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

Is this sound normal? [Update: yes, it’s normal]

z06tim

Member
Sep 10, 2019
95
69
Maryland
Curious if you guys get this sound or have heard it before. Sometimes when getting in my car I get this fairly loud double click type sound. I have linked 2 videos that have the sound in it below. Let me know what you think. Thanks!


 

gcardona

Member
Jun 16, 2019
31
47
Richardson, TX
I hear it too. It seems to happen only when the car wakes up, and it seems to come from the rear drivetrain/wheel area. Maybe something to do with the parking brake preparing to dis-engage?
 
  • Like
Reactions: z06tim

jkdman123

Member
Jul 15, 2019
350
231
San Diego
When my car wakes up there’s a double thunk. Hard to say if it’s louder or quieter than yours though. It is certainly noticeable in the quiet garage.

My last car used to always make a low rumble, a metallic squink, and a galonck every time I got in. Used to drive me nuts. Yada, yada, yada, I got a Tesla.
 
Last edited:
  • Like
Reactions: z06tim

acarney

Active Member
Jul 9, 2019
2,614
1,634
Richland, WA
Ya, I have a pretty “heavy” sounding double clunk sound too. I’ll have it occasionally when the car is asleep and I just adjust the charge limit from my phone. I hear a click at the plug (NEMA 14-50) or Tesla mobile adapter and a large clunk somewhere from the rear of the car...
 
  • Like
Reactions: z06tim

mike123abc

Member
Aug 20, 2018
406
808
Norman, OK
It is the relay connecting the battery pack to the car. The main battery is disconnected while the car is asleep. It runs on the 12v lead acid battery. When you wake up the car it connects the main battery pack, that is the noise you hear from the rear of the car.

It also will connect the main battery from time to time when it is asleep to recharge the 12v battery if needed.
 
  • Informative
Reactions: z06tim and Electrph

Electrph

Member
Aug 29, 2019
426
281
Central California
It is the relay connecting the battery pack to the car. The main battery is disconnected while the car is asleep. It runs on the 12v lead acid battery. When you wake up the car it connects the main battery pack, that is the noise you hear from the rear of the car.

It also will connect the main battery from time to time when it is asleep to recharge the 12v battery if needed.
From the sound i am hearing with mine in person i would say it is most likely this ... it sounds to me as a heavy circuit engaging or disengaging
Or for someone who has not heard this electrical sound before as if a large deadbolt is engaging or disengaging
Or the Law and Order sound slowed down a lil ;)
 
Last edited:

RC2785

Member
Dec 27, 2018
260
178
Chicago
yep, got my car back in December, I hear that sound regularly. In the summer when its really hot outside you will also hear the ac making a buzzing sound from the outside, that is also normal.
 
  • Like
Reactions: z06tim

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