2019 Tesla Model 3 problems

UNKNOWN OR OTHER

Tesla FSD made Left Turn on Red Left-Turn arrow: On August 12, 2026, at approximately 4:30 PM, my 2019 Tesla Model 3 was operating in Full Self-Driving (FSD) mode at the intersection of US-71 West and Pedernales Summit Parkway in Austin, Texas, 78738. The vehicle proceeded to make a left turn while the left-turn traffic signal was displaying a red arrow. This was an unsafe traffic-control violation and created a potential collision risk. I had to monitor the vehicle and be prepared to intervene. I am reporting this as a safety issue with the vehicle’s automated driving/Full Self-Driving system. I also reported this issue to the Tesla through my Tesla APP but no action was taken from them. They have not even called and asked for this issue. I would request you to investigate this matter promptly and provide a detailed report on how this simple mistake could happen with the software.

NHTSA complaint #11763911 — an unverified report by a vehicle owner.

SEATS

The Restraint Control Module (RCM) fault code RCM_a056 intermittently appears and disappears on the vehicle's display. This code indicates a fault in the front passenger Occupant Classification System (OCS) — the sensor responsible for detecting passenger presence and weight to determine whether and how the passenger airbag deploys in a crash. Because the OCS sensor is malfunctioning, the passenger airbag may fail to deploy, deploy incorrectly, or deploy with wrong force in a collision, putting any front passenger at serious risk of injury or death. The fault is intermittent — it appears and disappears without any change in vehicle configuration or seating — which is consistent with a failing OCS sensor or degraded wiring harness connection under the passenger seat. No collision or injury has occurred. The vehicle has not yet been inspected by a dealer or service center. No independent inspection has been performed. Tesla has issued Service Bulletin SB-23-20-002, which has been revised at least seven times, acknowledging a known OCS sensor defect across multiple Model 3 vehicles. Despite this, no safety recall has been issued. The repair cost quoted by Tesla service is approximately $800–$2,000 out of pocket for what appears to be a widespread manufacturing defect in a critical safety system. Numerous other Model 3 owners have reported the identical fault code. The component is available for inspection upon request.

NHTSA complaint #11763478 — an unverified report by a vehicle owner.

AIR BAGS

The Restraint Control Module (RCM) fault code RCM_a056 intermittently appears and disappears on the vehicle's display. This code indicates a fault in the front passenger Occupant Classification System (OCS) — the sensor responsible for detecting passenger presence and weight to determine whether and how the passenger airbag deploys in a crash. Because the OCS sensor is malfunctioning, the passenger airbag may fail to deploy, deploy incorrectly, or deploy with wrong force in a collision, putting any front passenger at serious risk of injury or death. The fault is intermittent — it appears and disappears without any change in vehicle configuration or seating — which is consistent with a failing OCS sensor or degraded wiring harness connection under the passenger seat. No collision or injury has occurred. The vehicle has not yet been inspected by a dealer or service center. No independent inspection has been performed. Tesla has issued Service Bulletin SB-23-20-002, which has been revised at least seven times, acknowledging a known OCS sensor defect across multiple Model 3 vehicles. Despite this, no safety recall has been issued. The repair cost quoted by Tesla service is approximately $800–$2,000 out of pocket for what appears to be a widespread manufacturing defect in a critical safety system. Numerous other Model 3 owners have reported the identical fault code. The component is available for inspection upon request.

NHTSA complaint #11763478 — an unverified report by a vehicle owner.

SEATS

Safety restraint system tsb technical service bulletin, a known problem with my 2019 Tesla model three

NHTSA complaint #11762312 — an unverified report by a vehicle owner.

SEAT BELTS

Safety restraint system tsb technical service bulletin, a known problem with my 2019 Tesla model three

NHTSA complaint #11762312 — an unverified report by a vehicle owner.

AIR BAGS

Safety restraint system tsb technical service bulletin, a known problem with my 2019 Tesla model three

NHTSA complaint #11762312 — an unverified report by a vehicle owner.

SEATS

Alert RCM_a021pretenLapFrontLeft. Caused by the seat harness wires being pinched and stretched when moving the seat back/forward/up/down. Eventually the wires are damaged by the seat movement. Tesla has touted a feature called "Easy Entry" which moves the seat to a preset position to allow the driver to get in and out of the car more easily. This moves the seat lower and farther back and then moves the seat back up to the driver's position when ready to drive. This increased seat movement, every time the driver gets in and out of the car, causes the wires to wear prematurely and the above fault to trigger. In the event of an accident the driver side airbag may not deploy and/or the seat belt pretensioner may fail to lock the seat belt in place, leaving the driver exposed to serious potential injury risk. This issue can be seen in 2019 Tesla Model 3s and I believe an investigation by the NHTSA is warranted, at the very least.

NHTSA complaint #11759451 — an unverified report by a vehicle owner.

SEAT BELTS

Alert RCM_a021pretenLapFrontLeft. Caused by the seat harness wires being pinched and stretched when moving the seat back/forward/up/down. Eventually the wires are damaged by the seat movement. Tesla has touted a feature called "Easy Entry" which moves the seat to a preset position to allow the driver to get in and out of the car more easily. This moves the seat lower and farther back and then moves the seat back up to the driver's position when ready to drive. This increased seat movement, every time the driver gets in and out of the car, causes the wires to wear prematurely and the above fault to trigger. In the event of an accident the driver side airbag may not deploy and/or the seat belt pretensioner may fail to lock the seat belt in place, leaving the driver exposed to serious potential injury risk. This issue can be seen in 2019 Tesla Model 3s and I believe an investigation by the NHTSA is warranted, at the very least.

NHTSA complaint #11759451 — an unverified report by a vehicle owner.

SEAT BELTS

Front passenger safety restraint system issue requiring replacement of Occupant Classification System and updating front passenger airbag to maintain compatibility with front passenger seat. Costing almost $2000. Many others have reported of multiple repairs

NHTSA complaint #11759459 — an unverified report by a vehicle owner.

AIR BAGS

Alert RCM_a021pretenLapFrontLeft. Caused by the seat harness wires being pinched and stretched when moving the seat back/forward/up/down. Eventually the wires are damaged by the seat movement. Tesla has touted a feature called "Easy Entry" which moves the seat to a preset position to allow the driver to get in and out of the car more easily. This moves the seat lower and farther back and then moves the seat back up to the driver's position when ready to drive. This increased seat movement, every time the driver gets in and out of the car, causes the wires to wear prematurely and the above fault to trigger. In the event of an accident the driver side airbag may not deploy and/or the seat belt pretensioner may fail to lock the seat belt in place, leaving the driver exposed to serious potential injury risk. This issue can be seen in 2019 Tesla Model 3s and I believe an investigation by the NHTSA is warranted, at the very least.

NHTSA complaint #11759451 — an unverified report by a vehicle owner.

AIR BAGS

Front passenger safety restraint system issue requiring replacement of Occupant Classification System and updating front passenger airbag to maintain compatibility with front passenger seat. Costing almost $2000. Many others have reported of multiple repairs

NHTSA complaint #11759459 — an unverified report by a vehicle owner.

SEAT BELTS

To Whom It May Concern, I am logging a safety defect complaint regarding my 2019 Tesla Model 3, which displays active fault code RCM_a056 – Front passenger safety restraint system fault. This error deactivates the front passenger airbag and seatbelt pretensioners, creating an immediate, severe safety hazard. The Defect: The failure involves the Occupant Classification System (OCS) seat sensor and affects passengers in two ways: 1. Children (Current Stage): The fault triggers primarily when a child sits in the front seat. The degraded sensor mat cannot process lighter weight accurately, throwing an "implausible voltage" error that disables the airbag system. 2. Adults (Advanced Stage): online data shows this same code eventually locks out for adults due to internal wiring harness fraying or sensor circuit failure. Manufacturer Response: Tesla is aware of this fleet-wide defect and issued Service Bulletin SB-23-20-002 to address it. However, because my vehicle is out of warranty, Tesla refuses to cover this critical safety repair. Service centers are quoting owners $1,300 to $1,500+ out-of-pocket to fix an inherent manufacturing flaw in a federally mandated safety system. I urge the NHTSA to investigate the 2019 Tesla Model 3 OCS system and compel Tesla to issue a safety recall to fix this hazard at no cost to consumers. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11756690 — an unverified report by a vehicle owner.

AIR BAGS

To Whom It May Concern, I am logging a safety defect complaint regarding my 2019 Tesla Model 3, which displays active fault code RCM_a056 – Front passenger safety restraint system fault. This error deactivates the front passenger airbag and seatbelt pretensioners, creating an immediate, severe safety hazard. The Defect: The failure involves the Occupant Classification System (OCS) seat sensor and affects passengers in two ways: 1. Children (Current Stage): The fault triggers primarily when a child sits in the front seat. The degraded sensor mat cannot process lighter weight accurately, throwing an "implausible voltage" error that disables the airbag system. 2. Adults (Advanced Stage): online data shows this same code eventually locks out for adults due to internal wiring harness fraying or sensor circuit failure. Manufacturer Response: Tesla is aware of this fleet-wide defect and issued Service Bulletin SB-23-20-002 to address it. However, because my vehicle is out of warranty, Tesla refuses to cover this critical safety repair. Service centers are quoting owners $1,300 to $1,500+ out-of-pocket to fix an inherent manufacturing flaw in a federally mandated safety system. I urge the NHTSA to investigate the 2019 Tesla Model 3 OCS system and compel Tesla to issue a safety recall to fix this hazard at no cost to consumers. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11756690 — an unverified report by a vehicle owner.

STEERING

Tesla recently introduced auto parking as part of its FSD technology (Software 2026.20.6.11). Whenever we set the car destination to “home”, the auto parking has been able to gradually maneuver the car and self park in our garage. On 8/11, around 8:30pm, the car made a mistake during the auto parking. During the auto reverse into garage, the car came too close to the side of the garage and the driver side mirror hit the wall and partially broke. The driver was monitoring the car. If the car has kept its angle, it would have made it through correctly. But looks like it miscalculated and in a fraction of a second, the car’s side mirror hit the garage wall. Given the “ park” feature is new, looks like it hasn’t been tested well. It should be recalled until it is fixed and impacted drivers should be compensated for their repairs.

NHTSA complaint #11756615 — an unverified report by a vehicle owner.

SUSPENSION

Over a period of several weeks, the front suspension increasingly made noise (squeaking and groaning) and felt loose when turning and going over bumps. The front control arms were replaced 10/31/24. The problem has begun recurring over the last few months, with the same noise occurring and progressively worsening.

NHTSA complaint #11754415 — an unverified report by a vehicle owner.

SUSPENSION

Noise came from front left wheel while driving around a turn. Later the same day another noise when turning the wheel when leaving a parking spot. Steering felt strange. It was late at night, so left the vehicle until the morning. In the morning, discovered a large bolt in front of the vehicle. The front left wheel was turned differently than the right front wheel. Had to spend almost $400 to get the vehicle towed to a Tesla service center. They later confirmed, "The cause was detached links from the bushings and bolts. Technician replaced the front lower lateral links, front lower compliance links, and front stabilizer bar bushing brackets. Total cost for those repairs was $1,902.90. This could easily have resulted in an accident and even a fatality if we were not so lucky.

NHTSA complaint #11754524 — an unverified report by a vehicle owner.

SUSPENSION

The vehicle has quite a bit of noise coming from the suspension during normal driving. Creaks and groans.

NHTSA complaint #11754233 — an unverified report by a vehicle owner.

SUSPENSION

About one month ago, my 2019 Tesla Model 3 developed a suspension issue that caused a noticeable vibration in the rear of the vehicle whenever I drove above 40 mph. At first, we suspected the problem was related to a tire. However, after the technicians at the Tesla Service Center lifted the vehicle for inspection, they discovered a much more serious issue. They brought me into the service area to show me that the right rear suspension was being held together by only the front portion of a bolt. The retaining nut had completely come off, leaving the bolt barely in place. Had that bolt shifted even a few millimeters while I was driving, it could have resulted in a catastrophic suspension failure and a serious accident. Tesla determined that the loose bolt had caused damage to the right rear (passenger-side) suspension assembly. The necessary repairs totaled approximately $1,800, which I paid to restore the vehicle to safe operating condition.

NHTSA complaint #11754048 — an unverified report by a vehicle owner.

SUSPENSION

Honestly since I took delivery the vehicle I did notice a clunking sound every time I would turn into a steep driveway. I reported the problem to Tesla on multiple occasions and they either could not replicate the sound or find the problem when they inspected the vehicle. So I lived with the on and off clunking sound. Years later while driving on the freeway I heard a really hard clunk and I began to lose control of the car luckily I was close to home and I was able to make it to my street. Upon arrival my tires completely fell off the control arm and I could move the steering wheel at all. I had to get it towed to the body shop. Long story short the lower control arm bolt completely fell off. I just happy this didn’t result in a major accident. But I had to get the car towed. I am pretty upset that Tesla pretty much said there is no issue. My family has Teslas and in all of them I hear the same clunking sound.

NHTSA complaint #11754053 — an unverified report by a vehicle owner.

SUSPENSION

Between 2023 and 2026, I have had several clunking and creaking sounds from the suspension. These were then found isolated to "lateral and compliance link detachments" and Tesla noted these were "serious safety issues" and fixed them out of warranty at a cost of roughly $2500. When I pointed out that vehicles within this model range (manufactured April 2019 at the Fremont, CA plant) were flagged for a recall, they mentioned my vehicle was outside that range and insisted on an out-of-pocket repair. Further, I have similarly had to have the front left driver's side seat belt harness replaced because of a restraint control module failure. I have owned 3 other vehicles and have never had a restraint control module/seatbelt fail over just 82000 miles of use.

NHTSA complaint #11754101 — an unverified report by a vehicle owner.

SERVICE BRAKES

My brake lines have corroded to the point where half a liter of brake fluid has leaked out rendering the vehicle unsafe. Tesla admits that this is a design flaw but says that it does not affect this particular VIN number but the damage is exactly as described: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11753838 — an unverified report by a vehicle owner.

SEATS

The Front Passenger Safety Restraint System failed prematurely on my 2019 Tesla Model 3 at only 23,105 miles, triggering the alert 'Alerts - Seats - Front passenger safety restraint system issue/Service is required' and disabling passenger airbag functionality. Upon inspection, Tesla Service quoted $1,285.13 out-of-pocket to repair the system. While the root failure involves a $12 occupant occupancy sensor (Part #1099592-00-F), Tesla's mandatory service procedures require a full subsystem revision cascade to fix it. Specifically, under 'Replace Occupant Classification System (OCS) of Front Passenger Seat while Servicing Subcomponents' and 'Update Front Passenger Airbag to Maintain Compatibility with Front Passenger Seat,' Tesla requires replacing the right-hand seat harness assembly (Part #1489060-03-G) and the complete Front Passenger Airbag (Part #1077823-00-G) solely to maintain hardware compatibility with the revised sensor. Because Tesla redesigned subcomponent hardware without offering a backwards-compatible replacement sensor for earlier Model 3 production units, restoring a critical primary safety system creates an exorbitant financial barrier, forcing the vehicle to be operated with disabled airbags.

NHTSA complaint #11753364 — an unverified report by a vehicle owner.

AIR BAGS

The Front Passenger Safety Restraint System failed prematurely on my 2019 Tesla Model 3 at only 23,105 miles, triggering the alert 'Alerts - Seats - Front passenger safety restraint system issue/Service is required' and disabling passenger airbag functionality. Upon inspection, Tesla Service quoted $1,285.13 out-of-pocket to repair the system. While the root failure involves a $12 occupant occupancy sensor (Part #1099592-00-F), Tesla's mandatory service procedures require a full subsystem revision cascade to fix it. Specifically, under 'Replace Occupant Classification System (OCS) of Front Passenger Seat while Servicing Subcomponents' and 'Update Front Passenger Airbag to Maintain Compatibility with Front Passenger Seat,' Tesla requires replacing the right-hand seat harness assembly (Part #1489060-03-G) and the complete Front Passenger Airbag (Part #1077823-00-G) solely to maintain hardware compatibility with the revised sensor. Because Tesla redesigned subcomponent hardware without offering a backwards-compatible replacement sensor for earlier Model 3 production units, restoring a critical primary safety system creates an exorbitant financial barrier, forcing the vehicle to be operated with disabled airbags.

NHTSA complaint #11753364 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Tesla rolled out FSD 14 Lite to hardware, including to my vehicle and it’s become extremely unsafe.The past several days the vehicle will suddenly slow down/break causing people to almost crash into me, make sudden and indecisive lane changes, and constantly rocking the steering wheel left and right. I hope someone takes this seriously and has Tesla revert back to the old software or make changes before someone is killed.

NHTSA complaint #11753390 — an unverified report by a vehicle owner.