10 Tesla diagnostic codes on file — with the full diagnosis, repair steps, and field insights open to read free, no signup required.
Disclaimer: General reference information for trained, qualified technicians only. Codes and procedures vary by model, serial number and software version. Always follow the manufacturer's service manual and your site's safety procedures. Use at your own risk. Not affiliated with or endorsed by any manufacturer.
Find a Tesla code by searching below, or browse the table. Codes on file by system:
| Code | System | Symptom | Full fix |
|---|---|---|---|
| BMS_a063 | HV Battery | Maximum Charge Level Reduced. | View fix |
| BMS_a174 | High Voltage | Loss of Power / "Pull Over Safely" | View fix |
| BMS_u029 | — | Reduced Range. | View fix |
| CC_a002 | — | Unable to Charge. | View fix |
| DIR_a165 | Drive Unit | Power Reduced / "Turtle" Mode. | View fix |
| EPAS_a072 | Steering | Steer-by-Wire Failure. | View fix |
| P0C11 | Electric Drive | Limp Mode / Power Reduced. Car feels sluggish; cooling fan runs at max speed. | View fix |
| TAS_a014 | Suspension | Max Speed 70 mph / Low Ride. | View fix |
| VCFRONT_a192 | Low Voltage | 12V/48V Accessories Dead. | View fix |
| VCFRONT_a447 | Electrical | 12V/48V Power Reduced | View fix |
Same codes keep coming back?
That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.
AM Fleet Integrity gives you QR-code operator reporting, preventive maintenance scheduling, and predictive alerts in one place. Start your 14-day free trial — no credit card required.
Start your free trial