Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Model S Cold Battery Indication

atmun

New Member
Nov 18, 2020
2
0
New Jersey
Hi folks,
I noticed, at least on my car, the only way to see if the battery is not regenerating is to have the energy graph up on the instrument cluster (I typically do). I took a look at the manual and in Instrument Panel page, it does mention the Snowflake Icon but I've never seen it on my car.

On the 3/Y you get the snowflake icon, and on the phone app and in the charging screen, you can see a reduced range due to the cold battery. Also, there are little pop-up warnings that note regenerative breaking is limited when you start the drive on a cold battery. I was surprised to not see any of this on my 2020 MS LRP. Is this typical or should I be making a service appointment?

I started looking into this because I've recently had some weird battery things happening. One day, regen limiter on the energy graph was flickering in and out (assuming the temp was on teetering on some threshold). And there was a little yellow warning icon that would also flash in and out. Looking at the forums, I guess this is expected when the regen is limited? Weird that I only see that icon the one time. Also, twice, I had restart the car in order for it to even start charging, I think it had to do with cold weather.
 

2101Guy

Active Member
Jan 6, 2020
1,425
1,230
USA
Everything except your last sentence, is normal behavior of the car. It's also not unusual (if you precondition your battery aka warm up your cabin for about 30 minis while the car is plugged in) in really cold weather for the battery pack to cool down some after you start driving/lose some regen. The system will prioritize heating the cabin over keeping the battery pack at a optimal warm temp. EV's quite different from ICE vehicles where the engine remains hot once its hot, regardless of weather.
 

DerbyDave

Member
Jul 2, 2020
605
314
Kentucky
Atmun, my June, 2020 S Long Range Regen doesn not flicker, but the amount of regen changes and goes from normal to 2 bars to 4 bars back to normal, 2 bars, etc., so it may be the same as your flickering. The yellow exclamation also comes and goes. I think all this is normal.
 

atmun

New Member
Nov 18, 2020
2
0
New Jersey
Cool - thanks!
If/when the restart is required again, I'll give roadside a call.

These subtitle UX differences between the S/X and 3/Y are really weird. Especially when they seem like a software thing...
 

Storksb

New Member
May 24, 2020
2
0
Virginia
I have been having similar regen experience on my 2016 S90D. Got an error last week that the car may not restart. It was cold and hasn't subsequently returned. Put a service request in and they remotely pulled the logs and diagnosed that the battery coolant heater is failing. Off to the service center soon.
 

DerbyDave

Member
Jul 2, 2020
605
314
Kentucky
BTW, the exclamation mark only comes on for a short time to notify you there has been a change in the regen, either more or less regen, as indicated by the bar segments. That is why it comes on and then goes off after a short time, coming on again briefly when another change happens.
 
  • Informative
Reactions: outdoors

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top