2021 Tesla Model Y electrical system problems

Updated from NHTSA data · How we count

150 owners have reported electrical system problems with the 2021 Tesla Model Y, 14% of all complaints about this model year. The typical problem appeared around 2,500 mi.

Electrical System complaints
150
Crashes
13
Fires
2
Injuries
11
Related recalls
9
Median mileage
2,500 mi

Specific components reported

Electrical System covers: Battery, wiring, infotainment, instrument cluster, communication and software.

ComponentComplaints
Electrical system127
Electrical system:12v/24v/48v battery11
Electrical system:adas:autonomous/self driving6
Electrical system:adas2
Electrical system:alternator/generator/regulator1
Electrical system:horn1
Electrical system: instrument cluster/panel1
Electrical system:adas:autonomous/self driving:software1
Electrical system:adas:driver monitoring:camera/sensor1

Electrical System complaints across Tesla Model Y years

282020150202112020221212023612024182025562026
Electrical System complaints by model year. The 2021 is highlighted.

Mileage when the problem appeared

22Under 10k310k–30k530k–60k360k–100k100k–150k1150k+
Complaints that list mileage, grouped by odometer reading.

Related recalls

  • Recall 24V554000Jul 24, 20241,849,638 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · LATCHES/LOCKS/LINKAGES:HOOD:LATCH

    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.

    Remedy: 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.

  • Recall 24V153000Feb 27, 20246,557 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT

    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.

    Remedy: 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.

  • Recall 24V051000Jan 30, 20242,193,869 vehicles
    ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

    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.

    Remedy: 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.

  • Recall 23V838000Dec 12, 20232,031,220 vehicles
    ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:SOFTWARE

    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.

    Remedy: 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.

  • Recall 22V317000May 9, 20227 vehicles
    ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR · FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING · LANE DEPARTURE: LANE KEEP: AUTOMATIC STEERING

    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.

    Remedy: 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.

  • Recall 22V235000Apr 12, 2022594,894 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT

    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.

    Remedy: 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.

  • Recall 22V063000Feb 4, 2022578,607 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT

    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.

    Remedy: 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.

  • Recall 22V050000Feb 2, 202226,681 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES

    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.

    Remedy: 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.

  • Recall 22V045000Feb 1, 2022817,143 vehicles
    ELECTRICAL SYSTEM:SOFTWARE · SEAT BELTS:FRONT

    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.

    Remedy: 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 say

  1. Filed Oct 4, 2026PADriver Assistance & Safety TechElectrical System
    COMPONENT: The car computer (Tesla HW3 / "Full Self-Driving Computer 3," which houses the Autopilot computer and GPS) failed during a scheduled overnight over-the-air software update from version XXX in early XXX. The update failed to install, and from that point all cameras were black including the backup camera, navigation was frozen, and every driver-assistance feature was unavailable: Autopilot, FSD, automatic emergency braking, forward collision warning, lane keeping,…
    NHTSA complaint #11768791 · source
  2. Filed Oct 3, 2026MDDriver Assistance & Safety TechElectrical SystemVisibility & Wipers
    On October 1, 2026, immediately after my 2021 Tesla Model Y installed Tesla software update 2026.32.7, the driver-assist computer entered a continuous boot loop. All eight vehicle cameras went black (confirmed in the vehicle's Service Mode), the rear camera displays 'camera temporarily unavailable,' Autosteer will not engage, and the vehicle shows alert UI_a114 for degraded driving visualization. All camera-dependent driver-assist and safety features are inoperative. The…
    NHTSA complaint #11768773 · source
  3. Filed Sep 28, 2026VAElectrical System
    I would like to report a serious safety incident involving Full Self-Driving (Supervised) in a 2021 Tesla Model Y. Vehicle Safety Complaint – Tesla FSD Wrong-Way Entry / Near Head-On Collision Vehicle: 2021 Tesla Model Y VIN: [XXX] Date: XXX Time: Approximately 7:30 PM Location: [XXX] I was leaving a public parking area near the Crystal Gateway Marriott in [XXX], traveling toward [XXX]. Navigation was set to avoid tolls, and Tesla Full Self-Driving (Supervised) was engaged.…
    NHTSA complaint #11767433 · source
  4. Filed Sep 26, 2026CADriver Assistance & Safety TechElectrical System
    Shortly after I purchased and activated Tesla Full Self-Driving (Supervised), my vehicle's driver-assistance system stopped functioning. Autopilot and FSD became unavailable, the vehicle cameras stopped functioning properly, GPS/navigation positioning stopped functioning properly, and the vehicle could no longer communicate normally with the Driver Assistance System (DAS). Service Mode testing showed DAS Ethernet communication failure. I attempted multiple troubleshooting…
    NHTSA complaint #11767070 · source
  5. Filed Sep 15, 2026WADriver Assistance & Safety TechElectrical System
    On or about XXX my Tesla Model Y downloaded FSD version 14 Lite. One day after downloading the software, I used FSD and the new software caused the computer to overheat. This killed the car computer and made FSD, adaptive, cruise control, lane keep assist, reverse camera, and many other functions, including GPS and navigation inoperable. My car’s warranty expired in January of this year and Tesla will not cover the replacement car computer. There are hundreds of other…
    NHTSA complaint #11764580 · source
  6. Filed Aug 29, 2026ORElectrical System
    Rear passenger door is impossible to open. On using the exterior latch, the window retracts partly and the door opens 1/2 inch only. From inside, nothing works and a passenger would be trapped. Please have Tesla fix this - a very known problem, there are youtubes videos complaining about this door problem - always the same door too - so Tesla knows this is a problem.
    NHTSA complaint #11760625 · source
  7. Filed Aug 27, 2026CAElectrical System
    On August 27, 2026, the 12V/low-voltage battery in my Tesla completely failed without any prior low-voltage warning displayed on the screen or sent to the mobile app. After placing my infant/toddler in their car seat in the rear and closing the door, the vehicle's electronic systems shut down entirely. The electronic door handles and key access became completely inoperative from the outside, locking my child inside the vehicle with no way for me to open the doors or retrieve…
    NHTSA complaint #11760101 · source
  8. Filed Aug 17, 2026GADriver Assistance & Safety TechElectrical System
    On XXX, while driving southbound on XXX from [XXX] toward [XXX], my vehicle’s center display (MCU) crashed and rebooted at highway speed, leaving me with no screen for approximately 5–10 minutes. Sequence of events: 1.Earlier in the drive, while using Full Self-Driving (Supervised) v14 Lite, the vehicle exhibited phantom braking and speed oscillation (repeatedly cycling between approximately 73, 70, and 72 mph without cause). I disengaged FSD and switched to standard…
    NHTSA complaint #11757562 · source
  9. Filed Aug 12, 2026WAElectrical System
    On 8/10/26, my Tesla experienced a complete low-voltage electrical failure while parked at my home. I owned the vehicle 34 days and put 1,054 miles on it after purchasing it directly from Tesla as a pre-owned vehicle. I entered the driver's seat, and closed the driver's door. The center touchscreen was completely black, the vehicle would not power on, and the Tesla mobile app could not control the vehicle. I attempted to exit the vehicle, but the electronic driver's-door…
    NHTSA complaint #11756565 · source
  10. Filed Aug 8, 2026GAElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain
    The high-voltage battery failed unexpectedly shortly after the warranty expired (with only 9,000 miles past warranty). Tesla Service confirmed a main high-voltage battery defect and quoted a full battery replacement. A sudden high-voltage battery failure causes a complete loss of propulsion/power, creating a severe collision and safety hazard on public roads. There were no prior warnings until the system suddenly failed and rendered the vehicle inoperable. The vehicle is…
    NHTSA complaint #11755660 · source
  11. Filed Aug 2, 2026CADriver Assistance & Safety TechElectrical SystemOther / Unknown
    On June 7, 2026, my 2021 Tesla Model Y with approximately 37,131 miles became completely unresponsive and could not be driven. Tesla Mobile Service replaced the 12V low-voltage battery on June 11, 2026. The official repair notes stated that the battery was replaced, proper operation was verified, there were no active alerts, and the vehicle was in excellent condition. Shortly after this repair, multiple vehicle systems stopped functioning, including all cameras,…
    NHTSA complaint #11754296 · source
  12. Filed Jul 31, 2026CABody & StructureElectrical System
    My 2021 Tesla Model Y (VIN: [XXX]) experienced a serious safety malfunction during a 12V low‑voltage failure. When the vehicle displayed the 12V alert, it became non‑functional. Upon entering, no systems were operating. When I pressed the brake pedal, the interior lights flashed and both front windows began moving up and down automatically without any input. This uncommanded movement caused both windows to shatter violently inside the cabin. The glass broke along the lower…
    NHTSA complaint #11753908 · source

Other 2021 Tesla Model Y problem areas

Back to all 2021 Tesla Model Y problems →

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology