Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Tesla Model 3 owners, lightly cleaned up (personal details are redacted by NHTSA).
I have an alert that says "Front passenger safety restraint system fault". I took the car in to Tesla Service in late April. Was told it would be about $270 to replace the sensor in the seat that detects it someone is sitting in it. They told me that when the parts people went in, that wasn't the issue and that to fix the sensor they thought it was they would have to tear the whole seat apart and that takes too long so instead I need to buy a whole new seat at the cost of $3000. I didn't have time to deal with it further at that point and the seat was back ordered anyway. I asked if the issue would affect the operation of the airbags or seat belts thus causing a safety concern and was told that it would not. That the car was still safe. I took the car back without repair. …
2020 Tesla Model 3 Standard Range Plus, VIN [redacted] restraint control module fault codes RCM_a056 and RCM_a058. Passenger front seat occupancy sensor failure triggering "Service Required" airbag system alert. September 2024: fault code RCM a056: Tesla repaired this issue under the Supplemental Restraint System Limited Warranty (5 years, 60,000 miles) at Tesla Service Latham NY (326 Old Niskayuna Rd, Latham NY 12110). January 10, 2026: Fault code RCM_a058. Reported in writing through the Tesla app. Tesla scheduled a service visit for January 13, 2026. Technician assessed the vehicle in person and declined to repair, verbally stating the fault may be a one-time occurrence and to monitor and return if it continued. April 2026: Fault continues recurring. Tesla Service Latham issued estimate #[redacted] dated April 18, 2026 for $1,076.32 customer pay. …
For the fourth time the seat sensor has failed in the driver seat. when the seat sensor fails the car no longer auto connects blue tooth media play from the phone but also no longer detects an occupant in the vehicle. this causes the vehicle to go in to park while driving at low speeds without a seat belt, i.e. moving the vehicle in the garage, and it also prevents the car from recognizing when the occupant has left the car and leaves it powered on the whole time. the first three times they repaired it under warranty and it has not failed for the fourth time in four years. I have asked if the sensor function can be deactivated and they said that it can not and needs to be continuously replaced. …
There was a recent software update and Tesla rearranged items on the touchscreen. Passenger was trying to pair his phone with the vehicle, and touched his name as displayed on the screen. This caused the driver seat to slide back quickly to fit the pre-set for his height. He is considerably taller than the driver, and this caused the driver to be unable to reach the brake pedal or accelerator. Therefore, the driver had almost no control of the vehicle. This occurred on a quiet side street going uphill, so driver could steer the vehicle to the curb which caused it to stop, even though she could not reach the brake pedal. However, if this had happened on a busy street or highway, there would have been a terrible accident. Remedy is simple. It should NOT be possible to activate the driver side seat position pre-sets when the vehicle is moving.
I received a message on the screen saying there was a problem with the OCS and that it needed to be serviced immediately. I take it to Tesla service and they tell me they will need to do the following: 1. Replace MODULE - OCS FILTER 2. Retrofit SBR in OCS Equipped Front Passenger Seat - Remove and Replace 3. Replace FIRST ROW SEAT HARNESS 4. Replace FIRST ROW - SEAT BELT REMINDER SENSOR BOX CLIP 5. Replace FIRST ROWOCCUPANCY SENSOR 6. Replace FIRST ROWHARNESS ASSEMBLY -OCCUPANTCLASSIFICATION SYSTEM - RIGHTHAND 7. Replace Front PassengerAirbag And Update VehicleConfiguration - Remove and Replace To have all of this done, I paid $1,850. Nothing is covered under warranty. I have 64,000 miles on my car. It has never been in a wreck and I have taken good care of it. From what I understand, this is a common problem with Tesla's.
My 2020 Tesla Model 3 has displayed a "Front Passenger Safety Restraint System Fault - Service is required" error since June 2023. This error has persisted for well over a year despite troubleshooting attempts, such as restarting the vehicle and checking for obstructions. Tesla service quoted over $400 to repair this issue, but I believe this is a basic safety-related defect that should be covered by the manufacturer, as it likely disables the front passenger airbag, posing an unreasonable risk of injury or death in a crash. This appears to be a widespread issue, as I've seen similar complaints from other Tesla owners online. I request that NHTSA investigate this as a potential safety defect for a recall.
The car has message saying "Safety Restraint System issue" . There has been no event to cause this. No recent MVA or any stress or damaging incident to the seat belt or seat in general. Reviewing this on the internet, this is a common defect on Tesla's. The company won't fix it unless you pay them to do so which is crazy considering it is a defect in their safety system. And a well known one to them from my communication with their Tesla service centers which have a monopoly on fixing Tesla's. He said there would have to be a recall. So that is exactly what needs to happen from the NHTSA.
An alert stated: "RCM_a056 Front passenger safety restraint system fault." Upon bringing car to Tesla service center, Tesla stated: "Confirmed concern through vehicle logs. Found vehicle needing passenger ocs retrofit to resolve issue. Customer declined repair." They wanted over $1,200.00 for a faulty seat sensor because they claimed they couldn't replace the seat sensor without replacing the entire airbag system on the passenger side. They explained to me that they changed the airbag systems in their newer Model 3s and refused to stock or replace components in their older Model 3s.
I received a proactive service alert from Tesla car stating: Front Passenger Safety Restraint System Issue. Tesla wants to charge me to fix this and said there may be issues with the restraint system, such as seats belts or airbags if I don't pay out of pocket to fix it. This seems ridiculous I have to pay to fix this safety concern.. please issue a recall for this... seems a lot of people are getting this after researching on google and Reddit. Thanks
Many Tesla owners have received notifications about a "Front Passenger Safety Restraint System Fault". It seems that there might be a defect with the car, given the number of people impacted and the severity of not having proper safety restraint. I am very careful with my car, and it has not been involved in any accidents, so I think Tesla should do a recall to make sure all Front Passenger Safety Restraint System is functional
Seat complaints in other Model 3 years
Frequently asked questions
How common are seat problems on the 2020 Tesla Model 3?
NHTSA has 23 complaints about the seats of the 2020 Tesla Model 3, 5% of the model year's 452 complaints.
Is there a recall for 2020 Tesla Model 3 seat problems?
No. NHTSA lists no seats recall for the 2020 Tesla Model 3, though it has 21 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Tesla Model 3 seat problems start?
Half of the complaints with a recorded mileage happened before about 19,000 miles, and 100% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 0 fires and 2 injuries to seats problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.