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

Error message displays confirming: “Front left safety restraint system default” Error code displayed: RCM_a021 Service is required but Tesla is charging for this safety issue. Researched this and other drivers are reporting same issue.

NHTSA ODI 11579556

I'm getting an error for "Safety restraint system fault" on my Tesla Model 3. When I booked a service appointment it turns out they are wanting to charge $1,955.11 for replacing the Occupant Classification System (OCS) of the front passenger, updating the front passenger airbag, and installing a OCS filter module. This seems to be safety related and should be part of a recall. I have seen similar reports from other drivers on Reddit.

NHTSA ODI 11577664

On Feb 12 2024 the error code RCM_a021 appeared. “Front left safety restraint system fault Service is required.” The service center confirmed that it was an issue related to seatbelt safety during a crash. They said “The specific part that would fail in this case would be the seatbelt pretensioner. When in an impact this deploys and pulls the seatbelt tightly against the driver. This will likely not deploy in an accident if not repaired as the wires going to this component are broken. We are replacing it with a new updated part that will not wear and have this same issue.” Although a known safety issue, it was NOT a repair under warranty. I am putting in this claim and appeal that it should be an under warranty repair. Parts and Labor for 1 seatbelt assembly replacement would have been $450. As it is a known safety issue, I opted to proactively repair both front seat seatbelt assemblies so the cost increased to $650. The cost estimate is attached. Also attached is the text communications with Tesla service center.

NHTSA ODI 11571663

I was driving when I received a service prompt on my Tesla Model 3 stating that there was a fault with my front passenger safety restraint. When I looked around the area, I noticed that the cable securing my seat belt to the vehicle was sticking out of the enclosure by about 6 inches. The car has not been involved in any violent collisions and the seatbelt has not otherwise been abused in any way. The car only has 23,163 miles on it.

NHTSA ODI 11570650

SERVICE ADVISORY FOR FRONT DRIVER'S SIDE SEAT BELT SYSTEM APPEARS ON CENTRAL SCREEN AFTER SEATBELT IS UNLATCHED AND RETRACTED. FRONT RIGHT SIDE ALSO HAD THIS WARNING BUT IT NO LONGER DOES. WARNING READS AS FOLLOWS : "! FRONT LEFT SAFETY RESTRAINT SYSTEM FAULT. SERVICE IS REQUIRED. NOTE: THIS WARNING REAPPEARS EVEN WHEN THE SEAT BELT IS HELD LOOSELY AND ALLOWED TO FULLY SNAP BACK INTO THE RETRACTOR. THE WARNING PERSISTS EVEN AFTER REBOOTING THE MAIN SCREEN (DOUBLE SCROLL WHEEL PRESS REBOOT)

NHTSA ODI 11568576

Many Tesla owners are experiencing this issue: "Front left (or right) safety restraint system fault. Service is required" message on screen Tesla service quoted $430 for a repair of a problem that shouldn't exit on a privately owned, non commercial low mileage (<50k in 5 years) vehicle. Tesla service refuses to do a recall or warranty repair. Comparison; we have a family Volvo with ~250k miles and it has never had a seat belt issue!

NHTSA ODI 11568261

I have three potential safety hazards to report. Tesla has advised that there is no recall for any of these. 1) The car issued an alert that says "Front Passenger Safety System Fault." This seems like the most serious. 2) The horn malfunctions and does not work at safe level 3) The driver's side mirror does not consistently extend out preventing the driver from adequately using the mirror for driving.

NHTSA ODI 11567584

began receiving fault alert 'RCM_a021 - Front Left Safet Restraint System Fault' in December 2023. Web query indicates this has become a common problem, with the source being a loose connection of the seat wiring harness under the front driver's seat. No other observed malfunction of the vehicle. alert occurs whenever car is entered and powered on (seat adjusts for specified driver). Alert seems to be based on loose wire that is either loose or severed at the wire harness connection.

NHTSA ODI 11567614

We intermittantly received alerts on the screen showing "Front safety restraint system fault (service is required)." After many hours of research, we found that other owners also have the same issue and they found that a wire from a electrical connector that connected to the seatbelt pretentension was broken from the seat being moved up and down.

NHTSA ODI 11565648

My Tesla has been in need of repair for a "System Restraint Fault" 5 times since the car was purchased and 4 times in the past year. The Tesla service center has replaced multiple components including the seat harness, seat sensor, airbag, low voltage circuits over the span of the service appointments. It is unknown what would happen if an accident were to occur with the sensor fault activated or if it would cause an accident. I bring this issue up because it is a known issue to Tesla but I have not seen any recall information, nor does it seem like the service centers know how to fix the issues, especially since I have taken the car in so many times during the life of the car.

NHTSA ODI 11564461

When driver seat adjusted to end positions (e.g all the way up/down/forward/backward), it causes an error message stating “Front left safety restraint system fault” & and airbag failure icon would appear. This usually cause by the wire harness being pinched or stretched. The error message may come and go based on the position of the seat, and occurs more frequently as time goes by. I am concern that the airbag or other safety restraint system may fail to engage when the message pops up. Tesla community has reported similar failure.

NHTSA ODI 11563598

Seat restrain system detected a fault with the back row seat buckle. This appears to be a repeated issue based on other drivers reporting same safety issue. Happy to provide photos.

NHTSA ODI 11562763

Recall items not available

NHTSA ODI 11562655

Seat belt sensor went off. Took vehicle to Tesla and was charged for a replacement of the seat buckle that you place the seat belt in. This should be a safety hazard and should not be a charge to replace a safety seat buckle. I have an invoice of the work done and what I paid to fix.

NHTSA ODI 11561712

Car issued a message on screen: "Front left safety restraint system fault. Service is required". From what we found online, others are experiencing this same problem with this make/model and have also received this message recently. Appears that there is a bad connector under the seat. This sure seems to be a safety issue so wanted to make you aware. At this point, it is reported that Tesla has been charging people to fix the safety issue. We plan to make a service appointment to get this fault addressed and hope that they will fix it at no cost to us.

NHTSA ODI 11560069

The issue I am having is already documented in this TSB: [XXX] I feel this should be a recall, not just a TSB as it is a safety issue which can cause the seatbelt pre-tensioners to fail. If may fail at the time of a collision with no previous notice and cause the pre-tensioner to not work in the event of a collision. This should be repaired free of cost by Tesla. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11559264

I have been receiving an error message that there is a safety restraint system failure. I reached out for service and have been advised it will cost $195 minimum just for them to tell me if my safety is at risk. I don’t understand how if there is a safety issue regardless of being out of warranty why I should be responsible for their systems failing in a 5 year old car

NHTSA ODI 11555665

Vehicle displays alert "Passenger Safety Restraint System Fault." Tesla repaired my vehicle last year for this same alert and now it has returned. Tesla claims the Occupant Classification System and passenger airbag must now be replaced. These critical safety components should not fail only 5 years after I purchased this vehicle. Many other Tesla owners report this same issue indicating it is a safety-related defect.

NHTSA ODI 11555169

The contact owns a 2018 Tesla Model 3. The contact stated while driving at an undisclosed speed, a message was displayed alerting the driver to a passenger safety restraint fault. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular failure. The air bag warning light was illuminated. 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 the NHTSA Campaign Number: 21V389000 (Seat Belts) but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 60,000.

NHTSA ODI 11552627

I have had a safety restraint fault on the vehicle once before and Tesla came and replaced something. It never came back. Until I'm a couple thousand miles over the warranty and I "randomly" get another safety restraint fault. I filed the service report for them to tell me it's the seatbelt. I replaced the seatbelt and the error continues. This is a safety issue that needs to be addressed as thousands of people are having the same "fault" codes. This is a known problem teslas have and they are doing nothing to address it. I'm in shock this is allowed to happen

NHTSA ODI 11546511

Front passenger safety restraint alert continuously stayed on with and without passenger seated. Took vehicle to solve problem immediately on 9/4/2023. After it was diagnosed, the occupancy sensor was faulting and the concerned technician had to retrofit the sensor system to address the problem. Technician replaced the front AIR BAG AND THE SEAT HARNESS for the new sensor costing approximately $1,300. This was thought to have been covered since it was seat belt/air bag issue but I had pay to have them replaced.

NHTSA ODI 11546149

The passenger safety restraint system fault message pops up when driving normally. The diagnostic came up to replace the whole airbag after communicating with service center.

NHTSA ODI 11545748

Safety restraint system fault RCM_a094

NHTSA ODI 11539584

The middle rear passenger seatbelt became loose and unhinged at the hip. We notified the repair team and was quietly fixed and they told us it is a common thing they have been fixing. If this is true, the bolt could come loose during an accident and cause the seatbelt to not restrain a passenger if not fixed. The file attached says they inspected the seatbelt but “no correction required” even though the technician did in fact reattach the seatbelt.

NHTSA ODI 11539385

2018 Tesla Model 3 shows “Front left safety restraint system fault”. My car was not identify as having the recall applied but have the same issue the recall or warranty would resolve. My care is out of warranty and Tesla want to charge estimated $1,500 to resolve this issue. Tesla has this issues with all makes and models and is a safety issue.

NHTSA ODI 11537950