Driving up hill -strange sound from the bottom

[Odenor]

Hi, I have a car for 25 days now. Very happy and car is working very well. But when I drive out from my garage ... need to go up hill for 2 floors ( quite steep) I faced the sound like almost touched the bottom ... But checked yesterday with my friend from outside... no problems with clearance ... but sound ! I start to suspect if "antiback" brakes activated or so? But I hold "gas pedal" all the time to go up... and still strange "scratchy" sound coming from the bottom somewhere.
I rfecorded sound on video... may be somebody can advice or reccomend to disengage somehow "antiback break" to test , if this is a reason. I cannot reproduce same in any other location, just my garage only.
I put link with sound below

Get Sky

 

[Leafdriver333]

pebble in the brake?

 

[Odenor]

If pebble will be in the brakes it will be notiseble in all conditions, I guess. But no any sound when I used the brakes... Yesterday I simulated full turns right and left but on flat surface and without any sound . The sound appear only when I am driving UP HILL 2 floors from garage. No sound when I am going down into garage. ONLY when I drive UP HILL( quite steep)
Today morning I delivered my car to Tesla workshop in Oslo. Got loaner Model S ... arrived to the office and no problems with similar sound at all. Let see what Tesla will discover , if any...

 

[Odenor]

just to update.Service man went with me to my garage and admitted the issue.Noticed when drive little bit faster (10 km/h) no any sound.When slower than 8 km/h going the sound.... No conclusion.Checked in workshop and created the case to Tesla.Can roll back brake on the age of activation?So far no other issues.Happy with the car.

 

[BrandX]

Please let us know what happens. I have a very steep driveway too. My car is to be delivered next week.

 

[Odenor]

Please let us know what happens. I have a very steep driveway too. My car is to be delivered next week.

No any news... I just use little bit more speed .. over 8 kmh and no any sound. Also was driving last weekend around Norway with big mountain roads and no any issues.... just drive the speed over 8 kmh … Actually this is slow... no problems so far.