2018 Tesla Model 3 Problems

I getting the Tesla phantom braking almost every week.

It showed message that emergency brakes not available. It was related to wire hardness inside the trunk lid. I had to get it replaced. Tesla did not cover it.

While driving, I noticed that the vehicle suddenly began pulling to the right. There were no warning lights, warning messages, or alerts displayed on the vehicle's screen before I noticed the problem. I took the vehicle to the Tesla Service Center and reported that the vehicle was pulling to the right. The service center determined that the issue was likely related to the front suspension and recommended replacement of the front lower lateral links, front lower compliance links, and front upper control arms, along with a four-wheel alignment. The vehicle had approximately 80,000 miles at the time of the repair. The service center explained that these suspension components can wear at higher mileage, particularly because of the weight of the vehicle and its battery. I paid out of pocket for the recommended suspension repairs and four-wheel alignment. The repair invoice is available for inspection upon request. Before the repairs were completed, I was driving the vehicle without knowing that there was a potential problem with the front suspension. The vehicle pulling to the right affected its handling and steering and created a safety concern for me and others on the road. There were no warning lights, messages, or other indications from the vehicle alerting me to a potential suspension problem. I was also not warned by the Tesla service center that the issue could be related to a known or potentially widespread suspension problem. A few days after having the repairs completed, I became aware of an NHTSA investigation concerning front suspension issues involving Tesla vehicles, including the same make, model, and model year as my vehicle. I had already paid out of pocket to have the affected front suspension components replaced. I am submitting this complaint to document the suspension problem, the safety risk I experienced, and the out-of-pocket expense I incurred to correct the issue. I am concerned that I was placed at risk by a potential su

Lots of creaking and grinding noises coming from both front upper control arm bushings. Steering starting to become less stable.

Component/system: The front passenger Occupant Classification System (OCS) in my 2018 Tesla Model 3. The vehicle is available for inspection on request. Description of the failure: The vehicle intermittently displays "Front passenger safety restraint system fault — service required]" on the center touchscreen. The alert first appeared on or about 4 years ago and has recurred approximately ~50 times since. The failure is strongly correlated with cabin temperature. It appears after the vehicle has been parked in direct sun in warm weather, and clears on its own once the cabin cools. It has not occurred in cooler ambient conditions. Safety risk: On this vehicle the front passenger seat uses a capacitive Occupant Classification System rather than a simple occupant-detection pad. The restraint control module uses OCS output to determine both whether the passenger airbag deploys and at what force. When the system faults, I have no way to know whether the passenger airbag is suppressed, will deploy at an inappropriate force for the occupant, or will deploy at all. This directly compromises frontal crash protection for anyone in that seat. I have been avoiding seating passengers there as a result. Inspection and confirmation: The vehicle is outside the basic warranty. Per Tesla's own service documentation, the passenger-side OCS sensor is not individually serviceable; the remedy requires replacing the seat cushion assembly and running a proprietary calibration routine that requires a cabin temperature near 68°F. The vehicle has not been inspected by police, insurance, or any independent shop. Prior warning symptoms: The touchscreen alert described above is the only symptom. There was no prior indication. There is no open recall for this condition on my VIN. Given the number of similar owner reports and the cost of the remedy, I believe many affected vehicles remain unrepaired and in service.

Vehicle displayed a “Safety Restraint System Issue - Service Required” alert (fault codes RCM_a056 and RCM_a032). Tesla diagnosed an open circuit between the driver-side curtain airbag and the left airbag controller, requiring replacement of the left body harness. Tesla quoted approximately $1,800–$2,200 for the out-of-warranty repair. This is a known, recurring pattern — multiple other 2018 Tesla Model 3 owners report experiencing this identical fault at nearly the same mileage (~78,000 miles), suggesting a design or component wear issue rather than isolated damage, similar to a prior Tesla trunk-harness recall (NHTSA campaign 21V-00D) that also stemmed from a wiring/harness defect on this same vehicle. I am requesting NHTSA investigate whether this represents a safety-defect trend warranting a recall.

The vehicle displays a critical 'Front Passenger Safety Restraint System Fault' warning on the dashboard, indicating that the airbag system may not function as designed in a crash. After googling the error code, it appears to be isolated to either frayed wiring harness under the seat or the faulty Occupant Classification System sensor. The issue occurred on June 11 and again on Aug 11 while driving the car. The warning appeared intermittently and I tried to "reset" the car computer. Tesla Service has diagnosed the issue as wiring harness failure/sensor failure and quoted $3000 for repairs, claiming it is out of warranty. This is a safety-critical system failure that poses a significant risk of injury or death to front-seat passengers due to potential airbag non-deployment. Given the high frequency of this specific failure across the Model 3 fleet, this appears to be a design or manufacturing defect rather than normal wear and tear. I am requesting an investigation into this safety defect.

Component/system: The front passenger Occupant Classification System (OCS) in my 2018 Tesla Model 3. The vehicle is available for inspection on request. Description of the failure: The vehicle intermittently displays "Front passenger safety restraint system fault — service required]" on the center touchscreen. The alert first appeared on or about 4 years ago and has recurred approximately ~50 times since. The failure is strongly correlated with cabin temperature. It appears after the vehicle has been parked in direct sun in warm weather, and clears on its own once the cabin cools. It has not occurred in cooler ambient conditions. Safety risk: On this vehicle the front passenger seat uses a capacitive Occupant Classification System rather than a simple occupant-detection pad. The restraint control module uses OCS output to determine both whether the passenger airbag deploys and at what force. When the system faults, I have no way to know whether the passenger airbag is suppressed, will deploy at an inappropriate force for the occupant, or will deploy at all. This directly compromises frontal crash protection for anyone in that seat. I have been avoiding seating passengers there as a result. Inspection and confirmation: The vehicle is outside the basic warranty. Per Tesla's own service documentation, the passenger-side OCS sensor is not individually serviceable; the remedy requires replacing the seat cushion assembly and running a proprietary calibration routine that requires a cabin temperature near 68°F. The vehicle has not been inspected by police, insurance, or any independent shop. Prior warning symptoms: The touchscreen alert described above is the only symptom. There was no prior indication. There is no open recall for this condition on my VIN. Given the number of similar owner reports and the cost of the remedy, I believe many affected vehicles remain unrepaired and in service.

The contact owns a 2018 Tesla Model 3. The contact stated that while driving at various speeds on multiple occasions, the message "Front Left Safety Restraint System Issue RCM_a021" was displayed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 102,000.

Tesla notification that front left safety restraint system has an issue. Service is required. Who isn't going to take their car in when there is an alert saying the safety restraint system has an issue. Then $232 in parts and $484. in labor. After taking in it was diagnosed that seat harness being pinched against the outboard shield causing the pretensioner to fault. Need to replace the seat harness and the pretensioner. Ended up being $232 in parts and $484 in labor. My safety was at risk because this system affects the seatbelt and airbags. Problem was diagnosed, confirmed, and repaired at my cost. Tesla dealership inspected. Thousands of tesla owners repairing at their own cost- maybe should be recall.

The rear passenger side break would not release. Had to be towed because the vehicle was non operational.

My hard brake lines were corroded and had to be replaced on a 7 year old model 3 with 70k miles on it. The cost was over $4000 as battery has to come out and it's very labor intensive. Tesla offered no help with paying for this. They tried to say the car probably was in a very corrosive environment before I bought the car (I purchased it about a year ago). However, I've seen little to no corrosion anywhere on the car. I've decided to report this issue after talking with several lifelong mechanics who have said they have never heard of hard brake lines failing on a car with age and mileage that mine has. Also after searching owner groups I've heard from other owners that have had this same issue and it seems like a growing number especially in early model 3 cars. I was giving a warning about low brake fluid and advised not to drive the vehicle before getting it inspected.

Concern: Suspension Noise - What location is the noise coming from? Front. Suspension or Steering. What best describes the issue? Noise from suspension when driving on uneven roads. Repair Notes: Inspected Front Suspension for Activity 01 (Front suspension noise). Found torn bushings on Front Lateral Links and Compliance Links. Heavily torn on LH side. Safety concern. Both LH and RH Front Lower Compliance link and Lateral Links replacement recommended. Wheel alignment required for Lateral Link replacement.

The contact owns a 2018 Tesla Model 3. The contact stated that while driving at an undisclosed speed, the vehicle was shaking uncontrollably. The contact pulled over and had the vehicle towed to the dealer. The dealer determined that the front control arm had detached from the front passenger’s side wheel. The dealer replaced the front control arm, lateral link, and steering column. The contact stated that there was no impact to the vehicle to have caused the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 76,000.

Component/system: The front passenger Occupant Classification System (OCS) in my 2018 Tesla Model 3. The vehicle is available for inspection on request. Description of the failure: The vehicle intermittently displays "Front passenger safety restraint system fault — service required]" on the center touchscreen. The alert first appeared on or about 4 years ago and has recurred approximately ~50 times since. The failure is strongly correlated with cabin temperature. It appears after the vehicle has been parked in direct sun in warm weather, and clears on its own once the cabin cools. It has not occurred in cooler ambient conditions. Safety risk: On this vehicle the front passenger seat uses a capacitive Occupant Classification System rather than a simple occupant-detection pad. The restraint control module uses OCS output to determine both whether the passenger airbag deploys and at what force. When the system faults, I have no way to know whether the passenger airbag is suppressed, will deploy at an inappropriate force for the occupant, or will deploy at all. This directly compromises frontal crash protection for anyone in that seat. I have been avoiding seating passengers there as a result. Inspection and confirmation: The vehicle is outside the basic warranty. Per Tesla's own service documentation, the passenger-side OCS sensor is not individually serviceable; the remedy requires replacing the seat cushion assembly and running a proprietary calibration routine that requires a cabin temperature near 68°F. The vehicle has not been inspected by police, insurance, or any independent shop. Prior warning symptoms: The touchscreen alert described above is the only symptom. There was no prior indication. There is no open recall for this condition on my VIN. Given the number of similar owner reports and the cost of the remedy, I believe many affected vehicles remain unrepaired and in service.

The contact owns a 2018 Tesla Model 3. The contact stated that while driving on a highway at approximately 70–80 MPH, the hood latch failed, causing the hood to unexpectedly open and strike the windshield, obstructing the driver's visibility. Both the hood and the windshield were damaged. No warning lights illuminated and no unusual sounds occurred prior to the failure. The contact was able to safely pull over to the shoulder of the road. The contact temporarily secured the hood using tools kept in the vehicle and drove to the residence. An appointment was scheduled with a Tesla Collision Center for inspection and repairs. The manufacturer was notified of the failure and referred the contact to the collision center. The failure mileage was approximately 58,700.

After downloading Tesla’s update (no. 2025.44.25.4) software my heater (with the window defrost functionality) in winter stopped operating. I made my update while at my nearest Tesla service compound (location verifiable per system location log) on 01/25/26 when that same day software began throwing HVAC error codes with blowing cold air, when previously my heat ran well. This is not coincidental; this is system design failure.

The front and rear windshields of my Tesla Model 3 developed long cracks requiring full replacement. For over six months, I have been unable to complete these replacements due to repeated failures in the replacement process. The vehicle and damaged glass are available for inspection upon request. My insurance claim was filed with Esurance, and Safelite AutoGlass, Esurance’s designated auto glass provider, has handled all replacement attempts. During this period, three shipments of glass arrived damaged and two shipments were the incorrect glass for my vehicle, resulting in canceled or rescheduled appointments. Safelite has documentation of these failed attempts. Driving with cracked front and rear windshields puts my safety and the safety of others at risk. The damage impairs visibility, especially in rain or low-light conditions, and compromises windshield integrity, which is critical for vehicle structural support and proper airbag deployment. The rear windshield damage also raises concerns about sudden glass failure while driving. The issue has been reproduced and confirmed multiple times by Safelite AutoGlass, an independent service center. While waiting for service, I personally spoke with several other Tesla Model 3 owners at Safelite locations who reported similar experiences, including multiple failed appointments, incorrect glass, and in some cases incorrect installations requiring return visits. This suggests a broader, systemic issue rather than an isolated incident. The vehicle has been inspected multiple times by Safelite AutoGlass, and the issue is documented through Esurance claim records and follow-up complaints I submitted regarding the prolonged lack of resolution. Tesla has not directly inspected the vehicle. There were no warning lights or system alerts prior to the issue. The problem presented as visible cracks that appeared and progressively worsened, prompting replacement attempts beginning approximately six months ago.

The door handles have a defect. The chrome peels off unexpectedly, outside of normal wear and tear, and may cause a deep cut to a person’s finger. It cut my son’s finger, causing bleeding. After researching, I found online that that this has happened to many other people.

The front lateral links, compliance links, and stabilizer bar link on my 2018 Tesla Model 3 Long Range failed and required replacement in January 2026. Prior to failure, abnormal creaking and clunking noise from the front suspension began appearing weeks before the repair — no warning lights illuminated at any point. The failed components were replaced by a Tesla-certified Service Center and are no longer available for inspection. The failure was confirmed and repaired solely by the Tesla Service Center; no police, insurance representatives, or other parties inspected the vehicle. I was charged out of pocket for this repair. The lateral link separation risk directly endangers vehicle safety — if a fastener loosens sufficiently, the lateral link can detach from the subframe, causing sudden wheel misalignment and loss of steering control, which could result in a crash at any speed. Tesla issued recall 23V-235 (NHTSA campaign 23V235000) in March 2023 for this exact condition on 2018-2019 Model 3 vehicles. My vehicle's VIN was not included in the recall population, yet experienced the identical failure mode. I am requesting this complaint be considered for recall expansion under 23V-235 and seeking reimbursement for out-of-pocket repair costs for a defect Tesla has already acknowledged in identical vehicles.

We noticed that one of our tires was leaning inwards and the alignment was completely shot. There was no event that caused this but just noticed it one day driving. After having to replace two new tires, we took it into the Tesla dealership and they found that the control arm and suspension as well as the frame underneath is broken. The car has a clean tittle and this problem use to be covered by Tesla but for some reason now is not and this is a big steering and safety issue! We should not be responsible for the cost to fix the car if this has happened so often in the past!

The bolt/fastner holding the control arms almost backed all the way out. I was driving and heard metal sound it got worse on the drive home. I also noticed the alignment to get worse and when I got home I looked and the bolt/ fastner almost came out. There is a tesla recall for only a small percent for my year with that issue. Tesla wants 4k to replace it. It is a huge safety issue. I have a family and it could have been serious if it detached not only to me and my family but other vehicles other pedestrians.

The front upper control arms on my 2018 Tesla Model 3 have failed multiple times, producing loud clunking, popping, and binding noises during steering. The issue has worsened and poses a serious risk of loss of control while driving. Tesla replaced these parts under goodwill in the past, but the failures have returned. The most recent incident occurred around 03/05/2025 at approximately 106,867 miles. The failure has been confirmed and documented by Tesla Service Centers, and I have multiple invoices showing repeated replacements of the same components. The problem directly affects steering and suspension safety.

I just traded in my vehicle for a Tesla from 3rd party dealership on [XXX] A light came on once I reached my home. I called right away before the dealership closed but no one answered. So I took it upon myself to make a service call to Tesla to get my vehicle checked come to find out my vehicle has extensive damages from my unit drive, my subframe and the battery pack is severe punctures and needs to be replaced. Choice Automotive LLC in Honolulu Hawaii didn’t disclose anything to me before purchasing this vehicle. also they didn’t disclose that this vehicle was in a car accident, but they carried on with the sale. I have pictures of what needs to be repaired. Tesla said, I will need $20,000 to repair these damages. So I’m trying to take legal action against Choice Automotive LLC for selling me a vehicle that needs a lot of repair to drive normal again. I need them to pay for these repairs immediately. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Potential safety defect: high-voltage battery and battery management system (BMS) appear to overestimate available energy and remaining range, creating risk of unexpected 0% state of charge or loss of motive power without warning. Across 20 documented charge/discharge cycles between January and May 2026, the vehicle has consistently delivered approximately 135-150 miles of real-world range against an EPA-rated 310 miles, under routine driving conditions. The vehicle's own energy display shows observed usable energy averaging approximately 49.93 kWh -- approximately 66.6% of the rated 75 kWh pack. Tesla/BMS diagnostics report approximately 79-80% pack retention, implying approximately 58-59 kWh available -- approximately 8-9 kWh more than the vehicle's own consumption display reflects. No BMS fault code, low-power alert, or driver warning has been generated despite this persistent discrepancy. On April 22, 2026, after a drive, the vehicle was parked showing approximately 3% SOC and 7 miles remaining. Approximately five hours later, while parked and not being driven, the vehicle displayed 0% SOC and 0 miles. No fault or warning was triggered. Supporting photographs document the same low-SOC discharge cycle: vehicle at 27%/65 miles on April 20 and at 0%/0 miles on April 22. A driver relying on 3%/7 miles as a margin to reach a charging location could become unexpectedly stranded. If a similar BMS recalculation occurred while driving at low SOC, the result could be sudden unexpected loss of motive power -- a potential roadway safety hazard before the driver receives adequate warning. On May 14, 2026, Tesla Service performed a battery health review (Invoice 3000S0016915237) documenting 79% pack retention, no faults found, no further action. Test name, methodology, and whether the review evaluated BMS calibration accuracy or low-SOC energy availability were not disclosed.

Tesla failed to properly diagnose a high-voltage battery isolation fault in my 2018 Model 3. Despite safety-critical BMS_a027 and BMS_a142 faults indicating multiple isolation failures, they skipped required insulation resistance testing, falsely blamed sand in a connector, and charged me $174.95. After the issue returned, they reversed course, replaced an internal battery contactor, and reduced the $1,173 estimate to $356—admitting fault without owning it. Days later, a diagnostic showed dangerously low isolation resistance (380kΩ, far below Tesla's 1,000kΩ safety threshold), yet they took no further action. On July 12, the car again went into limp mode. Tesla’s repeated failure to follow safety protocols, diagnose accurately, and honor warranty obligations has left me with a vehicle in an unsafe state and no corporate accountability. I've contacted their Resolutions team three times (7/2, 7/7, 7/10) with zero response.

In the last 18 months I have had 8 service visits relating to electrical issues. In the last 30 months: - I had my car computer replaced after it shorted out, and then had to have it replaced again the next week. - I had the same taillight short out twice in a row. - I have had the 12V battery replaced three times. - I have had multiple low voltage controllers short out over multiple service visits. - The sound system has shorted out once as well. - One time, I was unable to shift to drive because a heater had shorted out. Now, I have to replace my right headlight and passenger airbag occupancy sensor due to shorts as well. The right headlight goes out intermittently and the passenger airbag alert fires sometimes. Tesla Corte Madera submitted a buyback request on my behalf after witnessing all these issues, but Tesla corporate denied it. I am sure the electrical issues will continue to affect the safety and drivability of my car. Thank you for your help.

The turn signal stalk does not differentiate between a partial (lane change) press or a full turn press. The signal will remain on until the stalk is moved in the opposite turn direction. This sometimes results in the opposite turn signal activating. This entire process is intermittent while driving. This happens mainly on the highway where an intermittent (half press) of the stalk is performed to switch lanes. When switching lands I have no idea whether it'll work as designed or fail to register a half press or full press of the stalk.

High voltage fast charge contactors experienced partial weld failure (BMS_a167_SW_FC_Partial_Weld) during routine Supercharging, causing complete HV system shutdown (hvState = HV_DOWN). Vehicle also threw BMS_a085/a086 Pack and Fast Charge Contactor Mismatch codes. Tesla service is refusing to cover repair under the 8-Year HV Battery Warranty, claiming fast charge contactors are not a warranted component despite being integrated into the HV battery assembly. Vehicle has been at Duluth, GA Tesla Service Center since approximately June 8, 2025.

Tesla failed to properly diagnose a high-voltage battery isolation fault in my 2018 Model 3. Despite safety-critical BMS_a027 and BMS_a142 faults indicating multiple isolation failures, they skipped required insulation resistance testing, falsely blamed sand in a connector, and charged me $174.95. After the issue returned, they reversed course, replaced an internal battery contactor, and reduced the $1,173 estimate to $356—admitting fault without owning it. Days later, a diagnostic showed dangerously low isolation resistance (380kΩ, far below Tesla's 1,000kΩ safety threshold), yet they took no further action. On July 12, the car again went into limp mode. Tesla’s repeated failure to follow safety protocols, diagnose accurately, and honor warranty obligations has left me with a vehicle in an unsafe state and no corporate accountability. I've contacted their Resolutions team three times (7/2, 7/7, 7/10) with zero response.

1.The component that failed is the load index rating and both inner and outer sidewalls of the tire. Yes, the tires are available for inspection, they are off the car and stored in my garage. 2. I believe the safety of others and my self were at risk, I went for a tire rotation and saw the damage and asked the shop if tires were good and they said its good. Later my father points out this will kill me, so I went back and they offered the replacement warranty with that "tire is free and clear of all liens" claim. :( I refused to sign after reading and bought new tires at tesla and kept the old ones in storage. Also would like to note there website has a gap on warranty manual year after January 1, 2021 to before January 1, 2024 so I'm assuming the newest one is in play. Overall, the safety of others mainly heavy cars like Tesla's are involved. Also the local manger spilled to me that these tires are on Hertz and Enterprise cars, but they might be lighter/cheaper versions then mine. 3. Yes, tesla Tech in Libertyville IL informed me this is a problem and to read my user manual and double check the load index rating. All of which check out correct and don't sound any alarms. 4. no, only firestone and Tesla inspected the tires. 5. No, no warnings besides the cracks forming and getting bigger in the cold weather. Only visual inspection or leak might warn others, but I fear the leak is too late unless parked. Tire size: "235/45R18 94W M+S" from the actual tire. Now that I'm looking at it they are missing the 'P' for passenger.

BRAND NEW VEHICLE WITH 2 TIRES HAVING SIDE WALL BUBBLES. NO ROUGH DRIVING . SEEMS TO BE AN INNER TIRE PROBLEM. MAYBE A DEFECT .CONTINENTAL BRAND TIRES.