What 982 owners told NHTSA about the 2018 Tesla Model 3 Bev

Got warning about front drivers safety restraint failure on screen. Airbag warning began to display on the side showing if an accident occurred, they would not deploy. Talked with Tesla representatives and was told this is a known issue but would not be covered. Seems to be faulty wiring from chair moving over time based on what I was able to read. Error code was rcm_a021.

NHTSA ODI 11620367

Concern: I See the error message on my screen like restraint system fault require service. when I contacted Tesla for Sevice Repair I got an estimate which includes following fixes for a charge of 1,804.02. They are not covering for this saying the car is out of warranty. Seems like Tesla is aware of this issue and impacting many other Tesla's for 1) FIRST ROW SEAT HARNESS ASSEMBLY - RIGHT HAND(1489060- 03-G) 2) FIRST ROW - SEAT BELT REMINDER SENSOR BOX CLIP(1130363-00-B) 3)Correction: Replace Front Passenger Airbag And Update Vehicle Configuration - Remove and Replace

NHTSA ODI 11618804

What component or system failed or malfunctioned, and is it available for inspection upon request? “Front left safety restraint system fault” error code “RCM_a021” How was your safety or the safety of others put at risk? It appears as though the seatbelt or airbag may not function properly when needed. Has the problem been reproduced or confirmed by a dealer or independent service center? No but it has been on every time I drive. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No, upon requesting inspection, I was quoted 400$ Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No, it appeared periodically before but now it’s constant as of 9/29/2024

NHTSA ODI 11618185

The contact owns a 2018 Tesla Model 3. The contact stated that while operating the vehicle, the message "Front Driver’s Side Safety Restraint Fault" remained displayed. The cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure. The failure mileage was 35,000.

NHTSA ODI 11615616

The contact owns a 2018 Tesla Model 3. The contact stated while operating the vehicle, the "Front Passenger Safety Restraint System Fault" message remained displayed. The cause of the failure was not yet determined. The local dealer was notified of the failure. The contact stated that the failure had occurred previously with the front driver’s seat, the rear middle seat, and the rear passenger’s side seat. The vehicle was repaired at the local service center. The manufacturer was not contacted. The failure mileage was 80,000.

NHTSA ODI 11615634

The contact owns a 2018 Tesla Model 3. The contact stated that there was an abnormal sound underneath the vehicle. There were no warning lights illuminated. The front passenger restraint message was displayed. The contact received notification of NHTSA Campaign Number: 24V376000 (Seat Belts); however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was taken to the local dealer, where it was diagnosed that the front lower link was tearing. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 37,000. Parts distribution disconnect.

NHTSA ODI 11614274

I have an error on my car, have had this for almost a year now, Front Left Safety Restraint System Fault. This seems to be a safety issue that Tesla should recall. I have seen thousands of online posts related to this same issue. .

NHTSA ODI 11613384

Front passenger safety restraint system fault error. They tried fixing and it started the next day again. Now they want to replace this along with my airbag. This seems to be a consistent issue reading forums online. This is a manufacturing defect and major safety issue.

NHTSA ODI 11611309

Error code: RCM_a021 Front left safety restraint system fault. It appears this is a very common safety problem for many Tesla 3 owners and I believe it’s due to faulty design - shall be a recall paid by Tesla ! Please search on google.com, enter the error code above and you will see many complaints for the same issue…

NHTSA ODI 11611301

I randomly received an alert indicating “Front passenger safety restraint system fault” on my Tesla’s display. When I look this up, it indicates that the airbag may not deploy correctly in the event of an accident due to a seat sensor malfunction. When I contacted the service center, they quoted me at $1500 to repair this critical safety issue (involves replacing the seat sensor and reconfiguring airbags so that they will properly deploy). I believe this should be a recall and not something customers have to pay out of pocket to drive their car safely.

NHTSA ODI 11608623

The contact owns a 2018 Tesla Model 3. The contact stated while driving at an undisclosed speed, the seat belt warning light illuminated. The contact stated that the seat belt was inoperable, and the front seat restraint system failure message was displayed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 99,508.

NHTSA ODI 11607917

Vehicle started to display error message of "front left safety restraint system fault" intermittently, then would come on after the vehicle runs for about 5 minute and stay on. According to online forums, this is a common issue with Tesla Model 3, primarily related to the frequent movements of the seat (use of easy entry function). There appears to be electrical wires / sensors that can be damaged or pinched from moving the seat. There is no other issues aside from the safety alert. Tesla quoted more than $700, mostly in labor, to evaluate root cause of the issues. This can be a potential safety issue (not sure how this affects seat belt and/or airbag deployment), and it is not due to negligence or misuse of the vehicle; rather, this appears to be related to the design and quality of vehicle and should be covered by Tesla as a recall to fix the issue.

NHTSA ODI 11607370

Car reports RCM a056 error related to Occupant Control sensors. This is apparently a common problem for this year and model (related car forums and social media report > 100 such incidents that I can find), but is not covered ($1700 repair). This should be a safety recall.

NHTSA ODI 11604814

Seat occupancy system failure received. June 27, 2022 Mobile service inspected for wiring damage, as common cause. recommended appt at service center. Sep 2, 2022, could not fix issue, had to replace entire passenger seat. July 23, 2024 took car to service center for seat occupancy system failure received. Tesla stated I needed to pay for lumbar seat occupancy system sensor as it was failing. This was the same part (seat that was replaced in Sep of 2022). This part was 22 months old. Parts and labor for this part was $955. In addition, they stated this new part is not compatible with the existing seat occupancy system sensor in the seat portion of the seat and also not compatible with the passenger air bag. These parts including labor were an additional $1,500. These parts were not defective. Tesla has developed a new part of the safety system which is not backward compatible with other parts of the safety airbag system. This is improper practice and the cost for upgrading their defective manufacturing practices of safety systems should not be passed on to the customer.

NHTSA ODI 11604592

getting a "front left safety restraint fault" warning when moving the driver seat...is a known issue in tesla forums where the seat wiring harness is not secured properly and either a wire is crimped by the seat mechanicals or a wiring harness is pulled loose...

NHTSA ODI 11600206

Starting Jun 15 2024 an error came up saying "Left Restraint System fault" after a remote software update for Model 3 2018 Tesla The Alert comes up intermittently & Tesla requires $359.50 to change First Row Seat Harness Assembly - Left

NHTSA ODI 11598434

Apparently faulty sensor that then needs to replace airgbag and now it’s costing $1833!

NHTSA ODI 11597980

Started receiving Error RCM_a056 Front Passenger Safety Restraint System Fault. The vehicle shows that the passenger airbags are DISABLED after the alert is issued. I am working under the assumption that all passenger airbags (front, side, overhead) are currently disabled at all times. This puts my family at risk if there were to be a collision. Tesla seems to know exactly what the problem is because the estimate came back shortly with a list of fixes required at a cost of $1,768.35 to 1) Correction: install an Occupant Classification System (OCS) filter Module, 2) Correction: Retrofit SBR in OCS Equipped Front Passenger Seat - Remove and Replace, and 3) Correction: Replace Front Passenger Airbag and Update Vehicle Configuration - Remove and Replace. Quick internet search shows this is a SYSTEMIC problem with a bad part (Tesla forums and search your own databases for the past year or so... these are the people who know to report this to you, there are probably a lot of others). I'm 6 months out of warranty for a sensor that should not have wear and tear. Furthermore a retrofit demonstrates that they are replacing a KNOWN problem part. Additionally, there is no rational reason to replace a perfectly good airbag. Replacing the airbag because it is incompatible with a retrofit sensor should be free. Retrofitting a sensor that has a known problem should not be a cost to the consumer for a part that is not subject to wear and tear. Adding a filter to a sensor line shows that the sensor is not an appropriate part or the filter should have been added to start with in original manufacturing. Note Tesla has a procedure already out to address the problem SB-23-20-002 which shows they already know it is a problem that needs to be addressed when the sensor failure shows up. Recommend and request an investigation into whether there is a lower cost fix for what seems like a known problem or require a recall to repair to a safe state.

NHTSA ODI 11597112

My 2018 Model 3 started giving me the error "RCM_a056_passengerFrontOCS" today. This is caused by a faulty passenger occupancy weight sensor. This has been an ongoing issue in these models evidenced by SB-23-20-002 being revised 6 times. Tesla has resisted fixing this safety issue because the air bag also needs to be replaced to maintain compatibility with the redesigned Occupant Classification System (OCS) weight sensor evidenced in Tesla SB-23-20-001. Tesla has redesigned the known bad sensor part no. part 1121234-70-B with an updated part no. 099592-00-F which is only compatible with an updated airbag. The OCS weight sensor was defective from the point of manufacture. The RCM_a056 error only appeared after applying the latest firmware update that addresses NHTSA recall 24V-376. The firmware update made the firmware more sensitive to analog sensor readings which revealed the originally defective OCS weight sensor triggering the error message. Nearly half of the recent NHTSA complaints for this model involve this exact issue. This OCS hardware sensor was always defective and poses an ongoing safety concern. The defective system never should have been approved as it did not function as intended originally. The NHTSA must issue a new recall that covers the defective hardware instead of just the software as in NHTSA recall 24V-376. Without corrected hardware the OCS system will not work as intended which is allowing the airbags to prevent injury and death in the event of collision. [XXX] TeslaSB-23-20-002Replace Occupant Classification System (OCS) of Front Passenger Seat while Servicing Subcomponents TeslaSB-23-20-002 R1 TeslaSB-23-20-002 R2 TeslaSB-23-20-002 R4 TeslaSB-23-20-002 R5 TeslaSB-23-20-002 R6 TeslaSB-23-20-001Update Front Passenger Airbag to Maintain Compatibility While Servicing Front SB Passenger Seat [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11594071

My car started giving me an alert for a "Front Passenger Safety Restraint System Fault". There has been no accident to cause an issue. I'm being told by the service center that it is a known occurrence and certain models/years, require a new safety vent type front passenger airbag to maintain compatibility between the front passenger seat and the front passenger airbag.

NHTSA ODI 11592092

Keep getting a safety restraint system fault error displayed and the estimate is more than $2000.This error just came out of the blue and I am not sure if the vehicle is safe to operate.

NHTSA ODI 11589775

What component or system failed or malfunctioned, and is it available for inspection upon request? Front left safety restraint system fault, must replace first row seat harness assembly for seat belt. It is available for inspection. How was your safety or the safety of others put at risk? Potential Seat Belt Malfunction, Tesla states "Service Required"   Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, common issue all over Tesla forums covering both Model 3 and Model Y. The problem/warning is reproducible on personal vehicle. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Tesla diagnostics showed service is required to replace front row seat belt assembly due to fault. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes, warning on display "Front left safety restraint system fault/Service is required" first appeared on personal vehicle 1 year ago intermittently, but online forums show this issue on similar vehicles dating back to 2019

NHTSA ODI 11584898

This is a follow up to issue 11584898. Tesla Service states that due to the seat belt fault, the vehicle is not safe to drive until repair is complete. Tesla is also not providing a loaner vehicle until the vehicle is repaired. This puts many Model 3 and Model Y Drivers at risk due to limited Tesla and 3rd party service centers, limited service center schedule availability, and high cost of repair.

NHTSA ODI 11584907

The contact owns a 2018 Tesla Model 3. The contact stated while driving at an undisclosed speed, a message displayed reading "Left from passenger safety restraint system fault". The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin: SB-21-17-005. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 105,000.

NHTSA ODI 11583391

Car displayed safety restraint system fault RCM_a094. Tesla diagnosed as rear seat buckle sensor failure. Additionally, car displays an intermittent fault RCM_a056. Tesla diagnosed this as a front passenger Occupant Classification System (OCS) sensor fault. Tesla stated the front passenger airbag would need to be replaced as the new sensor is not compatible with the older airbag. This renders the entire airbag system inoperable due to this component failure. The critical safety issue is extremely expensive as the incompatible sensor requires expensive airbag replacement. Furthermore, the safety system is prone to failure with 2 safety system faults occurring at <80k miles. Service rep stated that the 2018 model year has had issues with the airbag system that is why they updated the module. I asked for recall or replacement at Tesla cost but was denied. Facebook group discussions and search indicate others have intermittent OCS sensor failure and this is likely a defective part for that year.

NHTSA ODI 11581822