Pressing the door handle issue

[Pragmatic]

Today pressing the handle did wake the car up. Not sure what the issue was yesterday.

 

[Solomente]

This doesn’t make sense. There’s no reason to have both. If you have the fob in your pocket, mobile key is completely unnecessary. And even if you don’t use the fob, mobile key is not reliant on the app being open. It is, however, somewhat reliant on the phone being awake, at least to operate more quickly.

Neither my fob nor PAAK is totally reliable so I always carry both because the redundancy definitely makes my handles present much quicker. 90% of the time the handles are out when I reach the car, and if not I can't remember ever waiting more than 2 extra seconds. If I use just the fob or just the phone, I sometimes have to mess with it for minutes.

 

[BS8899]

You’re saying it’s the Keymaster?

View attachment 39156

Most cars, EVs and ICE cars, nowadays have sentry detection of people approaching, is that correct? In order words, you don't have to touch anything on the car to sense the "key" (be it FOB, phone, etc.).

This Sentry function is not the intrusion sentry we talked about vis-a-vis, turn on the HD cameras and start recording. It is more akin to a room light occupancy sensor.

In Lucid's case, the main computer has to wake up to decode the FOB/phone key in order to unlock? If so, how much time does it take for the computer to be ready to decode the FOB/phone presence and to send the signal to unlock the doors??

An adjunct question:
> if I parked my car in the garage and there were no disturbances for hours, the "sentry" system still scans for intrusion periodically, correct? If so, how often does it scan?
> now, the opposite situation: I kept walking in and out of the garage carrying my FOB or phone. After multiple triggers (say 10+), doesn't the sentry/computer stop unlocking the car? Then, you actually have to touch/push the car door lever to actuate. Is that correct?
> I also noticed that when my Lucid locking/unlocking was working well in my garage, but when I come out of Costco and approach my Lucid, it is slow to respond. My theory (without proof) is that the people traffic around my car at the Costco parking lot tired out the Sentry trigger and it went to hibernation. I don't have any insight into the how the sentry sensitivity is controlled.

 

[socktucker]

Most cars, EVs and ICE cars, nowadays have sentry detection of people approaching, is that correct? In order words, you don't have to touch anything on the car to sense the "key" (be it FOB, phone, etc.).

This Sentry function is not the intrusion sentry we talked about vis-a-vis, turn on the HD cameras and start recording. It is more akin to a room light occupancy sensor.

In Lucid's case, the main computer has to wake up to decode the FOB/phone key in order to unlock? If so, how much time does it take for the computer to be ready to decode the FOB/phone presence and to send the signal to unlock the doors??

An adjunct question:
> if I parked my car in the garage and there were no disturbances for hours, the "sentry" system still scans for intrusion periodically, correct? If so, how often does it scan?
> now, the opposite situation: I kept walking in and out of the garage carrying my FOB or phone. After multiple triggers (say 10+), doesn't the sentry/computer stop unlocking the car? Then, you actually have to touch/push the car door lever to actuate. Is that correct?
> I also noticed that when my Lucid locking/unlocking was working well in my garage, but when I come out of Costco and approach my Lucid, it is slow to respond. My theory (without proof) is that the people traffic around my car at the Costco parking lot tired out the Sentry trigger and it went to hibernation. I don't have any insight into the how the sentry sensitivity is controlled.

Here’s something I noticed, which speaks to your suspicion.

If I place my phone near the car to wake it up, and set it down, I can walk around and the car will lock and unlock as I walk around, even if the phone itself doesn’t move. This makes me think it’s using cameras to detect motion as long as a key is near.

 

[dbsb3233]

Most cars, EVs and ICE cars, nowadays have sentry detection of people approaching, is that correct? In order words, you don't have to touch anything on the car to sense the "key" (be it FOB, phone, etc.).

Motion detection is a different thing than fob tech. Some cars have sentry too, but nearly every car has had fob tech for decades. The car's fob receiver is supposed to be active 24x7. No car wakeup should be needed.

* "supposed" to be, when working properly, that is.

 

[BS8899]

Here’s something I noticed, which speaks to your suspicion.

If I place my phone near the car to wake it up, and set it down, I can walk around and the car will lock and unlock as I walk around, even if the phone itself doesn’t move. This makes me think it’s using cameras to detect motion as long as a key is near.

Maybe it is cameras. I suspect it uses the ultrasound sensors for lower power consumption.

My garage in AZ is far away from my bedroom. As such, the car does not see my phone. In my Marin County house, my bedroom is 2 floors up right over the garage. As such, it sees my FOB/phone all the time. I used to get messages from the Lucid app that says it sense multiple triggers and will start ignoring them. I had to put my FOBs in a Faraday pouch to stop those false proximity triggers.

My take is, the car senses the presence/proximity of people using a low-power sentry system, probably ultrasound or infrared. Once the presence of an intrusion is detected, it turns on the computer to detect/decode the FOB/phone. After multiple (say 10+ over a short period of time) "intrusion triggers" and still no key/FOB was detected, the sentry system readjusts its threshold the car to u. Now, if you approach the car during that time, it takes longer for the car to respond and to try to look for the FOB/phone.

 

[socktucker]

I had to give them my Lucid account login and password because that’s the only way they can test it. They tested it on an iPhone 16 and said it works. I have an iPhone 15. But that’s it, they literally have no way to test mobile without without using your credentials to login to their iPhone.

So I have video of it not working, they have video of it working…but with a different phone model.

I give up. This is not a serious company.

 

[socktucker]

Update, just read the invoice. They got it to open with proximity unlock but forgot to test the handle press issue. Also the techs use their personal phones, which seems weird.

Round 3 at the drawing board.

 

[Solomente]

Here’s something I noticed, which speaks to your suspicion.

If I place my phone near the car to wake it up, and set it down, I can walk around and the car will lock and unlock as I walk around, even if the phone itself doesn’t move. This makes me think it’s using cameras to detect motion as long as a key is near.

That seems very odd and I have the exact opposite behavior. I hand wash my car basically every Saturday and in order to keep it from unlocking and stealing the music from my earphones to the car interior, I place my phone down (near the car) and push in the handle to lock it. As long as I don't move the phone, it never unlocks while I am moving all over the place.

I'm assuming you don't have the fob in your pocket when you're walking around the car. Maybe try NOT moving around and see if it just randomly locks and unlocks while the phone is nearby (if you ever get your car back)

 

[borski]

In Lucid's case, the main computer has to wake up to decode the FOB/phone key in order to unlock?

The car has 70 or so ECUs. I’m not sure what you mean by the “main computer.” Not every ECU needs to be awake.

It does not use ultrasound or cameras for proximity detection.