[Fedet76]

Hi everyone, after a service in july and a software update (I think....) , the start/stop function of my xc40 has stopped working!
Before that, everything was perfect!
In sensus system the function is enable, but on display the light indicates that it is disabled. In both cases the start/stop never works.
The technical assistance doesn't know what it can be.... has anyone had such an experience?

thank you
Federico

 

[Jezza]

You aren’t in Dynamic drive mode are you? That automatically disables start/stop.

 

[Fedet76]

You aren’t in Dynamic drive mode are you? That automatically disables start/stop.

No, both in comfort and in echo mode the same thing happens.

 

[EdDeeXC]

I took my XC40 in for this same issue. They said its a known issue since the last major software upgrade. There is no time frame on when it will be fixed.
The only time this function now works is when I'm in stop and go traffic on the highway.

 

[bdalameda]

The stop start function uses a separate battery to start the engine. If the charge level on this battery is too low the function will cease to function. Usually a long drive will charge the battery and it will begin working again. There have been some cases where the start/ stop batteries were defective and were replaced under warranty.

Dan

 

[hezzer]

Hi everyone, after a service in july and a software update (I think....) , the start/stop function of my xc40 has stopped working!
Before that, everything was perfect!
In sensus system the function is enable, but on display the light indicates that it is disabled. In both cases the start/stop never works.
The technical assistance doesn't know what it can be.... has anyone had such an experience?

thank you
Federico

Hello Federico
I had the same problem (2019 car) and mentioned it when the car was in for its first year service. I hadn't worried about it before as I prefer the system not to work anyway and switch it off when I remember. The dealer response was to say that I do too many short journeys and they ran a check on both batteries. The main battery failed some check or other and needed a replacement battery from Sweden - on warranty fortunately as very expensive. The stop/start is now rather unpredictable but as there are so many criteria for it to work, I've given up worrying about it. The software update, which was done at the one year service, seemed to make no difference to me.
cheers
H

 

[Fedet76]

I took my XC40 in for this same issue. They said its a known issue since the last major software upgrade. There is no time frame on when it will be fixed.
The only time this function now works is when I'm in stop and go traffic on the highway.
View attachment 497

Thank you very much! I hope they will solve in a short time!

 

[Fedet76]

The stop start function uses a separate battery to start the engine. If the charge level on this battery is too low the function will cease to function. Usually a long drive will charge the battery and it will begin working again. There have been some cases where the start/ stop batteries were defective and were replaced under warranty.

Dan

Thank Dan. My car is out of warranty.
i will ask volvo to check the battery as well...

 

[EdDeeXC]

Thank you very much! I hope they will solve in a short time!

The service center said something about the middle of next month and it will be in the form of a recall notice.

 

[Szeb]

Took me a little over a month to get used to it but now i dont notice it and sometimes when i do stop at a light and my engine doesn't turn off it feels weird to me.

plus i like it because i blare my music and i like when im at a light and my engine shuts off the music will also turn down quite a bit so i'm not that person at the stop light blaring music lol

 

[CarPhan]

The stop/start feature is just awful... no matter what car is driven. This is "greening" going too far. The amount of fuel saved is barely calculatable.

This is a must-read about start-stop technology:

Quick Question: Do You Hate Start-Stop Technology On Cars?

Recently, in our holographic meeting room high atop the Jalopnik Spire, as I sat discussing important Jalopnik issues with the other shimmering, flickering holograms around me, I came to two startling realizations: a good number of my beloved co-workers harbor an intense dislike for start-stop...

jalopnik.com

 

[realtorrichard]

I have the same issue. Worked, then stopped working. Thanks for the heads up.

The service center said something about the middle of next month and it will be in the form of a recall notice.

 

[MJH]

The stop start function uses a separate battery to start the engine. If the charge level on this battery is too low the function will cease to function. Usually a long drive will charge the battery and it will begin working again. There have been some cases where the start/ stop batteries were defective and were replaced under warranty.

Dan

Thanks for this... I am having the same issue. It has only ever worked once and that was after a reasonably long drive on the highway. Perhaps my batteries need to be reviewed also - my car is still under warranty so I better get in quick to check it out.

 

[Keneknowles]

Hi everyone, after a service in july and a software update (I think....) , the start/stop function of my xc40 has stopped working!
Before that, everything was perfect!
In sensus system the function is enable, but on display the light indicates that it is disabled. In both cases the start/stop never works.
The technical assistance doesn't know what it can be.... has anyone had such an experience?

thank you
Federico

The issue is the battery does not have enough voltage to do the restart. Volvo replaced my battery under warranty and start stop works

 

[riotboy]

Same issue here. Dealer tried to tell me that's how it is supposed to function. It was functioning as it should for 9 months, then after an upgrade it wasn't. Had it in again and they performed another software update which fixed the issue (even though when I picked it up that day they said there was not an issue) and of course it's working as it is designed to again.

 

[realtorrichard]

I took my XC40 in for this same issue. They said its a known issue since the last major software upgrade. There is no time frame on when it will be fixed.
The only time this function now works is when I'm in stop and go traffic on the highway.
View attachment 497

The start/stop function has worked about 2 mos. out of the 24 mos. I have owned my XC40. I just had my 2 year service and asked the dealer to "fix" the start/stop. Apparently they did a software tweak and test drove it, but I still have no start/stop function no matter how I set the driving modes with the start/stop box on Settings checked. I give up. It really bothers me to have a feature of this car broken from new.

 

[riocoles]

Hi everyone
Have a XC40 T5 for 12months and my start/stop only works when I have some battery from the hybrid pack!
Only noticed it for the past 3 months, because I had maintenance on our building garage and have the charger doesn't work, so I have been mostly on gas power since then.

It seams odd for a cleaner car to loose the start/stop feature, relying on the big battery to be charged.
Is this the same that is happening to you guys?

PS:without battery the millage is terrible, like 9.5L/100km!

 

[NPI]

Hi everyone, after a service in july and a software update (I think....) , the start/stop function of my xc40 has stopped working!
Before that, everything was perfect!
In sensus system the function is enable, but on display the light indicates that it is disabled. In both cases the start/stop never works.
The technical assistance doesn't know what it can be.... has anyone had such an experience?

thank you
Federico

Same issue. Start/stop worked well for one year and now, it doesn’t work properly anymore for about two years. Dealer says it’s due to driving small amount of km. Car is 3 years old and 26000km.
Even after long trips of more than 300 km, it’s working once and then not working again.
Any clues on what might be happening?
Thanks!

 

[realtorrichard]

Be sure that you have no accessories that might draw current. I had an amp that was interfering with the start/stop. Even a small draw can foul it up.

 

[NPI]

Be sure that you have no accessories that might draw current. I had an amp that was interfering with the start/stop. Even a small draw can foul it up.

Thanks for the tip. The only thing I keep plugged is the usb cable to be able to use the iPhone with apple play and a usb stick to play
Music. But this should be marginal drain, I guess. Nonetheless I will remove them while the car is not working to see if anything changes. I would assume this should affect the main battery and not the auxiliary one. In the past I got a similar warning on another car for using a usb charger that could also mess with the battery and I stopped using it.
Thanks for your tip. 😊