Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
  • Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
  • The final cut of TMC Podcast #29 is available now with topics time-stamped. We discussed the Tesla Cybertruck's expected 1 MW Ultra-Fast Charging capability, the Tesla Semi Delivery Event, the coming Model 3 refresh (project "Highland"), and more. You can watch it now on YouTube.

HPWC connects/disconnects every few minutes

I had the same problem with my 2020 Model X LR and Gen 3 HPWC. I determined that the issue is with the HPWC. I called Tesla (510-249-2490 option 2) and they pushed out a firmware upgrade for the HPWC, which has addressed the issue.

I have also noticed that in cold weather the car charges more reliably if I turn on the heater (which heats the battery) before charging.
  • Like
Reactions: FlatSix911


New Member
Jul 23, 2021
I'm having a similar issue w/ my S. Seemingly connects/disconnects about every 5-15 minutes all day long. This does not seem to have begun w/ .48 but could have and I didn't notice it. It seems to have started more recently.

2015 P85D / 2020.48.37.1 / Original 72a HPWC.
Have you solved that problem on your P85D? If not: Is the car quiet without the HPWC? Could you measure the time more precisely and note the settings (Energy Saving, Always connected, Cabin Overheat Protection) and third party apps. You also need to move the key fob away from the car (or turn of Passive Entry).

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.