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critical 31 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
A rearview camera that does not function reduces the driver's rear view, increasing the risk of a crash.
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
On some Model 3 and Model Y vehicles, the Occupant Classification System (OCS) signal might be affected by electrical interference in the seat electrical harness, causing the airbag indicator to display on the touchscreen.
full bulletin at NHTSA ↗Certain Model 3 and Model Y vehicles may be equipped with refrigerant pressure/temperature (P/T) sensors in the heat pump that can fault over time.
full bulletin at NHTSA ↗Some Heat Pump Model 3 vehicles were built without a hydraulic control unit (HCU) wake-up wire, and in rare circumstances, braking and stability control related alerts may appear on the instrument cluster and touchscreen during the vehicle power-on process. Such faults can typically be corrected and the affected functionality restored with a vehicle power cycle.
full bulletin at NHTSA ↗On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the LH and RH side repeater cameras may lose electrical continuity over time, resulting in premature failure of the cameras.
full bulletin at NHTSA ↗On certain Model S, Model X, and Fremont-built Model 3 vehicles, the Printed Circuit Board (PCB) for the LH side repeater camera may lose electrical continuity over time, resulting in premature failure of the camera.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
Owners report 12V battery failures that kill all vehicle controls with minimal warning, trapping occupants inside. The emergency door latch is not intuitive or accessible, and technicians require pneumatic pillows and makeshift tools to break in. A technician stated he sees multiple 12V failures per day. HVAC systems produce burning smells and formaldehyde levels 50 times above EPA safe limits; repairs across six visits have not resolved the issue.
Touchscreen freezes occur repeatedly from delivery, averaging once every 10 miles at 2000 miles, blacking out all telemetry and speed display while the vehicle is in motion. Rearview cameras fail without warning during reverse, sometimes not engaging at all—one owner hit a cement post when the camera failed. An autopilot ECU failure disabled all cameras, forward collision warning, lane-keep assist, and locked navigation to the failure point on screen.
Unintended acceleration events occur at very low speeds with no warning or intervention, and phantom braking causes sudden stops without reason, creating rear-end collision risk. One owner reports the vehicle veered across three lanes at 70 MPH and struck a light pole, resulting in fatal injuries. Service visits often fail to complete repairs—one dealer simply zip-tied a trunk-latch cable harness instead of fixing it—and recall parts remain unavailable over a year after announcement. A few owners report electrical burns from seat heaters and hearing damage from audio system malfunction.
Same Tesla Model 3 electrical reports on nearby years: 2018 · 2019 · 2021 · 2022 · 2023
12V auxiliary battery fails without adequate warning, rendering all vehicle controls inoperable including door locks, screens, and climate systems. Owners report being trapped in the vehicle with no way to exit or access children/pets. Technician access to the vehicle requires breaking in via pneumatic pillow and coat-hanger methods because mechanical emergency latches are not immediately accessible.
When: No consistent mileage pattern noted; reported as sudden failures on 2020 model year vehicles
Symptoms owners cite: Screen goes blank; All controls become inoperable; Door locks fail to unlock; Unable to open frunk or doors; Mechanical emergency door latch not intuitive or accessible; Climate control may default to high fan
Repairs/costs cited: Tesla technician required external 12V battery to access frunk, then had to break into vehicle using pneumatic pillow and makeshift coat-hanger tool to reach mechanical door latch; technician reported seeing multiple similar failures per day
Recalls/TSBs owners mention: Battery replacement; Tesla technician reported high frequency of 12V battery failures
HVAC heating unit produces burning smell and smoke from air vents. Subsequent inspections reveal melted and warped plastic underneath the unit and debris embedded in heating fins. Air quality testing shows formaldehyde levels 50 times above EPA safe levels. Repair attempted multiple times without resolution.
When: Multiple shop visits over extended period
Symptoms owners cite: Burning smell from air vents when HVAC on; Smoke coming from vents; High formaldehyde levels (6 ppm measured vs. EPA safe level); Chest/lung discomfort from brief vehicle occupancy; Plastic warping and melting visible under unit
Repairs/costs cited: First three visits: no root cause identified; fourth visit: debris in heating fins replaced; fifth/sixth visits: HVAC unit removed and plastic damage discovered; smell persisted after all repairs
Recalls/TSBs owners mention: Tesla stated working with legal team on possible buyback; New York Attorney General determined car ineligible for lemon law due to timing of service visits
Following 12V battery replacement service, rear backup camera, blind spot cameras, navigation system, Sentry Mode, and windshield wiper sensor became non-functional. Service was performed at licensed Tesla Service Center. No diagnostics performed to determine cause; service advisor initially denied responsibility then admitted inability to determine root cause without diagnostics.
When: Failure occurred immediately after service visit on February 27, 2025; vehicle returned in non-compliant condition
Symptoms owners cite: Rear backup camera non-functional; Blind spot cameras non-functional; Navigation system non-functional; Sentry Mode non-functional; Windshield wiper sensor non-functional; No malfunctions present prior to service visit
Repairs/costs cited: Service replaced 12V battery and rear glass without prior authorization; repair invoice increased from $180 estimate to $1,730; no parts replaced or diagnostics performed to restore failed systems
Recalls/TSBs owners mention: Service advisor denied responsibility; no diagnostics performed; no recall or TSB mentioned
Primary control screen freezes, blacks out completely, and requires several minutes to reset. During blackouts, all vehicle telemetry and controls are unavailable including speed display, turn signal status, and climate control. Climate control defaults to high fan blasts. Occurs repeatedly from vehicle delivery, averaging once every 10 miles driven at 2000 miles mileage.
When: From delivery; occurring over 2000 miles at roughly 100+ times per occurrence interval
Symptoms owners cite: Screen freezes and blacks out; Takes several minutes to reset; Speed and turn signal status invisible; High-pitched audio noise from system during blackout; Climate control blasts cold air on high fan during blackout; Complete inability to control or see vehicle status while driving highway speeds
Repairs/costs cited: Repair facility estimated $2,400 cost; repair not completed at time of complaint
Recalls/TSBs owners mention: None mentioned
Vehicle unexpectedly accelerates or lurches while owner is manually maneuvering into parking spot (reported at very low speed in covered garage), causing collision with cement wall with sufficient force to deploy airbags. No collision warning provided. No steering intervention effective. Owner reports friend experiencing identical problem.
When: Approximately 14,000 miles (per related loss-of-control complaint #11); #12 mileage not specified
Symptoms owners cite: Vehicle suddenly accelerates or lurches; Loss of steering control; No collision warning or intervention; Airbag deployment on impact
Repairs/costs cited: Vehicle towed to repair facility; extent of damage unknown; owner reported hearing of similar problem from another owner
Recalls/TSBs owners mention: None mentioned
Rear backup camera fails to turn on during reverse, or intermittently fails during reversing operation. One collision with cement post resulted when rearview camera failed. Another complaint describes camera stuck on, preventing rear visibility. Related to NHTSA Campaign 21V00D000, though not all affected vehicles included in recall.
When: Approximately 400 miles (collision incident); approximately 20,000 miles (intermittent failure)
Symptoms owners cite: Rear backup camera fails to engage when shifting into reverse; Intermittent failure during reverse operation; No warning light or alert; Complete loss of rear visibility when reversing
Repairs/costs cited: Vehicle towed to Tesla-certified body shop and independent yard; not diagnosed or repaired; recall parts unavailable
Recalls/TSBs owners mention: NHTSA Campaign 21V00D000 (Electrical System, Visibility, Back Over Prevention); parts not available at time of complaint; no direct manufacturer assistance
Following software update, autopilot ECU failed completely, disabling auto-dimming rear-view mirrors (stuck in dim mode, eliminating rear visibility), all cameras on vehicle, forward collision warning, autopilot and lane-keep assist, and locking navigation to failure point on screen. Owner expresses uncertainty whether airbag deployment and automatic emergency braking still function.
When: Failure timing post-software update; mileage not specified
Symptoms owners cite: Auto-dim rear-view mirrors stuck in dim mode (zero visibility in rain, darkness, shade); All cameras non-functional; Forward collision warning non-functional; Autopilot non-functional; Lane-keep assist non-functional; Navigation screen locked at failure location; Uncertainty re: airbag deployment function; Uncertainty re: automatic emergency braking function
Repairs/costs cited: Vehicle not diagnosed or repaired; status unknown
Recalls/TSBs owners mention: None mentioned
Auto high-beam feature engages unintentionally three times within 20 seconds while driving 75 MPH at night with self-driving assist enabled. Causes driver ahead to decelerate and pull over; owner pulled over by police officer. Driver unable to disengage feature during incident.
When: Approximately 70,000 miles
Symptoms owners cite: Auto high-beam engages repeatedly without driver input; Feature engages during nighttime self-driving operation; Driver cannot disengage feature manually; Repeated activation confuses other drivers
Repairs/costs cited: Vehicle not diagnosed or repaired
Recalls/TSBs owners mention: Manufacturer informed owner that driver does not have control over feature
Trunk becomes inoperable after clicking trunk release via mobile app, instrument panel, or physical trunk release button. Recall Campaign 21V00D000 issued; vehicle taken to dealer, but cable harness was not repaired—only a zip tie was placed on the cable harness. Trunk failure persists after service.
When: Approximately 69,125 miles at time of complaint
Symptoms owners cite: Trunk release non-functional via all control methods; Trunk latch fails to open
Repairs/costs cited: Dealer placed zip tie on cable harness instead of performing repair; failure persisted post-service
Recalls/TSBs owners mention: NHTSA Campaign 21V00D000 (Electrical System, Visibility, Back Over Prevention); dealer did not perform proper repair
Vehicle owner's wife lost control of vehicle while driving 60 MPH on autopilot for unknown reason, striking fence with sufficient force to deploy airbags. Vehicle deemed total loss. Owner attempted to recover vehicle data but told only California residents eligible; vehicle subsequently destroyed. No root cause analysis provided.
When: Approximately 14,000 miles
Symptoms owners cite: Loss of steering control on autopilot; No warning or indication of failure; Airbag deployment on impact
Repairs/costs cited: Vehicle totaled; towed to independent yard and destroyed; data recovery denied to non-California owner
Recalls/TSBs owners mention: None; vehicle data inaccessible for analysis
Rear passenger windows become inoperable and cannot be opened or closed. Owner references regulatory compliance with Federal Motor Vehicle Safety Standard 571-6 regarding rear window operation. Issue may relate to child window-lock feature malfunction.
When: Approximately 44,300 miles
Symptoms owners cite: Rear windows inoperable; Windows cannot be opened or closed; Potential child-lock feature failure
Repairs/costs cited: Vehicle not diagnosed or repaired
Recalls/TSBs owners mention: Manufacturer informed via app; no action reported
Heated seat elements cause electrical burns to buttocks and back area on two separate occasions. First incident in 2024 at temperature level 3; second incident in 2025 at temperature level 2 despite owner reducing temperature. Indicates electrical fault in seat heating circuit.
When: 2024 and 2025 incidents on same vehicle
Symptoms owners cite: Electrical burns to buttocks and back; Pain from burns; Seat heater operates at excessive temperature despite user setting
Repairs/costs cited: None reported
Recalls/TSBs owners mention: None mentioned
Left headlight turn-signal indicator and windshield wiper fail. Malfunction occurred in 2022 (repaired) and recurred. Creates safety hazard by preventing signaling to other drivers and eliminating rain visibility.
When: First failure 2022 (repaired); recurrence in 2025
Symptoms owners cite: Left headlight blinker non-functional; Windshield wipers non-functional; Inability to signal turns; Inability to clear windshield in rain
Repairs/costs cited: Repair performed in 2022; issue recurred
Recalls/TSBs owners mention: None mentioned for recurrence
Plastic tip of charging pin breaks off inside charging port, obstructing charging handle from fully seating. Charging handle cannot connect; error message displayed. Owner removed obstruction with toothpick. Charging pin now non-functional. Service bulletin mentions issue as 2018-only, but occurs on 2020 vehicles.
When: At 5,000 miles
Symptoms owners cite: Plastic tip of charging pin broken; Tip obstruction inside port; Charging handle cannot fully seat; Error message displayed; Charging pin rendered unusable
Repairs/costs cited: Owner removed obstruction; pin tip non-recoverable; pin disabled
Recalls/TSBs owners mention: Service bulletin incorrectly states issue limited to 2018 vehicles
Vehicle brakes suddenly without warning and without any apparent reason. Owner reports occurrence over ten times with no pattern. Creates significant collision risk as vehicle stops almost instantly without warning, resulting in near rear-end collisions. Issue identified online as phantom braking.
When: Multiple incidents; no specific mileage provided
Symptoms owners cite: Sudden brake activation; No warning or indicator; Almost instant deceleration; Occurs repeatedly without pattern; Risk of being rear-ended
Repairs/costs cited: None reported
Recalls/TSBs owners mention: None mentioned
Motor Control Unit fails completely with no apparent cause. Service center unable to determine reason for failure and confirmed owner did nothing to cause MCU failure. Service center characterizes failure as rare. Vehicle 4 years old at time of failure.
When: Approximately 4 years/unknown mileage after 2020 purchase
Symptoms owners cite: MCU no longer functions; No warning prior to failure; Complete system shutdown
Repairs/costs cited: Service center unable to identify cause; repair status unknown
Recalls/TSBs owners mention: Service center confirmed failure is rare and owner not responsible
Vehicle displays DIR_a126 error code reducing speed below legal speed limit with no apparent reason. Issue is intermittent and Tesla service unavailable to diagnose. Research indicates problem has no consistent resolution or identified root cause.
When: Intermittent; mileage not specified
Symptoms owners cite: Vehicle speed reduced below speed limit; Intermittent occurrence; No clear reason for limitation; DIR_a126 error displayed
Codes mentioned: DIR_a126
Repairs/costs cited: None; service unavailable
Recalls/TSBs owners mention: Service unavailable
Vehicle navigating on autopilot on freeway takes intended exit ramp but fails to decelerate, requiring manual driver intervention. Owner cites similarity to characteristics of reported fatal crash.
When: Mileage not specified
Symptoms owners cite: Vehicle does not decelerate when exiting freeway; Requires manual driver intervention; Safety-critical failure on autopilot
Repairs/costs cited: None reported
Recalls/TSBs owners mention: None mentioned
Vehicle radio volume reaches excessive levels, causing damage to owner's hearing nerve and resulting in pain, especially when exposed to loud sounds.
When: Mileage not specified
Symptoms owners cite: Radio volume excessively loud; Hearing nerve damage; Pain from loud sound exposure
Repairs/costs cited: None reported
Recalls/TSBs owners mention: None mentioned
Vehicle veered across three lanes of traffic at 70 MPH and struck light pole while owner was driving. Airbags deployed. Owner was intubated, hospitalized, and declared brain-dead two weeks after accident. Police report indicated no effort made to avoid or slow down; however, spouse disputes this and suggests mechanical failure. Vehicle destroyed; manufacturer not notified; failure mileage unknown.
When: Mileage unknown
Symptoms owners cite: Vehicle veered across three lanes without driver input; No apparent driver intervention; Airbag deployment on impact
Repairs/costs cited: Vehicle destroyed; no mechanical investigation performed
Recalls/TSBs owners mention: Manufacturer not notified; no investigation conducted
Vehicle experiences total electrical system failure while driving on freeway. Multiple warnings displayed including '12V power system failure' and 'Electrical system failure' with warning that brakes might not work. Vehicle immobilizes on freeway; doors become locked; vehicle remains immobilized when parked.
When: During freeway driving; vehicle remains immobilized post-parking
Symptoms owners cite: Electrical system failure warning; 12V power system failure warning; Brake failure warning displayed; Vehicle immobilizes; Door locks inoperable; Vehicle cannot be unlocked or accessed
Codes mentioned: Electrical system failure, 12V power system failure
Repairs/costs cited: Vehicle immobilized; repair status unknown
Recalls/TSBs owners mention: None mentioned
Synthesized from 31 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
It's a serious issue. 31 complaints have been filed, including 4 reports involving a crash and 1 fatality(ies). We've classified it as critical based on NHTSA's reported outcomes.
Based on the 31 complaints filed, electrical issues most often appear around 33,229 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.