cazzara

I ran into the store and left the key in the car with my wife. The car shuts off and the air conditioning stopped. Is there any way to change this setting so the car will stay on?

places

All that wonderful tech.

sackboydad

I hate it. No offense to the OP, but I don’t leave my keys in the car with no one in it. Ever. But... there are many times I will leave the car to run in somewhere and my wife is in the passenger seat. The car still shuts off when someone is in the car. Really dumb. I understand shutting off if you leave and there’s no one there but this sucks.

AWTX

This is really a thing? I step out of the car in our driveway to move the trash cans into the garage all the time, close my door so the car stays cool and bug-free while my kids are in the backseat. For the 2020/2021 GLS, the car turns off, no a/c, while my kids are in the car? that is really bad. I hope there is a setting to disable that "feature".

sackboydad

I am wondering if it was some kind of OTA software update that just pushed blindly to the car.

I only started noticing it about a month ago. We've had the car since last February and I know I've gone inside with others in the car while it's running.

And by the way, it doesn't matter if you leave the Key FOB in the car, I think it senses there's no weight in the driver's seat after a minute or two and shuts the car off. Yes, it get very hot. At the very least, for crying out loud, notice if someone's sitting in the passenger seat and decide if the car should be shut off.... heck.... ALL the seats have sensors in the cushion to tell whether it should complain that no seatbelt is being used, or to determine if the ABS bag should be turned off by weight in the passenger seat.

Yeah, I can see a lawsuit coming on this one when someones kids overheat when mom goes in to 7-11 to get a few items and the kids are roasting in the car.

darlop

Horribly unsafe. This is a fundamental problem with keyless ignition.

Here's another: https://mbworld.org/forums/s-class-w...ncoln-key.html

wolds

Got mine mid March and it has always behaved this way. I hate it for the same reasons others have mentioned. I do believe there was an OTA update that was pushed to mine without any notice or interaction, but behavior in this area didn't change for better or worse. What I did notice change was only the driver door unlocking with one keyfob button click instead of all doors. All previous cars with keyless entry I've had before this was at least configurable, but I can't find a setting anywhere for it. For all my life I preferred the current setting actually but now that my family is with me most times when using this vehicle I prefer the opposite. I understand the security implications, but I just want a choice to configure. 😔

darlop

You have to set this on the keyfob by holding down a button. Its in the manual.

What's dumb is that practically every other setting for this car is in MBUX but for this you have to remember button presses on your key. While in my BMW this option IS in the infotainment system. These types of inconsistencies really drive me crazy.

wolds

I should have known. 🤦🏾‍♂️ Time to revisit the manual now that I have more hardened preferences to see if I'm missing out on anything else that annoys me that I might be forgetting. Will have to wait I'm not sure how long though because I just dropped it off for a brake fluid leak that they told me was melted body insulation from manufacturing or something like that 2 months ago.

I completely agree it should be in MBUX though. Now I wonder is it literally not tied in physically or if they just didn't program in a menu for it.
​​​​

darlop

https://www.dallasnews.com/business/...-deadly-error/

This is a "safety feature" in case you accidentally leave your car on. It took 10 years and more deaths than that for them to figure this out. And then maybe in another ten years they will consider the safety of people like your wife.

ksalno

Seems like a big difference between someone who parks their car, takes the key fob, and leaves for more than 10 minutes and someone who leaves passengers in the car with the motor and A/C on, the key fob in the car, and is gone for less than 10 minutes. If MB can design a car that parks itself and can read the road ahead to adjust the suspension 1000 times/sec, you’d think they could code an algorithm that can tell the difference.

cab2u

I have been waiting for this thread to start. I cannot believe that the car shuts off with the key and other people in the car. It makes absolutely no sense. It's stupid and has to be changed. I can go on ranting about this for pages.

darlop

Yeah its silly. There are certain things about a car that have always been universal. The gas pedal is on the right and the brake is on the left.

If you left the keys in the ignition you know the car is still running. If you take the keys with you you can be sure there is no way for the car to start. But now Keyless Go completely flips all this upside down. And they are constantly having to come up with workarounds for it.

I guess there are 2 workarounds we can do ourselves: If you are leaving behind an adult have them switch to the drivers seat, otherwise you can start the car with remote start after you leave.

wolds

I've seen that this 1st work around will not work months ago. During the last few weeks of my wife's pregnancy, Covid-19 cases were ramping up and healthcare providers started restricting office visits to just the patient so I could no longer go in with her, but I still took her to the appointments and waited in the car working on my laptop (remaining in the driver's seat the entire time). It seems like the car stayed running longer, but still it eventually shut off. I didn't notice the exact timings since due to auto start stop being really smooth. Ultimately I would notice the temp in the car feeling hotter and look at the dash to see that it had shut off.

The 2nd work around I have considered, but IMO this is not a great option due to the number of actions that must be taken to trigger remote start. I'd be say 80% happy with this option if I could remote start it with the key fob. The app glitches out for me maybe 20% of the time and that small percentage seems to be when I need it to work the fastest, so this work around for me is pretty non ideal.

darlop

It will still turn itself off after one hour of idling even if you are in the driver's seat.

My Honda has remote start on the keyfob and I agree it is much more convenient than having to take out my phone, unlock it, launch the app, wait for it to connect...

wolds

I would have been much happier with 1 hour. For me it was much shorter than that, maybe 30 minutes at most.

cazzara

It shuts off after less than 10 min

midcityeng

We're currently exploring the development of an aftermarket solution for this issue.

darlop

Remote Start turns off after 10 minutes. If you manually start from the driver's seat I think it stays on longer.

AWTX

Does buckling the seat belt before closing the door keep the car on indefinitely? Not sure if it uses weight sensor or seat belt. If seat belt they make tiny clickers and sell on amazon: originally designed to stop the "ding ding" when you get in the car and are using your car off-road or where a seat belt is not required.

darlop

Ok I've just used remote start for the first time to cool off the car and it turns off as soon as I open the door. What's the point then? Do the people who design this ever actually use the car?

darlop

A possible solution!

Can someone please try this and let us know how long the car stays on. I just tried it briefly and I didn't get any warning messages when I exited which is a good sign.

wolds

I saw that earlier. I'm going to try it but I never go anywhere so it's completely inconvenient lol. I do need to make a trip this weekend so I'll report back my findings.

BTW I thought that text just meant to keep it from shutting off to save gas, be ready for quick takeoff, etc and not related to whether it turns off after a timer expires. It's auto off PLUS on so I thought it was exclusively describing the gas saving feature and not the safety feature.

wolds

Happy to report positive results this weekend! Since the solution was posted in the other thread I put my results there. (Other thread is linked to above by another user.)