2021 Tesla Model 3 Electrical System Problems
Owners have filed 79 complaints with NHTSA about electrical system problems on the 2021 Tesla Model 3, 12% of all complaints for this model year. Half of the reports with a mileage happened before 7,000 miles. The words owners use most often: “software update” (8% of reports).
- 79electrical system complaints
- 7,000median miles at failure
- 7mention a crash
- 4mention an injury
- 10related recalls
- 64%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Software update: mentioned in 6 of 79 complaints (8%)
- Service center: mentioned in 6 of 79 complaints (8%)
- High voltage: mentioned in 5 of 79 complaints (6%)
- Phantom braking: mentioned in 5 of 79 complaints (6%)
At what mileage do electrical system problems happen?
Based on 17 complaints that reported the odometer reading.
How serious are the reports?
Of 79 complaints, 7 mention a crash, 1 a fire, 4 an injury.
Tesla Model 3 electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Model 3 | 2 | 7% | 9,999 |
| 2025 Model 3 | 20 | 17% | 11,200 |
| 2024 Model 3 | 45 | 20% | 9,611 |
| 2023 Model 3 | 51 | 12% | 5,300 |
| 2022 Model 3 | 60 | 8% | 31,945 |
| 2021 Model 3 | 79 | 12% | 7,000 |
| 2020 Model 3 | 42 | 9% | 14,000 |
| 2019 Model 3 | 91 | 15% | 14,419 |
| 2018 Model 3 | 168 | 16% | 26,250 |
| 2017 Model 3 | 2 | 8% | — |
When owners reported it
Related recalls (10)
Electrical system:software; latches/locks/linkages:hood:latch
Problem: Tesla, Inc. (Tesla) is recalling certain 2021-2024 Model 3, Model S, Model X, and 2020-2024 Model Y vehicles. The hood latch assembly may fail to detect an unlatched hood condition after the hood has been opened.
Risk: An unlatched hood can fully open, obstructing the driver's view and increasing the risk of a crash.
Fix: Tesla has released an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed September 24, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-012.
Forward collision avoidance: warnings:external/pedestrian alert; electrical system:software
Problem: Tesla, Inc. (Tesla) is recalling certain 2013, 2018-2021 Model S, 2020-2021 Model X, 2018-2022 Model 3, and 2020-2022 Model Y vehicles. A factory reset muted the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."
Risk: Pedestrians may be unaware of an approaching vehicle if the PWS sounds are muted, increasing the risk of a crash.
Fix: Tesla released an over-the-air (OTA) software update, release 2023.44.30.14, free of charge. Owner notification letters were mailed April 27, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-006.
Electrical system: instrument cluster/panel
Problem: Tesla, Inc. (Tesla) is recalling certain 2012-2023 Model S, 2016-2024 Model X, 2017-2023 Model 3, 2019-2024 Model Y, and 2024 Cybertruck vehicles. An incorrect font size is displayed on the instrument panel for the Brake, Park, and Antilock Brake System (ABS) warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 105, "Hydraulic and Electric Brake Systems" and 135, "Light Vehicle Brake Systems."
Risk: Warning lights with a smaller font size can make critical safety information on the instrument panel difficult to read, increasing the risk of a crash.
Fix: Tesla began releasing an over-the-air (OTA) software update, free of charge. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-24-00-003.
Electrical system:adas:driver monitoring:software
Problem: Tesla, Inc. (Tesla) is recalling 2012-2023 Model S, 2016-2023 Model X, 2017-2023 Model 3, and 2020-2023 Model Y vehicles equipped with all versions of Autosteer leading up to the version(s) that contains the recall remedy. In certain circumstances when Autosteer is engaged, the prominence and scope of the feature's controls may not be sufficient to prevent driver misuse of the SAE Level 2 advanced driver-assistance feature.
Risk: In certain circumstances when Autosteer is engaged, and the driver does not maintain responsibility for vehicle operation and is unprepared to intervene as necessary or fails to recognize when Autosteer is canceled or not engaged, there may be an increased risk of a crash.
Fix: Tesla will release an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed February 10, 2024. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-23-00-008.
Forward collision avoidance: automatic emergency braking; electrical system:adas:driver monitoring:camera/sensor; lane departure: lane keep: automatic steering
Problem: Tesla, Inc. (Tesla) is recalling certain 2020-2021 Model 3 and 2021 Model Y vehicles. The fisheye and narrow camera cable terminals were incorrectly installed in the cable harness connector, resulting in swapped camera views.
Risk: Swapped camera views can prevent the vehicle's cameras from detecting crossing objects and high-curvature lane lines, impairing the Autosteer and Automatic Emergency Braking (AEB) performance, and increasing the risk of a crash.
Fix: Tesla Service will correct the swapped terminals and recalibrate the cameras, free of charge. Owner notification letters were mailed July 8, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-17-007.
Electrical system: instrument cluster/panel
Problem: Tesla, Inc. (Tesla) is recalling certain 2018-2022 Model 3 Performance vehicles. The unit of speed (mph or km/h) may fail to display on the speedometer while in Track Mode. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Control and Displays."
Risk: The driver may not know how fast the vehicle is traveling without the mph or km/h unit display, increasing the risk of a crash.
Fix: Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed June 17, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-008.
Electrical system:software; forward collision avoidance: warnings:external/pedestrian alert
Problem: Tesla, Inc. (Tesla) is recalling certain 2020-2022 Model Y, Model X, Model S, and 2017-2022 Model 3 vehicles. The Boombox function allows sounds to be played through an external speaker while the vehicle is in motion, which may obscure the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."
Risk: Pedestrians may be unaware of an approaching vehicle if the PWS sounds are obscured, increasing the risk of a crash.
Fix: Tesla will perform an over-the-air (OTA) software update that will disable the Boombox functionality when the vehicle is in Drive, Neutral and Reverse modes, including Summon and Smart Summon, free of charge. Owner notification letters were mailed June 6, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-003. Note: This recall supersedes recall 22V-063. Vehicles configured with Summon or Smart Summon and already remedied under 22V-063 will need to have the new remedy software installed.
Forward collision avoidance: warnings:external/pedestrian alert; electrical system:software
Problem: Tesla, Inc. (Tesla) is recalling certain 2020-2022 Model S, Model X, Model Y, and 2017-2022 Model 3 vehicles. The Boombox function allows sounds to be played through an external speaker while the vehicle is in motion, which may obscure the Pedestrian Warning System (PWS) sounds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 141, "Minimum Sound Requirements for Hybrid and Electric Vehicles."
Risk: Pedestrians may be unaware of an approaching vehicle if the PWS sounds are obscured, increasing the risk of a crash.
Fix: Tesla will perform an over-the-air (OTA) software update that will disable the Boombox functionality when the vehicle is in Drive, Neutral and Reverse modes, free of charge. Owner notification letters are expected to be mailed April 5, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-003. Note: This recall has been superseded by Recall 22V-235. Tesla's number for the new recall is SB-22-00-003.
Electrical system:software; visibility:defroster/defogger/hvac system:air handler/chamber, ducts, and valves
Problem: Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model 3, Model S, Model X, and 2020-2022 Model Y vehicles. A software error may cause a valve in the heat pump to open unintentionally and trap the refrigerant inside the evaporator, resulting in decreased defrosting performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 103, "Windshield Defrosting and Defogging Systems."
Risk: Decreased defrosting performance may reduce the driver's visibility, increasing the risk of a crash.
Fix: Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed April 1, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-18-002.
Seat belts:front; electrical system:software
Problem: Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The audible chime may not activate when the vehicle starts and the driver has not buckled their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk: The driver may be unaware that their seat belt is not fastened, increasing the risk of injury during a crash.
Fix: Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed April 1, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-22-00-002.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
High Voltage battery BMS error.
After a Tesla-delivered over-the-air software update, my 2021 Tesla Model 3 equipped with Hardware 3 experienced loss of the rear-view camera along with other camera and Autopilot-related functions. The exact date the condition first appeared is unknown, but it occurred after the software update…
As we were normally driving, the car lost power immediately with no warning sign. After the power is lost, brake does not function, electrical door button doesn't function, hazard light doesn't function. Car was able to scroll to a complete stop to the side of the road. The steering wheel is…
Frequently asked questions
Do all 2021 Tesla Model 3s have electrical system problems?
No. NHTSA has 79 owner complaints about electrical system for the 2021 Tesla Model 3 (12% of the 669 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2021 Tesla Model 3 electrical system?
Yes: 10 safety recalls list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do electrical system problems start?
The median reported mileage is 7,000 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2021 Tesla Model 3?
The most frequent phrase is “software update”, in 6 of 79 complaints, followed by “service center” (6).
Other 2021 Tesla Model 3 problems
See all 2021 Tesla Model 3 problems or electrical system problems across all Model 3 years.