Tesla is recalling 20,349 Model 3 and Model Y cars since federal tests show that some of the low beams produced more light than a regulated section of the beam pattern. The recall applies to a select run of Model Y crossovers between 2020 and 2023, and also some select runs of Model 3 sedans between 2017 and 2023. A part number of vehicle made in those years won’t necessarily have the defect, it is dependent on the type of headlamp that was originally equipped (or was put on during a later service).

The cars received headlamps made by Marelli Automotive Lighting. In one photometric zone where an overage is not allowed by federal rules for that photometric section, up to 230.1 candela is delivered where a 125 candela limit is permitted. Straying higher than this light means that some cars might create a glint for cars coming at it with headlamps especially on bad weather days where rain or snow might create enough moisture to make it scatter light across the field of view. Tesla claimed the infraction was so slight there were no accidents or injuries found during the test but federal lawmakers rejected that premise.

Tesla’s final repair has not been determined but there is the possibility of an inspection, adjustment, or a replacement of the offending headlamps. This won’t be like previous recalls where the fix was over the air, instead an owner may have to go to service center where they work on these specific parts. Notification letters are said to be scheduled out for delivery around September 15 th, 2026.

1. Vehicles Included in the Recall

The recall covers 18,735 Tesla Model Y crossovers manufactured for model years 2020 through 2023. It also includes 1,614 Model 3 sedans spanning model years 2017 through 2023, bringing the total affected population to 20,349 vehicles. These broad model-year ranges do not mean that every Model 3 or Model Y produced during those periods requires service. The campaign applies only to vehicles fitted with particular headlamp assemblies identified through Tesla’s manufacturing, repair, and component-tracking records.

Important Details About Affected Tesla Vehicles:

• Recall includes 20,349 Tesla vehicles
• Model Y represents majority affected
• Selected Model 3 vehicles included
• Specific headlamp assemblies determine eligibility
• VIN checks provide accurate confirmation

Tesla estimates that approximately 100 percent of the specific vehicles listed in the recall population contain the noncompliant hardware. That calculation does not suggest every Model 3 and Model Y has excessively bright headlights. It means the company believes all 20,349 vehicles identified through the campaign’s narrower production and service records are likely affected. Owners should therefore rely on an official VIN lookup rather than comparing their vehicle’s model year or manufacturing date with general information published about the recall.

The Model 3 and Model Y were included together because both vehicles received headlamp assemblies capable of producing excessive light in the same restricted photometric zones. Some affected cars received the assemblies during original production, while others obtained them as replacement parts during service visits. This mixed installation history makes the recall more complicated than one defined by a simple manufacturing period. Tesla must examine factory records and service histories to identify every vehicle that may contain one of the affected components.

2. The Headlamp Assemblies Behind the Problem

The recall involves low-beam headlamp assemblies supplied by Marelli Automotive Lighting and manufactured at the supplier’s facilities in Ciudad Juárez, Mexico. Regulatory documents identify the affected units through part numbers 1077371-98-L and 1077372-00-L. These specific component numbers allow Tesla and federal regulators to separate the noncompliant assemblies from visually similar headlights that meet all applicable requirements. Precise part identification is particularly important because the same vehicle model can use different lighting hardware depending on its manufacturing date or repair history.

Key Information About Affected Headlamp Assemblies:

• Marelli supplied the affected headlamps
• Assemblies were manufactured in Mexico
• Two specific part numbers identified
• Similar headlights may remain compliant
• Repair history can determine inclusion

The affected headlamp units carry a supplier manufacturing date of June 2, 2023, or later. Most of the vehicles included in the campaign were assembled before that date, but their inclusion reflects how replacement components move through an automaker’s service network. A headlamp installed after a collision, lighting failure, water intrusion, or routine repair can change a vehicle’s recall status even when its original factory equipment was compliant. Production dates alone therefore cannot reliably determine whether an individual Tesla requires corrective work.

An additional 432 vehicles reportedly received the specified assemblies between June 2, 2023, and May 3, 2024, either during production or through service-related replacement. This smaller group demonstrates why Tesla had to review more than assembly-line records when developing the recall population. Service centers must document replacement components accurately so affected vehicles can be traced years later. Without reliable records connecting part numbers to individual VINs, locating every noncompliant headlamp would require an unnecessarily broad and expensive inspection program.

3. Federal Brightness Limits and Test Results

Federal Motor Vehicle Safety Standard No. 108 regulates automotive lighting equipment, including headlamp brightness, beam placement, visibility, and glare control. Within the designated 10U to 90U photometric test zone, low-beam intensity cannot exceed 125 candela. This upper area of the beam pattern is carefully restricted because light directed too high can enter the eyes of drivers approaching from the opposite direction. The standard allows useful road illumination while preventing manufacturers from achieving greater brightness at the expense of surrounding traffic.

Federal Standards and Laboratory Test Findings:

• Federal limit equals 125 candela
• Affected lamps reached 230.1 candela
• Measured brightness exceeded legal requirements
• Upper beam zones create glare
• Standards balance illumination and safety

Photometric laboratory testing found that the affected Marelli headlamps could produce as much as 230.1 candela in the restricted upper zones. Compared with the federal maximum of 125 candela, the measured output was approximately 84 percent higher than permitted. The discrepancy does not necessarily make the entire low-beam pattern excessively bright. It means particular portions of the projected light exceeded the legally defined limit, creating a formal noncompliance even if most of the headlamp’s performance remained within specification.

Automotive lighting rules examine far more than the brightness a driver sees directly in front of the vehicle. Engineers measure numerous points across the projected pattern to ensure the lamps illuminate lanes, signs, shoulders, and potential hazards without creating unnecessary glare. A headlight can provide excellent forward visibility while still violating the standard in a small upper region. Federal limits therefore focus on balancing useful illumination with the ability of other motorists to maintain clear vision when vehicles approach one another at night.

4. Transport Canada Initially Identified the Issue

The regulatory history began in 2023 when testing conducted by Transport Canada found that certain Tesla Model 3 low-beam headlights did not satisfy mandatory output requirements. The Canadian findings brought attention to excessive illumination within the designated upper portions of the beam pattern. Because vehicle lighting components are often shared across North American markets, a result discovered in Canada can have direct implications for cars sold in the United States. Tesla was formally notified about the test findings during the early part of 2024.

Timeline of the Initial Regulatory Discovery:

• Canadian testing identified excessive brightness
• Model 3 headlights failed requirements
• Shared components affected American vehicles
• Tesla received notification during 2024
• Internal testing confirmed Canadian findings

After receiving the information, Tesla performed internal evaluations of the affected headlamp assemblies. Those tests reportedly confirmed the Canadian laboratory results and showed that output exceeded the permitted level in the relevant photometric zones. The confirmation gave Tesla a technical basis for understanding the discrepancy, but the company did not immediately agree that a safety recall was necessary. Instead, it examined whether the excess brightness created a meaningful real-world hazard or represented a minor technical deviation without practical consequences.

In the spring of 2024, Tesla submitted a formal petition requesting that regulators classify the noncompliance as inconsequential to motor-vehicle safety. Federal rules allow manufacturers to make such requests when a component fails a technical requirement but allegedly creates no meaningful danger. Tesla’s petition began an extended administrative review involving test data, regulatory interpretation, field reports, warranty records, and possible environmental effects. That process continued for more than two years before federal officials reached their final decision in July 2026.

5. Tesla Argued That the Difference Was Inconsequential

Tesla maintained that the elevated output occurred outside the primary natural line of sight used by vehicle operators. From the company’s perspective, the location of the excessive illumination reduced the likelihood that it would interfere with drivers approaching from the opposite direction. Tesla also argued that ordinary road experience had not demonstrated a consistent glare problem. This distinction formed the foundation of its request to avoid a recall despite laboratory measurements showing that the assemblies exceeded the strict numerical limit established by federal regulations.

Arguments Presented in Tesla’s Regulatory Petition:

• Excess light remained outside sightlines
• Ordinary driving showed limited glare
• No related crashes were reported
• Customer complaints remained relatively uncommon
• Tesla considered deviation practically insignificant

The company supported its petition with real-world safety information showing no known crashes, injuries, or deaths connected to the headlamp brightness. As of August 2, 2026, Tesla had identified three warranty claims and one field report related to the affected lights, but no associated accidents or casualties. Those numbers suggested that the issue had generated few customer complaints compared with the size of the potentially affected population. Tesla believed that this limited field history demonstrated that the technical deviation had not produced a measurable safety problem.

Absence of documented crashes does not automatically establish that a defect is harmless, particularly when the concern involves temporary glare that may be difficult to trace after an incident. Drivers affected by excessive light may never identify the make or model of the approaching vehicle, and minor visibility problems are not always formally reported. Federal regulators therefore considered Tesla’s field data alongside laboratory results and predictable environmental conditions. The decision ultimately depended on whether the company proved the noncompliance was inconsequential, not whether officials could identify a previous crash caused directly by it.

6. Federal Regulators Rejected Tesla’s Petition

Federal safety regulators rejected Tesla’s petition on July 17, 2026, concluding that the company had not met its legal burden of demonstrating that the lighting discrepancy was inconsequential. The ruling transformed the matter from a disputed technical variance into a noncompliance requiring a formal recall. Regulatory officials did not need to establish that the headlights had already caused a collision. Their responsibility was to determine whether output beyond the prescribed limit could create a reasonably foreseeable safety risk under actual driving conditions.

Reasons Regulators Required a Formal Recall:

• Tesla failed to prove insignificance
• Excessive brightness creates foreseeable risks
• Poor weather can scatter illumination
• Glare may reduce visual contrast
• Objective lighting limits require compliance

The agency focused particularly on difficult weather conditions such as heavy rain, dense fog, and blowing snow. Moisture and airborne particles can scatter light that would otherwise travel away from a driver’s immediate view. When a headlamp sends excessive intensity into upper photometric zones, that scattered illumination can form a bright veil around an approaching vehicle. The effect may reduce contrast, obscure pedestrians or lane markings, and interfere with another motorist’s ability to identify hazards during conditions when visibility is already compromised.

By rejecting the petition, regulators reaffirmed that manufacturers must meet objective photometric limits even when field reports remain limited. Standardized testing exists because uncommon combinations of weather, road geometry, traffic position, and driver sensitivity cannot always be reproduced through customer complaints. A headlamp specification must protect motorists across a wide range of predictable circumstances, not merely ordinary clear-weather driving. Tesla consequently became responsible for notifying owners and providing a remedy that returns every affected assembly to full compliance without charging customers.

7. The Repair May Require Physical Hardware Work

Many previous Tesla recalls have been resolved remotely because their underlying problems involved software settings that could be corrected through an over-the-air update. Owners received the revised programming through the vehicle’s internet connection without visiting a service facility. The present headlamp issue appears different because regulators identified excessive output from specific physical assemblies. No software adjustment has yet been confirmed as capable of bringing those components within the required limit, making hands-on inspection, modification, or replacement the more likely solution.

Possible Repair Methods for Affected Headlights:

• Software update remains unconfirmed
• Physical inspection may become necessary
• Existing assemblies might require recalibration
• Complete replacement could be required
• Final remedy remains under development

Tesla stated in its filing that its engineering and service teams were still developing the official remedy. If technicians can adjust the existing assemblies safely and permanently, the repair may involve recalibration or modification rather than complete replacement. If the excessive output originates from an internal optical or manufacturing characteristic that cannot be corrected reliably, Tesla may need to install new compliant headlamps. The final procedure must be approved, repeatable across thousands of vehicles, and capable of restoring compliance without reducing useful nighttime visibility.

Tesla has said that compliant headlamp assemblies were introduced into production at different times for the two affected models. Appropriate units reportedly entered Model 3 production in Fremont on December 4, 2022, while compliant Model Y equipment was introduced at Fremont and Austin on August 7, 2023. These dates help explain how Tesla separated compliant vehicles from the recall population. They may also provide a supply foundation for producing the replacement assemblies needed once the company finalizes and launches its repair program.

8. Owner Notifications and VIN Checks

Tesla expects to mail official notification letters to affected owners around September 15, 2026. Those notices should explain the safety issue, identify the involved vehicle, and provide instructions for obtaining the repair once the remedy becomes available. Tesla notified its sales and service locations about the campaign in early August so employees could prepare for customer questions. Owners may also receive information through the Tesla smartphone application, which frequently serves as the company’s primary channel for scheduling service and communicating vehicle-specific updates.

Actions Recommended for Affected Tesla Owners:

• Check recall status using VIN
• Review notifications inside Tesla application
• Reference Tesla’s official recall code
• Schedule service when remedy becomes available
• Complete repairs without unnecessary delay

Drivers who want immediate clarification can contact Tesla customer service at 1-877-798-3752 and reference recall code SB-24-17-003. They can also enter their vehicle’s VIN into the official federal recall lookup portal. A VIN search is more dependable than relying on model year, assembly location, or the date the vehicle was purchased. Tesla’s component-tracking information determines inclusion, especially when a headlamp may have been installed during a repair long after the vehicle originally left the factory.

The campaign is a standard safety recall rather than an urgent stop-drive instruction. Owners can continue operating their vehicles while waiting for notification unless Tesla or federal regulators issue different guidance. Even so, drivers should arrange the repair promptly once parts and appointments become available. Headlight compliance protects more than the person driving the recalled vehicle because excessive glare primarily affects other road users. Completing the remedy will ensure the lamps maintain useful road illumination while remaining within the brightness limits intended to protect approaching traffic.

9. Tesla’s Other Federal Safety Actions

The headlamp campaign represents Tesla’s fifth formal federal recall during the current calendar year. An earlier May action covered more than 218,000 Model 3, Model Y, Model S, and Model X vehicles because of concerns involving the rear-camera display. Other recalls addressed Cybertruck structural problems associated with stud-hole cracking and a small number of Model 3 and Model Y vehicles imported from Canada without complete compliance certification. These campaigns involved different causes, affected populations, and repair procedures.

Other Safety Actions Affecting Tesla Vehicles:

• Headlamp campaign marks fifth recall
• Rear-camera recall covered numerous vehicles
• Cybertruck faced separate structural problems
• Canadian imports lacked complete certification
• Different campaigns require different remedies

Recall numbers should be interpreted with context because one campaign can involve a small hardware batch while another covers hundreds of thousands of vehicles through a software correction. Tesla’s connected architecture allows the company to resolve certain problems remotely, but physical defects still require conventional service work. The existence of several recalls does not prove that every Tesla is unsafe. It shows that vehicle design, manufacturing, supplier control, documentation, and regulatory compliance continue to be monitored after products enter the market.

Federal agencies are also examining broader concerns that remain separate from the headlight recall. Investigators have been reviewing reports involving suspension failures across approximately 1.2 million Tesla vehicles, with attention focused on whether a component problem could cause loss of directional control. Tesla’s Autopilot driver-assistance technology also remains under regulatory scrutiny following reported crashes, investigations, and legal disputes. These inquiries do not determine the outcome of the headlamp campaign, but they illustrate the level of continuing oversight applied to advanced vehicle technologies.

10. Why Precise Headlight Compliance Matters

Tesla has grown from an electric-vehicle startup incorporated in 2003 into a major manufacturer of cars, charging equipment, battery systems, software, and energy products. Its vehicles combine physical components with centralized computers, artificial-intelligence development, infotainment systems, driver-assistance functions, and remote updates. That integration can make repairs faster when software is responsible, but it does not remove the importance of conventional hardware quality. Headlamps, suspension parts, cameras, brakes, and structural components must still satisfy detailed manufacturing and safety standards.

Reasons Accurate Headlight Performance Remains Essential:

• Modern headlights provide greater brightness
• Excessive illumination can create glare
• Beam positioning affects surrounding motorists
• Regulations balance innovation with safety
• Hardware must satisfy federal standards

Modern headlights are becoming brighter and more technologically sophisticated as manufacturers introduce LEDs, adaptive beams, matrix lighting, automatic high beams, and steering-responsive illumination. These systems can improve nighttime visibility substantially, yet additional brightness must remain carefully controlled. Light aimed above the correct cutoff can reduce safety instead of improving it by dazzling other motorists. Photometric regulations ensure that innovation benefits the vehicle using the lights without imposing an unreasonable visibility burden on drivers, cyclists, pedestrians, or motorcyclists approaching from another direction.

Tesla’s recall of 20,349 Model 3 and Model Y vehicles demonstrates how a relatively narrow component variation can require a formal national service campaign. Owners are not being asked to stop driving, and no crashes, injuries, or deaths have been linked to the issue. Nevertheless, the measured output exceeded the federal maximum by a significant margin, making corrective action necessary. Once Tesla finalizes the remedy, affected owners should complete the service so their headlights provide strong nighttime illumination without exceeding the limits designed to protect everyone sharing the road.