2018 Tesla Model 3 electrical system problems

Related recalls

• 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 22V263000Apr 18, 202248,184 vehicles
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  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.

  Remedy: 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.

• 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 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.

• Recall 21V00D000Dec 21, 2021356,309 vehicles
  BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK · VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR

  Tesla, Inc. (Tesla) is recalling all 2017-2020 Model 3 vehicles. The rearview camera cable harness may be damaged by the opening and closing of the trunk lid, preventing the rearview camera image from displaying.

  Risk: A rearview camera that does not function reduces the driver's rear view, increasing the risk of a crash.

  Remedy: Tesla Service will inspect and install a guide protector and new cable harness as necessary, free of charge. Owner notification letters were mailed April 24, 2022. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-21-17-008.

What owners say

1. Filed Sep 6, 2026ALElectrical SystemAcceleration & Cruise ControlTransmission & Drivetrain

   While my wife was driving, the high-voltage battery failed and the car went into reduced power/limp mode. Tesla later determined that coolant had gotten into the high-voltage battery and caused it to fail. My main concern is that we had no warning that there was a coolant leak or that coolant was getting into the battery. There was no low-coolant warning or anything telling my wife that there was a serious problem developing. By the time the car started giving high-voltage…

   NHTSA complaint #11762441 · source
2. Filed Jul 26, 2026CAAirbagsElectrical SystemSeats & Seat Belts

   Component/system: The front passenger Occupant Classification System (OCS) in my 2018 Tesla Model 3. The vehicle is available for inspection on request. Description of the failure: The vehicle intermittently displays "Front passenger safety restraint system fault — service required]" on the center touchscreen. The alert first appeared on or about 4 years ago and has recurred approximately ~50 times since. The failure is strongly correlated with cabin temperature. It appears…

   NHTSA complaint #11752890 · source
3. Filed Jul 13, 2026FLAirbagsElectrical SystemOther / Unknown

   Vehicle displayed a “Safety Restraint System Issue - Service Required” alert (fault codes RCM_a056 and RCM_a032). Tesla diagnosed an open circuit between the driver-side curtain airbag and the left airbag controller, requiring replacement of the left body harness. Tesla quoted approximately $1,800–$2,200 for the out-of-warranty repair. This is a known, recurring pattern — multiple other 2018 Tesla Model 3 owners report experiencing this identical fault at nearly the same…

   NHTSA complaint #11750017 · source
4. Filed Jun 11, 2026GAElectrical SystemEngineOther / Unknown

   High voltage fast charge contactors experienced partial weld failure (BMS_a167_SW_FC_Partial_Weld) during routine Supercharging, causing complete HV system shutdown (hvState = HV_DOWN). Vehicle also threw BMS_a085/a086 Pack and Fast Charge Contactor Mismatch codes. Tesla service is refusing to cover repair under the 8-Year HV Battery Warranty, claiming fast charge contactors are not a warranted component despite being integrated into the HV battery assembly. Vehicle has been…

   NHTSA complaint #11743421 · source
5. Filed May 29, 2026TNDriver Assistance & Safety TechElectrical System

   It showed message that emergency brakes not available. It was related to wire hardness inside the trunk lid. I had to get it replaced. Tesla did not cover it.

   NHTSA complaint #11740870 · source
6. Filed Apr 10, 202695,000 miCAElectrical SystemSeats & Seat Belts

   The contact owns a 2018 Tesla Model 3. The contact stated that while opening the doors of the vehicle, the driver's side seat back unintendedly reclined and pressed down on the rear seat, causing the cushion to become deformed. The contact manually used the seat controls to return the seat to an upright position. There was no warning light illuminated. The contact stated that the failure was intermittent and only occurred while the doors were opened. A Tesla service center…

   NHTSA complaint #11730362 · source
7. Filed Apr 9, 202655,000 miCAElectrical System

   The contact owns a 2018 Tesla Model 3. The contact stated that there was a feature in the vehicle that allowed the front driver’s seat to automatically adjust according to the saved driver's profile. The contact stated that the driver’s seat back and forth movement to adjust to each driver's profile might have caused loose wire connection, resulting in error code: RCM_a021 (Front Left Safety Restraint System Fault) being displayed. The contact stated that the error message…

   NHTSA complaint #11730125 · source
8. Filed Mar 16, 2026CAAirbagsElectrical SystemSeats & Seat Belts

   Error code RCM_a021 front left safety restraint system fault. An issue that arises purely due to poor seat design. It is the fault of the seat pinching a wire from moving back and forth. This safety issue is an inevitability and not a one off chance. This issue is publicly noted on forms throughout all the years of this car’s production. This error results in airbags not being properly deployed in the event of an accident and the car not properly reading the passenger…

   NHTSA complaint #11724519 · source
9. Filed Feb 7, 2026FLDriver Assistance & Safety TechElectrical System

   Description of the Defect: While driving with Full Self-Driving (FSD) engaged, the vehicle's primary computer shuts down and reboots, causing a sudden loss of all safety features, including Blind Spot Monitoring, Lane Departure Warning, Forward Collision Warning, and the driving visualization. The cameras go black while the vehicle is in motion. The Trigger: The failure is triggered by high electrical load. If the Cabin Heater (HVAC) and Seat Heaters are active while FSD is…

   NHTSA complaint #11716395 · source
10. Filed Feb 2, 2026WAElectrical SystemOther / UnknownVisibility & Wipers

    After downloading Tesla’s update (no. 2025.44.25.4) software my heater (with the window defrost functionality) in winter stopped operating. I made my update while at my nearest Tesla service compound (location verifiable per system location log) on 01/25/26 when that same day software began throwing HVAC error codes with blowing cold air, when previously my heat ran well. This is not coincidental; this is system design failure.

    NHTSA complaint #11714886 · source
11. Filed Oct 17, 2025FLElectrical SystemAcceleration & Cruise ControlVisibility & Wipers

    The center display (Vehicle Pad) on my 2018 Tesla Model 3 went completely blank while driving. This eliminated access to all vital driving information including the speedometer, gear selection, and safety indicators. Safety Concern: Without visible speed data and wipers the vehicle cannot be operated safely or legally. I attempted to reboot the system and power cycle the vehicle but the screen still failed.

    NHTSA complaint #11694004 · source
12. Filed Oct 7, 2025GADriver Assistance & Safety TechElectrical SystemOther / Unknown

    No warning messages at all, all cameras/sensors stopped working all at once while driving, full self drive stopped working, lane assist, safety features of full self drive was degraded by this. Car software v12 (2024.44.25.2 288ce84bb43e), according to the dealership the computer fried randomly.

    NHTSA complaint #11691825 · source

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