pad on my new Audi TT?
What's your charge to replace? .. where do we contact you
When you change the battery does it need reprograming
Use the keys man .. Drive with it ..
The battery in your car - yes you need to register the new battery.
In the remote, no you shouldn't have too.
I no about the car battery i mean the key battery alot of people say the key needs reprograme
My e60 door only opens if I press the fob next to the rear window..I can't be living like this in 2021
Lol diversity antenna is your problem, its located on the off side of the rear window soon you won't even be able to do it at all. Replace it and it should be good again. Same happened with mine but now I can lock and unlock my car from the other side of a large supermarket car park. Dean has a video on this, look up "diversity antenna" replacement. P.s, the doc taught me how 👍
@@mkm7962 Well my garage seemed to think the problem is my tints on my rear screen and said he would have to peel the tint but I was like naaaah mate! So how much did that set you back mate?
my e82 has the ribs on the door handle and I've noticed the handle has felt hot to the touch? is the door handle gone bad? comfort access does not work
What about if you haven't driven in 2 months and the car cranks smells like gas but wont start in a e93? Could that be the key or a fuel issue?
Thanks for the advice
great channel bro love the conntent all the time
I appreciate that
My spare key, which I haven't used for months, doesn't lock the car anymore. This must be the issue. Thanks Dean.
Just use it as .. it will charge while driving ..
I only have one key, so basically to charge it I actually have to plug it in? Ok that sounds great I have a 530xi 2007
Bruh
I charged my second key with my toothbrush charger 👌
Can I just leave the fob in the car to recharge
Is there a way to recharge the key fr newer models like F30's F32's F80's etc?
Does engine have to be running to charge remote battery?
hey would you happen to know i have a 06 325xi and after it’s warmed up it starts making a crunching noise from the front by the belt?
Bro, you probably need to check the vanos and get the rattle kit on line.
i just bought a 135i 2009 i got two keys one of them is going out do i just plug in
and also how do i reprogram a key
Anyone may have an idea, where can I make new keys for 1991 BMW 850i beside dealer!! I lost the key.
I don’t have that in my 740li
Hi is this available for E60 2004 one of my Chey don't work and I use the Chey 2 weeks
Please help me out to upgrade my 318ise upgraded headlights. Which ones best and the cost. Thank you
What’s the name of the song being played at the beginning
Does battery level effect fob button range? Most of the time i need to be 20ft range from the car
Does the key on my 2008 335i put out the RF signal while in the key slot in the dash. Engine on or off( listening to music). Worried about duplication of my RF signal out put against car thieves.
No it does not
I have a 07 750i and my alarm randomly going off so I grab my key fob and realize nothing I press works so I replaced the battery in the key fob and it still didn’t work then eventually the alarm went off. What do I do now? I’m locked out and the door key dosent work ether
Honestly idk might want to Google it up and see what the forms say. You won't be the only one with that issue . First time I heard of it. I'm guessing weak battery and also might be a issue with the hood sensor.
I charged my second keyfob using a phone wireless charger