Phantom drain 11-17% a day

[salsagev]

Losing 11-17% power a day on my dual motor CT. I have tried everything I know of to reduce that back to normal of 1-2% a day which I used to get.

Drainage started about a
Month ago which I blamed my wife lol. But then once I found the park energy readings I saw it was losing energy like crazy and started documenting it.

No overheat protection
No sentry mode
Low power mode
Summon Standby is off
Nothing plugged into usb’s
Even WiFi and data sharing off.

The other day after trouble shooting this I started to get PCS2_a028_CoolantTempTooHigh code while AC charging the truck in my enclosed attached garage. (Of note- it is 105 degrees outside).

I can’t find anything else but this phantom drain is killing my buzz here. Tesla wants $245 to troubleshoot it but I’m pretty damn sure it’s something that’s covered under warranty. (Only 22k on a 22 month old vehicle).

any suggestions on what else I could check on my side?

Also what is the difference between putting your car in low power mode and letting it go to sleep versus choosing the power down option (Tesla tech said to put the he seatbelt into the belt latch and manually flip the door lock mechanism to trick it as if you were still in truck). Would power down not let it randomly wake up or stay awake if it is a PCS issue?

Sponsored

 

[Travis64]

Manually power the truck off in settings then walk away let it lock force close the app and turn off Bluetooth.
Or try a hard reset holding the 2 buttons and brake

 

[NX-01Cybertruck]

When did this drain start? Do you have summon stand by disabled?

 

[CyberGus]

Would power down not let it randomly wake up or stay awake if it is a PCS issue?

The "Power Off" shuts down everything, including the computers. It takes a minute, you can still hear pumps running etc. until it finishes. But, you can't leave it that way: touching anything will wake it up, including exiting the vehicle. It's a soft reboot. (This is separate from the "two thumb salute" that reboots the infotainment.)

If you really, really want to cold-start it, then you need to disconnect the MV battery for a few minutes.

https://service.tesla.com/docs/Cybe...UID-A399E8AE-5DCF-4095-91FA-AF0148503F3B.html

I’ve done it myself before, not too hard.

P.S. Tesla always quotes the cost of service, including diagnostics, in case the problem is not warranty-related. It should be covered, and therefore not charged.

 

[Mini2nut]

Vampire drain was one of the reasons I sold my R1T after 2-years. I would lose 8-12 miles a day and numerous service department visits were futile.

I set my SAWD to “Low Power Mode“ and it suffers virtually zero vampire drain in a 24 hour period.

 

[salsagev]

When did this drain start? Do you have summon stand by disabled?

Summon standby is off.

This has been happening for about a month I figure.
At first I thought it was my wife just being a crazy driver but once I started looking at the energy readings under the park , I noticed the vehicle standby loss was extremely large and started documenting it.

I thought maybe the Vegas temperatures might be affecting it also but it’s always garaged. I used to only lose 1 to 2% a day over 24 hours. Not it’s the 11-17 % since I started tracking. Even sentry mode with tons of recordings doesn’t use that much over 24 hours.

Manually power the truck off in settings then walk away let it lock force close the app and turn off Bluetooth.
Or try a hard reset holding the 2 buttons and brake

tried the two button reset. No difference on loss. Going to try a power down for 12 hours tonight to see if that makes any difference

 

[NX-01Cybertruck]

Summon standby is off.

This has been happening for about a month I figure.
At first I thought it was my wife just being a crazy driver but once I started looking at the energy readings under the park , I noticed the vehicle standby loss was extremely large and started documenting it.

I thought maybe the Vegas temperatures might be affecting it also but it’s always garaged. I used to only lose 1 to 2% a day over 24 hours. Not it’s the 11-17 % since I started tracking. Even sentry mode with tons of recordings doesn’t use that much over 24 hours.

tried the two button reset. No difference on loss. Going to try a power down for 12 hours tonight to see if that makes any difference

Is this setting off?

 

[UberNoob]

Summon standby is off.

This has been happening for about a month I figure.
At first I thought it was my wife just being a crazy driver but once I started looking at the energy readings under the park , I noticed the vehicle standby loss was extremely large and started documenting it.

I thought maybe the Vegas temperatures might be affecting it also but it’s always garaged. I used to only lose 1 to 2% a day over 24 hours. Not it’s the 11-17 % since I started tracking. Even sentry mode with tons of recordings doesn’t use that much over 24 hours.

tried the two button reset. No difference on loss. Going to try a power down for 12 hours tonight to see if that makes any difference

When you try that power down, have your wife press the door open button and verify you can still get back inside the vehicle. Would hate to get locked out and need a tow. If the issues (part) is covered under warranty, they will waive that diagnostic fee. If they are unable to replicate it, you will be stuck with the bill.

 

[CyberGus]

Going to try a power down for 12 hours tonight to see if that makes any difference

While disconnecting the MV battery is generally safe, there is always a non-zero probability that the vehicle will not recover when power is reconnected.

Even though this is very unlikely, do the following to make it less painful:

• Leave the frunk open, so that a jump-start can be attempted if needed
• Unplug the NACS port, since it will be difficult to extract the charge cable without power
• Leave a door or window open to allow entry

12 hours is probably overkill, but I admire your tenacity lol.

Good luck.


P.S. There's a memory flickering in the back of my addled brain about power drain being caused by a faulty software update that's stuck in a loop. If the poweroff doesn't resolve the issue, Tesla might be able to remotely restart the update.

 

[salsagev]

Is this setting off?

Yup power outlets are turned off. Even turn on low power mode to ensure nothing is a stray drain.

 

[devdrone6]

Here I am worrying about 1-2% drain.

You need to get that checked out and it will be covered under warranty I am sure. If it’s draining that much, its like losing 30 miles a night.

Sponsored