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]

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
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
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:

Products we're discussing on TMC...

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