2020 TESLA MODEL X Power Train Problems

My 2020 Tesla Model X experiences severe vibration, shaking, and rattling during acceleration, especially between about 20–45 mph and at higher suspension settings. The vibration is strong enough to affect steering stability and safe control of the vehicle during acceleration and lane changes. Tesla has already replaced the front half-shafts twice under warranty for this same problem, but the issue has returned again. This is a known defect documented by Tesla in Service Bulletin SB-21-39-001, which describes excessive front drive unit half-shaft vibration during acceleration and defines the repair with updated components. The latest revision of this bulletin (R3, dated January 19, 2024) explicitly adds “Customer Pay billing” instructions. Despite this, my local Tesla Service Center in Tempe, AZ (Supervisor: Lewis Holguin) refused to apply the SB-21-39-001 Customer Pay billing and instead charged full retail for the repair. On 11/28/2025, I was billed $1,694.86 out of pocket to replace both...

The contact owns a 2020 Tesla Model X. The contact stated while depressing the accelerator pedal, the vehicle was making an abnormal sound. The contact stated there was a grinding and whining sound coming from the vehicle while driving approximately 30 MPH and the sound was constant. There was no warning light illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the front-end half-shaft needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 46,000.

On December 9th, 2023 my 2020 TESLA Model X accelerator pedal broke off while accelerating up a hill. This caused the vehicle to stop and become undrivable on a blind curve uphill. This caused a significant safety risk to me and other drivers. The vehicle had to be towed with police assistance to block traffic due to where the vehicle became inoperable. I had to pay out of pocket about $500 for the repair plus $450 in towing expenses.

Coolant leak in less then 5 months. Had this same problem in November 2021. Tesla replaced Value no.3. In April 2022 Tesla replaced Value no. 3&4. Very concerned since my warranty is running out soon.

UPON ACCELERATING THE FRONT END BOUNCES AND VIBRATES UNSAFELY. TESLA IS AWARE OF THE FAULTY DANGEROUS DESIGN, YET THEY CONTINUE TO SELL THEIR MODEL X WITHOUT DISCLOSING TO PURCHASER. ADDITIONALLY, THEY REFUSE TO REPAIR THE VEHICLE, INDICATING THAT NEW FRONT HALF AXLES WILL ONLY TEMPORARILY SOLVE THE ISSUE. THE BOUNCE HAPPENS WHEN STARTING FROM A COMPLETE STOP OR OFTEN WHEN ACCELERATING FROM ONE SPEED TO ANOTHER. THE BOUNCE HAS BEEN HAPPENING SINCE APRIL BUT REPEATED REPAIR REQUESTS TO TESLA HAVE BEEN REFUSED.

WHEN PULLING INTO A PARKING SPACE THE VEHICLE UNEXPECTEDLY ACCELERATED CAUSING THE VEHICLE TO JUMP THE PARKING CURB AND STRIKE A RETAINING WALL. I HAVE THE VIDEO FROM THE CAR. WHILE TURNING RIGHT INTO AN AVAILABLE PARKING SPOT, I WAS ABOUT 80% INTO THE SPOT WHEN THE VEHICLE SURGED.