Hi,
Volvo did the software update to version 2.5 and so far the problem did not repeat. Apparently the TCAM battery (network) draining issue is due to background software running excessively. When the TCAM battery is drained, then it draws power from car battery which eventually causes the car totally dead.

 

in overall the customer service side was pathetic, the technical adviser was more transparent and managed to provide better assurance to resolve my matter.

 

That is very interesting as my dead-car event happened ‘after’ the car was updated to v2.5.

My dead-car event resulted in the TCAM battery being drained as well as the 12v battery. The 12v battery was replaced, the TCAM battery recharged and extensive tests run, with no cause found.

So, the v2.5 update may not be the final fix after all or maybe some other system component/unit in the car needs an update too?

 

Thank you , got it.

Ours is apparently exactly this issue , just being fixed and tested (batteries plus software patch) Dealer says our chassis wasn't included in a recall !

 

Hi John

I would be very interested to know exactly what (Software Patch?) was applied to your car by the dealer.

(I also posted this question on the other ‘dead car’ thread)

 

It sounds scary to me now, however I did notice there is a reduced battery function notification appeared at the dashboard display recently, don't remember I have seen it before the software update. Will be careful to monitor its performance again.
​​

 

I too would love to know the specific software patch applied... thanks

 

Generally we refer to the software version only, I guess... I have just noticed there's a V2.6 available

 

Hi,

Same issue has happened with me two times. I bought XC60 hybrid 2022 model.
Once when care was 1 week old, and once few days back when its 1 year old and car running on v2.6 because it got serviced 2 weeks back only.

This time I asked for detail investigation and they came back saying they cant find any fault in the car.

Any way to escalate this issue?
Regards,
Aman

 

I have a Volvo XC60 2022 mild hybrid. If i park the vehicle for a few days (4 days) the battery completely dies leaving me to jump start the vehicle. Does anyone across the world have this problem and how do I solve for it. My job does require me to travel.

My earlier car was a Volvo S60 which started even after being parked for 3 months during the Covid times. This is weird and no dealer is willing to help out. India Volvo does not seem to give me any answers

 

It’s the same story all over the world at this point.. the main advice given by Volvo is to drive the vehicle at least 15 minutes per week (or day). Most recently I was told if I don’t drive the car very often, I should use a battery maintainer for the 12V. And when locking the car, only press the lock button once(!) otherwise the car “tries to communicate” and can drain the battery.

Other steps I’ve taken myself — disabled automatic downloads in the system settings and turn off Bluetooth and wireless phone charging plate when not in use.

I’m on v2.5.2 since mid-January and so far have not had a reoccurrence of the battery drain. The longest I’ve let the car sit is 5 days though…

 

That began all my problems. Document document document.....

 

There are many, many, many posts abouts this issue both on this forum as well as the Swedespeed.com forum. Replacing the TCAM unit is supposed to help as is upgrading to more recent versions of the AAOS system.

 

Well, it happened again to our 2023 XC60 mild hybrid. Last battery drain issue was November 2022 (one month after purchase) and supposedly repaired under warranty (TCam replaced, new update installed). In April 2023, the 12 v battery unfortunately drained again after parking the car in the garage for 3 days (locked). This time in order to avoid the turtle mode, I trickled charged it for half a day before starting. Service warning light eventually disappeared after driving the car for a while. Took the car in for a service appointment and was told nothing is wrong. Dealer installed update 2.7, and that was all they could offer. I was basically told to drive the car more of often. I asked the service advisor if I park the car at the airport for 2 weeks, I am sure I will come back to a dead battery. He assured me that it won't happen. I said well it did happen sitting in the garage for 3 days. He just gave me this blank look like nothing can be done. The bottom line is Volvo customer will just have to deal with this battery drain bull**** on our own: 1) Don't drive it to the airport and leave it longer than a few days. 2) Plug it into a trickle charger if you plan to not drive it for a few days/weeks. 3) Lock the door. Good luck everyone! You've been warned!

 

Sorry to hear that this happened again! Huge pain for sure.
Any chance you can tell us the following:

• What software version were you on when this happened?
• Do you have Bluetooth turned on by default? Or the wireless phone charging hot plate?
• Do you use the Volvo App while the car is parked and locked?
• Did you press the "lock" button on the remote or door more than once? (that's a serious question btw)

Just trying to gather some data points that might also help us identify the parasitic drain on the 12V.

 

Software was updated in November 2022 with version 2.5
No Bluetooth or charging hot plate
Car was locked
Lock button pressed once
Automatic update turned off

I have read all the suggested recommendations to "prevent" battery drain from previous posts. The two key fobs are even kept in a Faraday box when not in use. First time it happened, the car wasn't driven for 2 days. Second time was 3 das. My suspicion is Volvo has no solution to this drain problem or else it would have been resolved. Forty plus years of driving different makes, this is the first time encountering such ridiculous problem. Love this car, but will likely never buy another Volve!

 

If you were just upgraded to v2.7, you should be good now — fingers crossed. Best I can tell the problematic versions were 2.3 - 2.5.

Incremental version v2.5.2 has been solid in my case. I do try to drive for at least 15min every 3-4 days. Ridiculous problem nonetheless.

 

Unless there has been some hot of the press information just coming to light, Volvo still doesn’t have a scooby to what is causing this draining issue.

I also think they have known about it a lot longer than they will admit and have even gone so far as to make a ‘get out of jail’ statement in their car manuals:

“To keep the starter battery in good condition, at least 15 minutes of driving a week is recommended, or connecting the battery to a battery charger with automatic trickle charging. A starter battery that is kept fully charged has a maximum service life.”

And believe me, Volvo is using this statement as a weapon in order to relinquish themselves from any warranty responsibility, if you don’t follow this directive – and Volvo HQ can check your compliance through the cars telemetrics database.

Volvo is one slippery snake of a company.

 

Hi Benlim,
Did you experience any occurrence of "dead-car" situation after you updated to AAOS 2.5?

 

A car of 20 years ago would simply have the car alarm system and key fob system running in the background after the car was switched off. Today you have a multitude of systems running in the background when switched off – many of which are really just tech-for-tech sake.

With a mobile phone I can force quit or uninstall apps that drain the battery and if I switch the phone off when not in use, it’s off. These so-called miracles of technology cars need to have a similar capability.

If for example I am parking my car at the airport for a few weeks or I’m not driving it for 15 minutes every day, I should be able to set the car into a ‘deep sleep mode’ with only the car alarm system and key fob system running in the background – nothing else!

Modern cars have become computer IT monstrosities, with more importance being placed on things like being a gaming wifi router hub, than being a reliable transportation vehicle that will start when I need it to.