While using the full self driving mode (fsd) the vehicle will randomly and without warning slam on the brakes at highway speeds and decelerate to 30-50mph on an active highway. If the highway is multilane, the car will slow and attempt to change lanes. It appears the vehicle thinks that something is in the road, even if the road is clear. This happens multiple times on my longer road trips, and is very concerning. It did this yesterday with a semi-truck closely behind me. The vehicle has gone into service and i did bring up the issue, but the service team was unable to assist on this issue (screenshots attached). The software currently installed in my vehicle is 2024. 3. 15, the latest available from tesla. This issues has been ongoing from every software update i have had in the car however.
| VIN Pattern | 5YJ3E1EB*MF****** |
| Manufacturer | TESLA, INC. |
| Make | TESLA |
| Model | Model 3 |
| Model Year | 2021 |
| Body Class | Sedan/Saloon |
| Vehicle Type | PASSENGER CAR |
| Other Engine Info | Dual Motor – Standard |
| Primary Fuel Type | Electric |
| Electrification Level | BEV (Battery Electric Vehicle) |
| Transmission Style | Automatic |
| Electronic Stability Control | Standard |
| Traction Control | Standard |
| Blind Spot Monitoring System | Standard |
| Rear Visibility System | Standard |
| Rear Cross Traffic Alert | Standard |
| Daytime Running Light | Standard |
| Tire Pressure Monitoring System (TPMS) | Direct |
| Keyless Ignition | Standard |
| Auto Reverse System | Standard |
| Front Air Bags | 1st Row (Driver and Passenger) |
| Knee Air Bags | 1st Row (Driver and Passenger) |
| Side Air Bag | 1st Row (Driver and Passenger) |
| Seat Belts | Manual |
| Other Restraint System Info | Type 2 manual seatbelts (FR, SR*3) with front airbags, PODS, side inflatable restraints, knee airbags (FR) |
| Lower Beam Headlamp Light Source | LED |
| Plant City | FREMONT |
| Plant State | CALIFORNIA |
| Plant Country | UNITED STATES (USA) |