2024 Tesla Model Y: headlights failing or too dim

Filed Oct 30, 2026 · Driver assistance · CA

Following a software update (2026.38.3.2), without any prior warning messages or symptoms, the vehicle's onboard computer failed on 10/26/26, which resulted in the loss of critical driver-assistance and safety systems. The affected systems included the backup and side-view cameras, blind-spot monitoring, emergency braking, collision warning, lane departure warning/assistance, rear cross-traffic alert, GPS, and adaptive headlights. The loss of the cameras and blind-spot monitoring reduced my ability to identify surrounding vehicles and pedestrians, while the loss of automatic emergency braking, collision warnings, and lane-assistance features eliminated important safety functions designed to help prevent accidents. The problem was confirmed by a Tesla Service Center. According to Tesla's diagnostic findings: "In this instance, your vehicle's computer consists of both a primary and a secondary component. Our diagnostic findings indicate that both parts failed, not due to an internal short, but because of a complete loss of communication between the primary and secondary units." Tesla inspected the vehicle and determined that the computer required complete replacement. The vehicle is currently at the Tesla Service Center awaiting repair and will be unavailable for inspection. A previous recall (25V‑002) addressed a similar computer failure and relied on a software update as a remedy, however the recurrence of a related failure raises concerns about whether that remedy was sufficient. I am concerned that the automatic software update on 10/26/26 may have contributed to the failure of the car computer. The fact that the failure occurred after the update, without any prior warning, and resulted in the loss of multiple critical safety systems presents a serious safety concern. A software update should not leave a vehicle without essential safety equipment or render multiple driver-assistance systems inoperable.

Filed Sep 14, 2026 · Driver assistance · CA

My 2024 Tesla Model Y (VIN [XXX]) has lost all forward camera-based safety and driver assistance functions. The vehicle displays alerts that Automatic Emergency Braking is unavailable, Park Assist is unavailable, adaptive headlight features are unavailable, and that self-driving is degrading and the vehicle may stop. Autopilot and Full Self-Driving will not engage. The side repeater cameras and the rearview camera still display images normally on the touchscreen, so the failure is not a loss of video display. The loss of Automatic Emergency Braking and forward collision warning means the vehicle has no automated protection against a frontal collision, and the loss of adaptive headlights and auto high beam means the high beams no longer dim for oncoming traffic. I performed a touchscreen reboot and a full power-off reset, and the condition returned. The vehicle is equipped with HW4 hardware and falls within the model years covered by the federal safety agency campaign 25V002000 (Tesla SB-25-00-001) concerning a computer circuit board short, though my VIN was not included in that recall population. I am reporting this because a vehicle sold with these active safety systems is now operating without them, and I believe other owners of vehicles in this build range may be experiencing the same failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 23, 2026 · Driver assistance, Steering · CA · crash

On 7/22/2026 between 6pm and 7pm PST, I was driving my Tesla Model Y on I-405 southbound in Orange County, CA, between the Westminster Blvd exit and Exit 73, with Full Self-Driving (Supervised) engaged. The incident occurred at an express lane ingress/egress transition zone where a physical barrier separates the express and general-purpose lanes. While in FSD mode, the vehicle initiated a lane change on its own. During the lane change, the FSD system misjudged the lane boundary and steered the vehicle into the lane divider/barrier. The vehicle struck the divider on the front right side. The failed system is the FSD/automated steering and lane change function. No forward collision warning sounded and no automatic emergency braking activated before impact with the fixed barrier. There were no warning lamps, alerts, or symptoms prior to the failure; the system initiated and executed the lane change without indicating any problem. The impact damaged the front right body panel, front right bumper area, and the right headlight. My safety and the safety of vehicles in adjacent lanes was put at risk, as the collision occurred at roadway speed during an automated maneuver I did not initiate. Had the divider been a vehicle or a pedestrian work zone, the outcome could have been far more severe. All FSD telemetry, camera footage, and vehicle data from the incident should be available from the manufacturer, and I have requested the vehicle data report from Tesla. The vehicle is available for inspection upon request and is being taken to a Tesla-certified collision center for repair. An insurance claim is being filed with my carrier. The vehicle has not yet been inspected by the manufacturer or police.

Filed Nov 28, 2025 · Driver assistance, Lights · MD

My vehicle’s auto-high beam system does not properly recognize other traffic. It specifically fails to substantially dim the high beams when approaching oncoming vehicles or when behind other traffic on roadways. I have reported this to the manufacturer and attempted to have the dealership fix this on multiple occasions. The dealerships insist that the vehicle dims the required number of pixels in the headlights to not blind other drivers. However, this does not appear to be effective as other drivers that I have followed behind reported that they were being blinded by my highbeams while I was behind them. There is a notable difference between the highbeams and the low beams which the car fails to substantially adjust for when using this required feature to utilize the self driving/auto pilot feature.

Filed Feb 25, 2025 · Driver assistance · 45,000 miles · PA · crash

The contact owns a 2024 Tesla Model Y. The contact stated that as he was driving forward at approximately 5 MPH after having stopped for a traffic signal his vehicle was crashed into the driver's right front fender by another vehicle. The contact stated the vehicle's front collision sensor did not detect the other vehicle. The contact stated that the driver's side front fender and the hood on his vehicle had to be replaced. The contact was not sure about the damage to the other vehicle, but there were no injuries. The police arrived on scene and wrote a report but he was not given the report number. The vehicle was towed to a local dealer and the body damage was repaired, however, the failure of the front collision avoidance sensor was not diagnosed. The contact stated that the failure reoccurred. The contact was driving at approximately 35 MPH at night when he crashed into the rear of a vehicle that was double parked on the street. The contact stated that the parked vehicle was in a poorly illuminated section of the street. The contact stated that his forward collision avoidance sensor had failed to engage and had not stopped his vehicle. The contact stated that the police were on the scene and had not issued a report. The contact had the vehicle towed to a local body shop, where the damage to the front bumper, grill, and headlights was repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 45,000.

Filed Jan 13, 2025 · Driver assistance · VA

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. I had this issue start on 1/12, and I scheduled the earliest appointment available for 1/30. They did not offer me a rental or any assistance during this time, and I need my vehicle to commute to work and conduct other essential activities. It has just over 1,000 miles on it and is ~3 months old now. This issue impacts: backup camera, emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. This has increased the safety risk of my vehicle tremendously, and i have received no reparations for it.

Filed Jan 9, 2025 · Driver assistance · WI

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. I had this issue start right around [XXX]. I scheduled the soonest appointment available for 12/30 however Tesla contacted me and moved my appointment because they stated that the part was unavailable at this time and should be delivered by 01/9/25 but now it has been pushed back to 1/20/25. Not offering me a rental or anything on my brand new '24 Tesla. It has just over 1,000 miles on it and is ~3 months old now. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. This has increased the safety risk of my vehicle tremendously... Tesla has not seemed to publicly acknowledge the issue yet either. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 29, 2024 · Airbags, Driver assistance · CA

Several malfunctions: all cameras including rear cameras were disabled, high beams would flash on and off continuously when in auto mode. Front Passenger safety restraint failure alert message that eventually turned off. The car continuously has a humming noise even after turned off. Navigation system was not operable.

Filed Dec 21, 2024 · Driver assistance · PA

After a software update pushed by Tesla, the AP4 computer in my 2024 Tesla Model Y shorted out, causing a complete failure of all safety systems controlled by this computer. The following safety-critical and driver-assist features have become non-functional: 1.Cruise Control (adaptive or otherwise) 2.Forward Collision Warning 3.Lane Departure Warning 4.Lane Keeping Assistance 5.Blind Spot Warning 6.Parking Collision Warning 7.Full Self-Driving and Auto Park features 8.Cameras required for Autopilot functionality 9. Auto headlight dim / Auto wiper system 10. BACK UP CAMERA RENDERED INOPERABLE Additionally, because the GPS system has failed, the vehicle’s Navigation system is inoperable. This impacts Tesla’s unique route planning feature that sets up Supercharger stops during long journeys. Without a functioning navigation system, I cannot properly plan my travel or locate charging stations, which severely affects the usability of the vehicle. This system also initiates preconditioning of the battery (heats it up to be able to charge), so super charging is extremely slow without the gps system availability. Safety Concerns: The failure of these systems, especially safety features like forward collision warning, lane keeping assistance, and blind spot monitoring, puts both the driver and others on the road at risk. Losing access to safety-critical functions after an update is unacceptable and poses a serious danger to vehicle occupants and surrounding traffic. Rear visibility in the car is very limited without the federally required backup camera. Incident Details: • The issue occurred immediately following a software update. • Tesla pushed the update remotely without providing any warning or indication of potential risks. • The failure appears to be related to a hardware short in the AP4 computer, directly caused or exacerbated by the update.

Filed Dec 20, 2024 · Driver assistance · CA

On 12/16/2024 my vehicle received software update 2024.39.15, after installing the update i went to the grocery store and noticed nothing was working in the car except basic driving functionality. cameras were showing up as a black screen. TACC, aurosteer and FSD supervised were no longer working as well as AEB,FCW,BSM,LDW,LKAS and the gps had me in the middle of the ocean, headlights on during broad daylight. I informed a service center by my home and they simply didn’t care, i took it to another service center 50 minutes away and they took two days to do repairs and diagnostics, i was told the computer had shorted out and the technician replaced the car computer and AI4 (HW4) computer system which runs safety features. A software update physically pushed from tesla should not be shorting out computers on its vehicles, i heavily rely on the cameras and safety features since living in a state where nobody knows how to drive (lol). I hope my vehicle is fixed and this issue doesn’t persist anymore.

Filed Dec 17, 2024 · Acceleration, Driver assistance · OH

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. I had this issue start right around Thanksgiving. I scheduled the soonest appointment available for 01/03. Not offering me a rental or anything on my brand new '24 Tesla. It has just over 1,000 miles on it and is ~1 months old now. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, back camera, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. This has increased the safety risk of my vehicle tremendously... Tesla has not seemed to publicly acknowledge the issue yet either.

Filed Dec 16, 2024 · Driver assistance · MN

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. I had this issue start right around Thanksgiving, specifically [XXX]. I scheduled the soonest appointment available for 12/13 however Tesla contacted me and moved my appointment because they stated that the part was unavailable at this time and should be delivered by 01/20/25. Not offering me a rental or anything on my brand new '24 Tesla. It has just over 2500 miles on it and is ~2 months old now. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. Additionally, the vehicle came to a stop on the highway when my wife and I were in the car on the night of [XXX], forcing us to perform an emergency pullover and abandon the car 22 miles north of Rochester, MN overnight. This has increased the safety risk of my vehicle tremendously... Tesla has not seemed to publicly acknowledge the issue yet either. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)