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Key fob battery; spec and warning

johnse said:
Oops...
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Thanks! The article is slightly out of date; Google's Pixel 3 and later watches added UWB digital car key support early this year for its full list of dozens of car brands.
 
One easy/obvious piece of advice. Keep the fob away from your phone. Like, different pockets. This is obviously NOT the root of the problem, but it will improve your experience (I think). I’ve tested it for about five days.

As long as my fob is by itself in my pocket, I don’t seem to get the random fob alerts. When I have my phone in my pocket and the fob, I get the alerts.

The fob also connects with car quicker, and from farther away, when I don’t have my phone next to it. Agin, just a five day unscientific test.

I had this exact issue with my 2016 X fob for years.

I have an iPhone 15 Pro.
 
ilyabu said:
Well my key fob battery died today after only one month of having a Gravity DE. it started giving me "shake your key to wake it up" messages two days ago and today it was totally dead. There's obviously something very wrong with how the battery is used if it only lasts a month so hoping Lucid gets a SW fix out for that soon (and/or implements apple's digital key). Until then, for those interested the battery is a CR2450 Lithium 3V, which is a thick / weird size that seems to be only available online, so highly recommend getting some extras to keep around.
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Done. Just bought some.
 
hydbob said:
I wouldn't worry about the first battery dying, rather how long a fresh battery lasts for. Thanks for the info on the battery size. Ordered!
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I got a 2 pack of the CR2450 at my local Batteries and Bulbs shop. 10 bucks for a pair…
 
Ron_Burgundy said:
That’s a really good point about letting others use the car. I agree with that. A fob is much easier than explaining how the keycard works.

I have too many other items in my pocket to easily fit the Gravity fob - iPhone, AirPods case, work fob, wallet, etc.

For personal use, I far prefer PaaK, but completely get the use case for a fob and hadn’t thought about that.
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The card keys work well enough for valets parking my car in their garages… that is how Tesla has done it but also with a code secured valet mode that locks the areas of the car they have no business in and speed limits their driving. I hope Lucid gives us a codeable speed limit so we can lock the dangerous aspects of the car away from folks not ready to handle the power responsibly. Ie me and many teen drivers.
 
Ron_Burgundy said:
I always keep a keycard in my wallet even with PaaK. I had to use it for my Rivian a week ago when I was leaving work and realized my phone was dead…no phone, no PaaK. And they don’t have watch as a key (I really wish more folks did!). Lucid SHOULD work as watch as a key if they implement the Apple Car Key as they’ve said they will.

But I do hope to leave the fob in a drawer once PaaK comes out.
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I have several Tesla Fobs in my junk drawer already. PaaK and cards is plenty especially when they work reliably. Nanny controls on the car for speed and such let us loan the car to folks who don’t normally drive a car with 1k HP. Most folks who haven’t been reasonably trained should not drive these. By the way, The fob should be fine without any battery when held over B pillar sensor or placed over card reader in console. NFC should make dead battery fob equal to card key.
 
JeffSter said:
I have several Tesla Fobs in my junk drawer already. PaaK and cards is plenty especially when they work reliably. Nanny controls on the car for speed and such let us loan the car to folks who don’t normally drive a car with 1k HP. Most folks who haven’t been reasonably trained should not drive these. By the way, The fob should be fine without any battery when held over B pillar sensor or placed over card reader in console. NFC should make dead battery fob equal to card key.
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You’re right re: fob. It SHOULD do this, but mine did not act as the NFC key card when battery is removed. Just doesn’t do anything.
 
Ron_Burgundy said:
You’re right re: fob. It SHOULD do this, but mine did not act as the NFC key card when battery is removed. Just doesn’t do anything.
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I tested mine too… nfc not happy
 
Ron_Burgundy said:
Definitely have to carry the key card as the NFC back up.
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Well, that's just lame. And another hard to excuse lapse in Lucid's engineering judgement. I believe there's a video floating around of someone demonstrating the dead-battery functionality of the Air fob. So hopefully this is yet another software bug, and not that someone thought there was no need for the fob to still be usable when the battery is dead. My Toyota fob is smaller than the Gravity fob, and has both a backup mechanical key and a backup NFC key built into it. I know I'm just adding the broken record litany of fob complaints, but this shouldn't be rocket science to get right.
 
TahoeMichael said:
Well, that's just lame. And another hard to excuse lapse in Lucid's engineering judgement. I believe there's a video floating around of someone demonstrating the dead-battery functionality of the Air fob. So hopefully this is yet another software bug, and not that someone thought there was no need for the fob to still be usable when the battery is dead. My Toyota fob is smaller than the Gravity fob, and has both a backup mechanical key and a backup NFC key built into it. I know I'm just adding the broken record litany of fob complaints, but this shouldn't be rocket science to get right.
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I’m too lazy to look, but I believe the manual says it is supposed to work as an NFC key….
 
Ron_Burgundy said:
I’m too lazy to look, but I believe the manual says it is supposed to work as an NFC key….
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It does, under the key fob troubleshooting section on page 21 but I'm wondering if people have tried pressing the handle for 3 seconds too or just tapped the key.

"The key fob battery may need replacing; see Replacing the Key Fob Battery. If the key fob battery is depleted, you can still unlock the vehicle by holding the key fob near the driver's side enter pillar, (below the camera; the key fob should touch the pillar), then pressing the door handle for three seconds."
 
RandomDesign said:
It does, under the key fob troubleshooting section on page 21 but I'm wondering if people have tried pressing the handle for 3 seconds too or just tapped the key.

"The key fob battery may need replacing; see Replacing the Key Fob Battery. If the key fob battery is depleted, you can still unlock the vehicle by holding the key fob near the driver's side enter pillar, (below the camera; the key fob should touch the pillar), then pressing the door handle for three seconds."
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This has never worked for me. I wonder if they accidentally forgot to put the NFC element in the fob.
 
loefvinc said:
Maybe bad battery. I ordered a pack of cell batteries from Amazon while still well within the expiration date, they would only last a few weeks. Bought a different brand and those are fine
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What brand? I don't have my Gravity yet, but I bought a six-pack of Duracell CR2450s.
 
Fob has always worked for me. I hate my phone. Hate it.

A mechanical key would be marvelous, as would be mechanical switches, which respond instantly and always.

I would pay many much more for mechanical keys / switches and analogue gauges, and cranks for the windows.

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I feel sorry for young people, who have no idea how wonderful it is to have the tactile feeling and instant response of a mechanical switch.
 
As an update my fobs are going through batteries at the rate of one every couple of months. This is after the latest updates. So keeping lots of spare batteries handy.
 
JeffSter said:
I got a 2 pack of the CR2450 at my local Batteries and Bulbs shop. 10 bucks for a pair…
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You should not use a CR2450 battery instead of the required CR2032 for a Lucid Air key fob, as they are different sizes (CR2450 is much larger) and will not fit
. While a CR2032 is sometimes a substitute for a CR2025 if it fits, the CR2450 is significantly larger and could damage the fob or not fit at all. You must use the correct battery type specified by the manufacturer.
 
this post was originally about the Gravity key fob, not Air. Gravity uses CR2450.
 
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